hp multi-site traffic director server appliance sa9200 user guide
©Copyright 2001 Hewlett-Packard Company. All rights reserved. Hewlett-Packard Company 3000 Hanover Street Palo Alto, CA 94304-1185 Publication Number 5971-0897 March 2001 Disclaimer The information contained in this document is subject to change without notice. HEWLETT-PACKARD COMPANY MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
Contents Chapter 1: Introduction 1 What is an HP Multi-Site Traffic Director Server Appliance SA9200? . . . . . . . . . . . 1 Who Should Use This Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 User Guide Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Chapter 2: Theory of Operations 5 Site Balancing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONTENTS HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Chapter 3: CLI Configuration 17 Custom/Manual Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Command Line Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Adding a Secondary SA9200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Creating Agents . . . . . . . . . . . . . . . . . . . . . . . .
Contents Objects and Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Global & CLI System Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 File Management Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Configuration Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 System Commands. . . . . . . . . . . . . . . . . . . . . . .
CONTENTS HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Appendix D: Terms, Conditions and Software License 187 Support Services 189 Glossary 193 Index 197 iv
Introduction What is an HP Multi-Site Traffic Director Server Appliance SA9200? The HP Multi-Site Traffic Director Server Appliance SA9200 is a global site balancer. It gathers your geographically dispersed data sites into multiple “virtual servers,” which gives you multifaceted, centralized control over widely distributed resources.
CHAPTER 1 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide • Scalability The SA9200 can work cooperatively with up to fifteen other SA9200s in deployment across sites. A site may be managed by any HP Traffic Director Server Appliance or HP e-Commerce Traffic Director Server Appliance, which can in turn intelligently manage server farms, and return server performance data to the SA9200. The SA9200 also supports sites that have third-party load balancers.
CHAPTER 1 User Guide Summary User Guide Summary In addition to this introduction, the user guide contains the following chapters: • Theory of Operations An overview of the multi-site network, the SA9200’s place in it, and some concepts you need to know to use the unit effectively. • CLI Configuration Instructions on how to use the Command Line Interface (CLI) to manually configure additional sites, agents, zones, and services.
CHAPTER 1 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Notes 4
Theory of Operations NOTE: HP Traffic Director refers to either an HP Traffic Director Server Appliance, Model SA7200 and SA7220; or HP e-Commerce Director Server Appliance, Models SA8200 and SA8220. Typical load balancers work by balancing traffic over a Local Area Network (LAN) to a Web farm. The HP Multi-Site Traffic Director Server Appliance SA9200 extends this balancing to multiple sites over a Wide Area Network (WAN).
CHAPTER 2 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Site Balancing “Intelligent” DNS The SA9200 leverages the DNS architecture and protocol as the basis for its site balancing operations. Based on the information gathered from all sites, the SA9200 returns the address of the site that best meets the criteria for fulfilling the request. Traditional DNS Traditional, or Round Robin, Domain Name Service (DNS) is a rudimentary means of server load balancing.
CHAPTER 2 Authoritative DNS Servers SA9200 SA8200 (Los Angeles) SA8200 (Chicago) ns.mstd-ex.com (Chicago) Authority for msd-ex.com Client (San Diego) Local DNS server (San Diego) Multi-Site Load Balancing Authoritative DNS Servers The DNS maps, or “resolves” hostnames into IP addresses. It is, in effect, a distributed database operating through a distributed, hierarchical system of Domain Name Servers.
CHAPTER 2 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide 4. The client DNS server sends a query to the mstd-ex.com Authoritative DNS server to resolve www.mstd-ex.com. 5. The Authoritative DNS server responds to the client DNS server with the IP address of www.mstd-ex.com. 6. The client DNS server responds to the client with the IP address of www.mstd-ex.com. In the discussion above, the SA9200 acts as authoritative DNS server for zone.mstd-ex.
CHAPTER 2 Multi-Site Traffic Management Without HP Traffic Directors Multi-Site Traffic Management Without HP Traffic Directors The SA9200 can support data centers, whether or not they have an HP Traffic Director.
CHAPTER 2 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Site Balancing Methods The SA9200 supports six site-balancing methods or algorithms. The operator chooses the method most appropriate to the deployment to optimize traffic volume, priority, resource availability, and the overall desired outcome. Weighted Algorithms Metric Algorithms • Weighted Round Robin - Two differences distinguish this method from traditional, or Round Robin, DNS.
CHAPTER 2 Metric Algorithms method are enterprises that have identified the efficient fulfillment of a specific type or types of traffic as being crucial to their business goals. • Least Connections - The Least Connections method sends requests to the site with fewest number of connections. This method permits the most efficient management of requests that are likely to require connections of long duration, such as FTP.
CHAPTER 2 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide allows the user to declare that if Server A is within 2400 connections (80% of maximum) of Server B, consider referrals to Server A even if Server B is the lowest. The factor setting would be 2400 for the service associated with Server A and 0 for the service associated with Server B. Flash DNS Network topology can greatly affect the overall transfer rate between a site and a client.
CHAPTER 2 Partial Failures Status: OK This state indicates that the required services behind this service are available on the associated load balancer. The metrics information for this service are current and can be used for metric load balancing. Status: No Services This state indicates that services other than the one(s) configured as required for the associated host are not available on the load balancer. Other services with this same service are available.
CHAPTER 2 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Multiple VIP Response The DNS response from a SA9200 may contain multiple answers. The number of answers and whether to include stand-by VIPs can be configured. Active VIPs are included first in the response. A stand-by VIP is treated as an active VIP, if it is marked as “IN USE” due to a failed VIP.
CHAPTER 2 Definitions Primary SA9200 is a SA9200 that automatically transfers (copies) configuration information to secondary SA9200s (through the Global Sync process). Configuration may only be changed on a Primary SA9200. Service is the Virtual IP (VIP) and port number of an application service available at a site. Authoritative Server is a DNS name server that has complete name space information regarding the hosts within a given zone (see below).
CHAPTER 2 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Notes 16
CLI Configuration Custom/Manual Configuration You can manually change any specific configuration parameters if any of the Quick Start Wizard default settings are not sufficient for your site. It is recommended that you use the custom configuration method only after you have completed the initial configuration with the Quick Start Wizard. See the HP Multi-Site Traffic Director Server Appliance SA9200 Getting Started Guide for instructions on using the Quick Start Wizard.
CHAPTER 3 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Braces ({}) Optional commands or parameters appear between braces. Bold Commands shown as they are entered after the CLI prompt appear in bold type. (The prompt appears in normal typeface to distinguish it from the command text.) Vertical bar (|) Separates choices of input parameters within straight brackets. You may choose only one of a set of choices separated by the vertical bar.
CHAPTER 3 Custom/Manual Configuration SA9200. Secondaries get their configuration from their designated primary SA9200 and store a copy of the received configuration locally. Should a secondary be unable to contact a primary it functions normally using its stored configuration. All SA9200s have the same picture of the current Agent metrics and are equally capable of responding. Should one fail the existing DNS protocol automatically routes requests to the non-failed SA9200s. The theoretical secondary ns2.
CHAPTER 3 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Associating Services with Agents Next, services must be associated with agent(s): HP SA9200# config dns agents lb1 services create 10.54.67.5:80 HP SA9200# config dns agents lbl services create 10.54.67.6:80 HP SA9200# config dns agents lb2 services create 10.100.68.5:80 HP SA9200# config dns agents lb2 services create 10.100.68.6:80 Creating Zones The next step is to create a zone (e.g., somedomain.xyz-ex.com) on the SA9200.
CHAPTER 3 Custom/Manual Configuration HP SA9200/config/dns/zones/somedomain.xyzex.com# info Zone: somedomain.xyz-ex.com Authority Records TTL: 7200 Authority Name: ns1.xyz-ex.com Authority IP: 10.54.67.2 Authority Name: ns2.xyz-ex.com Authority IP: 10.100.68.2 Creating Hosts Next, the hostname www.somedomain.xyz-ex.com is created: HP SA9200/config/dns/zones/somedomain.xyzex.com# hostnames create www Create Hostname Successful The next step is to map the services www.somedomain.xyz-ex.
CHAPTER 3 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Committing the Configuration The commit command is used to put the configuration into effect. HP SA9200/config/dns/zones/somedomain.xyzex.com/hostnames/www/vips# commit all Warning: Your active configuration will be overwritten. Are you sure you want to commit the configuration (yes|no)? yes Configuration has been committed NSLookup The nslookup utility can verify that the SA9200 is correctly resolving www.somedomain.xyz-ex.
CHAPTER 3 Configure DNS Servers Multiple-VIP Response A DNS response may contain multiple answers. A standby VIP is automatically considered as a response if it is marked “IN USE” due to a failed VIP. When multi-VIP standby is enabled, standby VIPs are included in a response if the number of additional VIPs in the response has not been met1. To include standby VIPs, type config dns zones hostnames multi-vipstandby enable. HP SA9200#config dns zones somedomain.xyzex.
CHAPTER 3 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Notes 24
Multi-Site Scenarios Scenario 1 One Web site, two geographical sites (one server each), two SA9200s, optional SA7120s Introduction An e-commerce company with a single Web site (www.mstdex.com) wants to expand their site to two geographically dispersed locations so that customers can be referred to the site that gives them the fastest response time. They initially deploy only a single server at each site (no load balancers), but they want the ability to expand as the demand on their Web site increases.
CHAPTER 4 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide changed to Flash Response Mode to deliver the site that has the least network latency to potential customers. Part 1 – Initial Configuration of a Simple Site Key Concepts • No Load Balancers (non-brokered) • ISV • Two Sites • Configuring a Secondary SA9200 • Delegating Authority to a SA9200 east coast west coast Router Router Internet SA9200 10.1.1.1 SA7120 SA9200 SA7120 10.2.1.100 10.1.2.1 10.2.2.
CHAPTER 4 Scenario 1 Step 1. Create the ISV Groups for each site and associate their services. The creation of an ISV Group is primarily for management purposes. The ISV Group is referred to by name. This allows you to choose a name that is meaningful to you in your network environment (e.g., westcoastsite). Names are case insensitive. HP SA9200# config dns isvgroups HP SA9200/config/dns/isvgroups# create westcoastsite ISV group westcoastsite created.
CHAPTER 4 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Step 2. Select HTTP probe as the ISV method and associate a URL with each service. Since there are no load balancers, ISV must be used to determine site service availability. In this scenario the site represents a distributed Web site. The best way of determining site service availability is a combination of ISV and traffic monitoring. Only a load balancer can do this. The next best thing is ISV using an HTTP probe.
CHAPTER 4 Scenario 1 HP SA9200/config/dns/zones/geo.mstd-ex.com# info Zone: geo.mstd-ex.com Authority Records TTL: 86400 Authority Name: nswc.mstd-ex.com Authority IP: 10.1.1.1 Authority Name: nsec.mstd-ex.com Authority IP: 10.1.2.1 Hostnames: www Step 4. Create Host and Specify Balancing Method. When you create the hostname you can specify the balancing method to use in selecting which site services are referred. For this scenario, the balancing method eventually is Flash Response Mode.
CHAPTER 4 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide HP SA9200/config/dns/zones/geo.mstd-ex.com/ hostnames# create www HP_SA9200/config/dns/zones/geo.mstd-ex.com/ hostnames/www/siteservices# map westcoastsite:10.2.1.100:80 Site Service mapped HP_SA9200/config/dns/zones/geo.mstd-ex.com/ hostnames/www/siteservices# map eastcoastsite:10.2.2.100:80 Site Service mapped HP_SA9200/config/dns/zones/geo.mstd-ex.com/ hostnames/www/siteservices# info Site Service: westcoastsite:10.2.1.
CHAPTER 4 Scenario 1 Step 7. Configure the Secondary SA9200. Type the IP address of the primary SA9200 (10.1.1.1). HP SA9200# config dns secondary 10.1.1.1 Warning: Your current configuration will be lost. Are you sure you want to become a Secondary (yes|no) ? yes Now running as a Secondary In a matter of seconds after issuing the command, the secondary has a copy of the configuration from the primary. Subsequent commit all commands automatically transfer the configuration to every attached secondary.
CHAPTER 4 Part 2 – Changing to Flash Response Mode Balancing HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Key Concepts • Flash Response Mode • Associating SA9200s with a site Procedures Now that the SA9200 is configured and functioning properly it is time to modify the configuration to use Flash Response Mode balancing instead of Weighted Round Robin. Step 1. Associate SA9200s with a site.
CHAPTER 4 Scenario 1 HP SA9200/config/dns# save first-cfg Configuration saved HP SA9200/config/dns# commit all Warning: Your active configuration will be overwritten.
CHAPTER 4 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide w e st coa st ea st co ast R o ute r R o ute r Interne t S A 9200 S A 9200 10.1.1.1 IS V G ro u p s an d S ervice s S A 7 100 H P T raffic D irector 1 0.1.2 .1 S A 710 0 H P T raffic D irector 1 0.1.2.2 10.1.1.2 (se rvers ) (se rve rs) S ervic es S ervices w w w .m std-ex.com 10 .2.1.50:80 w w w .m s td -ex.co m 1 0.2 .2 .5 0:8 0 Step 1. Add the load balancers and their services to the SA9200 configuration.
CHAPTER 4 Scenario 1 If a service is disabled individually, but the agent/ISV Group is left enabled then no referrals are made to that service, but communication is attempted to the services associated agent/ISV Group. HP_SA9200/config/dns# agents HP_SA9200/config/dns/agents# create westcoastbroker ip 10.1.1.2 Agent westcoastbroker created HP_SA9200/config/dns/agents# westcoastbroker HP SA9200/config/dns/agents/westcoastbroker# services HP SA9200/config/dns/agents/westcoastbroker/ services# create 10.2.1.
CHAPTER 4 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Step 2. Map the new services to a hostname. When services are mapped to a hostname they are set to the enable state of their parent agent/ISV Group. If the agent/ISV Group is disabled then the mapped service is disabled. In the last step we created agents and disabled them. Therefore we do not need to explicitly disable them after mapping them. HP SA9200/config/dns# zones geo.mstd-ex.com HP SA9200/config/dns/zones/geo.mstd-ex.
CHAPTER 4 Scenario 1 HP SA9200/config/dns/zones/geo.mstd-ex.com/ hostnames/www# info Host: www Method: flash TTL: 60 Return Authoritative:Yes Max Additional Responses: 0 Multi-VIP Standby:Disable Site Services: westcoastsite:10.2.1.100:80 westcoastbroker:10.2.1.50:80 eastcoastbroker:10.2.2.50:80 Step 4. Commit the new configuration. At this point, you can save and commit the configuration. HP SA9200/config/dns/zones/geo.mstd-ex.
CHAPTER 4 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide HP SA9200/config/dns/agents# .. HP SA9200/config/dns# isvgroups HP SA9200/config/dns/isvgroups# delete westcoastsite ISV Group westcoastsite deleted HP SA9200/config/dns/isvgroups# commit all Warning: Your active configuration will be overwritten.Are you sure you want to commit the configuration (yes|no) ? yes Configuration has been committed Step 7. Bring the new westcoastbroker hardware on line.
CHAPTER 4 Scenario 2 Scenario 2 Multiple sites, server farms, multiple hostnames, multiple SA9200s, generic (not HP) load balancer A large company with multiple divisions wants to integrate most of the division’s Web sites onto server farms located at two new geographically dispersed data centers. • One division already has an existing brokered server farm at a third site that they refuse to give up. The load balancer at this third site is not an HP Traffic Director.
CHAPTER 4 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide • Flash Response Mode • Mixture of Brokered and Non-brokered Sites • Different Site Combinations for Each Hostname • Different Balancing Methods for Each Hostname • Associating Services with Hostnames Procedures NOTE: HP Traffic Director refers to either an HP Traffic Director Server Appliance, Models SA7200 and SA7220; or HP e-Commerce Traffic Director Server Appliance, Models SA8200 and SA8220 Step 1.
CHAPTER 4 Scenario 2 • Create Site 1 and associate services: Site 1 Internet Router SA9200 SA9200 10.1.1.3 ns1.mstd-ex.com 10.1.1.1 (hot backup for Flash) 10.1.1.2 HP Traffic Director (2) (servers) Services www.mstd-ex.com 10.1.1.100:80 www.secure.div1.mstd-ex.com 10.1.1.100:443 ftp.div1.mstd-ex.com 10.1.1.102:21 www.div2.mstd-ex.com 10.1.1.103:80 HP SA9200/config/dns/agents# site1 HP SA9200/config/dns/agents/site1# flash-src 10.1.1.1 Primary Flash Src set to 10.1.1.
CHAPTER 4 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide HP SA9200/config/dns/agents/site1/services# create 10.1.1.102:21 Service created HP SA9200/config/dns/agents/site1/services# create 10.1.1.103:80 Service created HP SA9200/config/dns/agents/site1/services# .. HP SA9200/config/dns/agents/site1# .. • Create Site 2 and associate services: Site 2 Router (hot backup for Flash) SA9200 SA9200 ns2.mstd-ex.com 10.1.2.1 10.1.2.3 10.1.2.
CHAPTER 4 Scenario 2 HP SA9200/config/dns/agents# create site2 ip 10.1.2.2 Agent site2 created HP SA9200/config/dns/agents# site2 HP SA9200/config/dns/agents/site2# flash-src 10.1.2.1 Primary Flash Src set to 10.1.2.1 HP SA9200/config/dns/agents/site2# flashbackup-src 10.1.2.3 Backup Flash Src set to 10.1.2.3 HP SA9200/config/dns/agents/site2# services HP SA9200/config/dns/agents/site2/services# create 10.1.2.100:80 Service created HP SA9200/config/dns/agents/site2/services# create 10.1.2.
CHAPTER 4 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide • Create Backup Site and associate services Backup Site Router SA9220 SA9200 (hot backup for Flash) 10.1.4.3 ns5.mstd-ex.com 10.1.4.1 SA7100 HP Traffic Director (2) 10.1.4.2 (servers) Services www.mstd-ex.com -10.1.2.100:80 www.secure.div1.mstd-ex.com -10.1.2.100:443 ftp.div1.mstd-ex.com - 10.1.2.102:21 www.div2.mstd-ex.com -10.1.2.103:80 HP SA9200/config/dns/agents# create backupsite ip 10.1.4.
CHAPTER 4 Scenario 2 HP SA9200/config/dns/agents/backupsite/ services# create 10.1.2.100:80 Service created HP SA9200/config/dns/agents/backupsite/ services# create 10.1.2.100:443 Service created HP SA9200/config/dns/agents/backupsite/ services# create 10.1.2.102:21 Service created HP SA9200/config/dns/agents/backupsite/ services# create 10.1.2.100:103 Service created Step 2. Create ISV Group for the generic (not HP Traffic Director) brokered site and associate its service.
CHAPTER 4 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide of failure, so a second SA9200 is located at this site. The second SA9200 does not need to be listed as authoritative for any zones, but this would be a waste of a good resource. internet Site 3 Router SA9200 SA9200 ns4.mstd-ex.com 10.1.3.2 ns3.mstd-ex.com 10.1.3.1 generic load balancer Server www.div2.mstd-ex.com 10.2.3.
CHAPTER 4 Scenario 2 HP SA9200/config/dns/isvgroups/site3/services/ 10.2.3.103:80# method tcp Probe Method set to tcp Step 3. Create the delegated zones for the hostnames and the authority records for each zone. Since SA9200s are deployed at every site, there is no reason to not utilize all of them to their full capabilities. All that is required to do this is to make all of the SA9200s authoritative for both zones.
CHAPTER 4 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide HP SA9200/config/dns/zones/div2.mstd-ex.com# create-authority ns1.mstd-ex.com ip 10.1.1.1 Authority record ns1.mstd-ex.com created HP SA9200/config/dns/zones/div2.mstd-ex.com# create-authority ns2.mstd-ex.com ip 10.1.2.1 Authority record ns2.mstd-ex.com created HP SA9200/config/dns/zones/div2.mstd-ex.com# create-authority ns3.mstd-ex.com ip 10.1.3.1 Authority record ns3mstd-ex.com created HP SA9200/config/dns/zones/div2.mstd-ex.
CHAPTER 4 Scenario 2 In this scenario, the services available on a single Web site have been divided into three different hostnames: www (HTTP), wwwsecure (HTTPS), and ftp (FTP). Another advantage of dividing the service types like this is that each hostname can be configured to use a different balancing method. Typically FTP traffic has fewer connections, but longer connection times. This is ideal for balancing by Least Connections.
CHAPTER 4 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide HP_SA9200/config/dns/zones/div1.mstd-ex.com/ hostnames/www/siteservices# backupsite:10.1.4.100:80 HP_SA9200/config/dns/zones/div1.mstd-ex.com/ hostnames/www/siteservices/ backupsite:10.1.4.100:80# standby Site Service Standby HP_SA9200/config/dns/zones/div1.mstd-ex.com/ hostnames/www/siteservices# .. HP_SA9200/config/dns/zones/div1.mstd-ex.com/ hostnames/www# .. HP_SA9200/config/dns/zones/div1.mstd-ex.com/ hostnames# ..
CHAPTER 4 Scenario 2 HP_SA9200/config/dns/zones/div1.mstd-ex.com/ hostnames/wwwsecure/siteservices/ backupsite:10.1.4.100:433# standby Site Service Standby HP_SA9200/config/dns/zones/div1.mstd-ex.com/ hostnames/wwwsecure/siteservices/ backupsite:10.1.4.100:433# .. HP_SA9200/config/dns/zones/div1.mstd-ex.com/ hostnames/wwwsecure/siteservices# .. HP_SA9200/config/dns/zones/div1.mstd-ex.com/ hostnames/wwwsecure# .. HP SA9200/config/dns/zones/div1.mstd-ex.
CHAPTER 4 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Step 5. Add host for second zone and map its services. HP SA9200/config/dns/zones/div2.mstd-ex.com/ hostnames# create www Host www created HP SA9200/config/dns/zones/div2.mstd-ex.com/ hostnames/www# method flash Load Balancing Method set to flash HP SA9200/config/dns/zones/div2.mstd-ex.com/ hostnames/www# siteservices HP SA9200/config/dns/zones/div2.mstd-ex.com/ hostnames/www/siteservices# map site1:10.1.3.
CHAPTER 4 Scenario 2 Are you sure you want to commit the configuration (yes|no) ? yes Configuration has been committed Step 7. Configure the Secondary SA9200s. For this scenario the primary SA9200 is the SA9200 located at site1. All of the other SA9200s are secondaries to this single primary. For details on how to configure a secondary see Scenario 1, Part 1, Step 7. Step 8. Delegate authority to the SA9200s.
CHAPTER 4 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Notes 54
Boot Monitor The SA9200 Boot Monitor Command Line Interface (CLI) allows you to configure boot options and manage boot configuration files. Typically, the Boot Monitor is used only during initial configuration or major reconfigurations, should the latter become necessary. Dayto-day operations are managed with the CLI. See Chapter 2, “Theory of Operations,” for an overview of SA9200 operations. See Chapter 6, “CLI Reference,” for details on specific commands.
CHAPTER 5 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide • Serial terminal emulation program such as Terminal or HyperTerminal* for Windows* NT or HyperTerminal for Windows 95 or 98. • Cable and connector to match male DTE connector (DB-9). Accessing the Boot Monitor NOTE: After configuring the SA9200 in the Boot Monitor, you must enable autoboot for the device to boot into normal operating mode.
CHAPTER 5 Accessing the Boot Monitor Boot Monitor Command Reference The Boot Monitor contains the following commands: Command Description autoboot Used to enable or disable the Autoboot function. When Autoboot is enabled, during startup the SA9200 prompts you to press any key to enter the Boot Monitor command line interface. If you ignore the prompt, startup concludes with the SA9200 in normal operating mode (displaying the HP SA9200# prompt).
CHAPTER 5 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command Description boot Boots the SA9200 using a specified configuration. NOTE: Userentered names and IP addresses in the example are for illustrative purposes only. The appropriate values for your installation may vary. Example: monitor>boot Current active configuration ---------------------------Product: HP_SA9200 Version: 3.0 Patch Level: 0.
CHAPTER 5 Accessing the Boot Monitor Command Description dir Displays the list of saved boot configuration files. Example: monitor>dir File name ----------*default.cfg dhcp Enables or disables the use of DHCP by the SA9200. When DHCP is enabled, the SA9200 receives its configuration parameters from the DHCP server at startup. When DHCP is disabled, the SA9200 ignores the DHCP server, and so must be manually configured at startup. Respond to the prompt with y to enable, respond with n to disable.
CHAPTER 5 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command Description factory_reset Resets the system to factory defaults. Values affected by this command are: NOTE: factory _reset does not delete saved configuration files. CAUTION: This command rewrites the default configuration to the default.cfg configuration file.
CHAPTER 5 Accessing the Boot Monitor Command Description help Lists all Boot Monitor commands or optionally displays syntax for a specified command.
CHAPTER 5 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command Description info Displays the current boot configuration. Example: monitor>info Current active configuration ---------------------------Product: HP_SA9200 Version: 3.0 Patch Level: 0.0 Build: D18 ---------------------------Current time: Thu Mar 31 12:04:39 2000 Current Config: default.cfg Hostname: www Using DHCP: No IP Address: 10.1.1.11 Netmask: 255.255.254.0 Default Route: 10.1.1.1 Domain: xyz-ex.
CHAPTER 5 Accessing the Boot Monitor Command Description nic Configures network interface card (NIC) parameters. Assurance of compatibility with some older switches, hubs, or routers, may require that you directly specify the Ethernet speed and duplex mode of the network interface card for the SA9200. The nic command, available at the serial console, allows you to specify these characteristics.
CHAPTER 5 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command Description settime Configures the date and time of the SA9200. One way to configure this is by using the Network Time Protocol (NTP). The user is prompted if NTP should be used, and is then prompted for IP addresses of the NTP servers. Be sure that the selected NTP servers are a reliable source for NTP time and that the NTP server latency is less than 20 milliseconds.
CHAPTER 5 Accessing the Boot Monitor Command Description setup Initiates the setup procedure of the SA9200. The system displays prompts for all inputs necessary to initialize system. Example: monitor>setup Auto config NIC card? [n] --->y Done Ether config: auto Enter hostname [nsb-9] ---> Autoboot? [enable] ---> Enable DHCP? [n] ---> Enter domain (’-’ to delete) [mysite_ex.com] ---> Primary name server (’-’ to delete) [10.1.1.
CHAPTER 5 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Notes 66
CLI Reference The HP Multi-Site Traffic Director Server Appliance SA9200 is fully configurable through the Command Line Interface (CLI). The CLI is accessible either through Telnet to the SA9200, or the serial port. Commands exist in a logical hierarchy. This chapter contains a summary command list, illustrations of the command tree structure, and a comprehensive reference with descriptions of all commands, their parameters, and if applicable, examples of their output display.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide CTRL-A Move insertion point to beginning of line CTRL-B Move insertion point back one character CTRL-C Prompts to stop the currently running function CTRL-D Delete character under cursor CTRL-E Move insertion point to end of line CTRL-F Move insertion point forward one character CTRL-H Backspace CTRL-L- Show all possible completions of the current command branch at the current level CTRL-L Clear screen CTRL-
CHAPTER 6 Command History Esc-> Go to end of Command History Esc-Backspace or Esc-CTRL-H Delete previous word Esc-B Move insertion point back one word Esc-C Capitalize letter and move to end of word Esc-D Delete from cursor to end of word Esc-F Move insertion point forward one word Esc-L Make letter lower case and move insertion point to end of word Esc-U Capitalize entire word Insert Toggle insertion mode (insert or overwrite) Key Combinations Command History The SA9200’s CLI records r
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Pipes Any command can be piped to either grep or more. • Output display of commands piped to grep is limited to lines containing . • Output of commands piped to more appears a page at a time for easier readability. • Pipes can be cascaded (typically with a final pipe to more). Example: config sys info | grep telnet | more NOTE: Do not enclose the search target in quotes.
CHAPTER 6 Command Line Syntax Command Line Syntax This chapter uses the following syntax when referring to CLI commands. Angled brackets (<>) Angled brackets designate where you enter variable parameters. Straight brackets ([ ]) Choices of parameters appear between straight brackets, separated by vertical bars. Braces ({}) Optional commands or parameters appear between braces. Bold Commands shown as they are entered after the CLI prompt appear in bold type.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide CLI Command Summary This section contains diagrams and lists of the SA9200’s CLI commands categorized by function. Complete details of CLI commands appear in the command reference section of this chapter. Objects and Parameters The following figures illustrate the show and config branches of the CLI-configurable objects and their relationships to one another within the SA9200.
CHAPTER 6 Objects and Parameters ROOT config show commands info cli info login-attempts port more prompt screenlines telnet-sessions timeout users username delete dns info stats info all stats all status log primary secondary sys info software info boot delete install logs display display-old secondary any flash list create delete info ssh info enable disable flash agents info stats create delete rename info enable disable aliasing max-delay poll-interval num-polls drop-miss info stats creat
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Global & CLI System Commands ? ! or h !! … | grep … | more arp back (also box, top, toplevel) box (also back, top, toplevel) commit all commit local clearstats dbpr exit (also logout, quit) factory-default halt help history info logout (also exit, quit) netstat nslookup ping quit (also exit, logout) reboot revert start-wizard top (also back, box, toplevel) toplevel (also back, top, box) traceroute who 74
CHAPTER 6 Objects and Parameters File Management Commands cat copy dir get put remove restore restore-verbose save Configuration Commands NOTE: The config info commands display uncommitted configuration information that is inactive. The show info commands display the active configuration information. A commit command is necessary before any config commands become active, after which the show info and config info commands displays matching information.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide config sys software info install boot delete config sys secondary info any flash list create delete config sys ssh info enable disable config sys wizard info enable disable SNMP Commands config sys snmp info port auto-topology sysContact sysLocation sysName community info community create community delete trap info trap port trap create trap delete 76
CHAPTER 6 Objects and Parameters DNS Commands config dns info info all stats stats all status log primary secondary config dns agents info stats metrics create delete rename config dns agents info stats metrics enable disable agent-ip agent-port interval timeout flash-src flash-port flash-backup-src flash-backup-port 77
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide config dns agents services info stats enable disable standby create delete rename config dns agents services info stats enable disable standby weight factor config dns isvgroups info create delete rename config dns isvgroups info stats enable disable interval timeout flash-src flash-port flash-backup-src flash-backup-port 78
CHAPTER 6 Objects and Parameters config dns isvgroups services info stats enable disable standby create delete rename config dns isvgroups services info stats enable disable standby weight method url config dns zones info stats create delete rename config dns zones info stats create-authority delete-authority authority-ttl config dns zones hostnames info stats create delete rename 79
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide config dns zones hostnames info stats ttl method authority add-rec-responses multi-vip-standby enable multi-vip-standby disable config dns zones hostnames siteservices info stats map unmap config dns zones hostnames siteservices info stats enable disable standby weight factor config dns flash info enable disable aliasing max-delay poll-interval num
CHAPTER 6 Objects and Parameters Show Commands show dns info stats info all stats all status flash info show dns agents info stats metrics metrics port show dns agents info stats metrics metrics port show dns agents services info stats show dns agents services info stats show dns isvgroups info show dns isvgroups info stats show dns isvgroups services info stats show dns isvgroups serv
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide show dns zones info stats show dns zones hostnames info stats show dns zones hostnames info stats show dns zones hostnames siteservices info stats show dns zones hostnames siteservices info stats show sys info date ntp info secondary info snmp info ssh info logs display logs display-old software info wizard info show cli info
CHAPTER 6 Global & CLI System Commands Global & CLI System Commands Command Description ? Displays all the commands at the command level. ! (also h) Executes the history command. !! Repeats the last command. arp Displays the ARP table. back (also ..) Moves up one level in the CLI command tree. box (also top) Moves back to the beginning (root level) of the CLI branch command tree. clearstats Clears all statistical information.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command Description dbpr Displays information on the active configuration down to the agent VIP level. This command is useful for assessing the effectiveness of the current balancing settings. Options consist of a hyphen and letter followed by a user-specified parameter or parameters. Syntax: dbpr [host | agent | flash] {options} where: host specifies that the command is to display information from a specified host.
CHAPTER 6 Global & CLI System Commands Command Description dbpr (cont’d) Displays a single VIP- the one associated with host www.fooex.com whose IP address is 10.234.2.2 and is on the load balancer at 10.168.16.3:1999 -c causes the referral statistics associated with all displayed VIPs to be cleared following the display. exit Exits the CLI. factory-default Resets the SA9200 to its original factory configuration. Original factory settings are listed below.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command Description info Information is displayed one page at a time if the file size is greater than 500K even when more (‘paging’) is disabled. This info command (at the root level) displays only current configurations, i.e., ‘committed’ changes (performed in the Config branch). This is the same information displayed from info commands on the Show branch of the CLI commands.
CHAPTER 6 Global & CLI System Commands Command Description more Pauses the screen after displaying a full screen until the key is pressed. See the section entitled Pipes earlier in this Chapter. netstat Displays the SA9200’s routing tables. nslookup Performs an nslookup of the specified IP address or hostname Syntax:: nslookup where: • ipaddr is the IP address • standard 8.5 X 11" is the name of the host ping Tests the network connection to another networking device.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command Description traceroute Displays the route that packets travel to the network host. who Displays the list of all users currently logged in. Global & CLI System Commands File Management Commands Command Description cat Displays contents of the specified saved configuration file. Syntax: cat where: filename is the name of the file to be displayed. copy Copies an existing configuration file to a new file.
CHAPTER 6 File Management Commands Command Description get Retrieves a configuration file from a TFTP server. Because the TFTP protocol has no user-login or validation, sites employing it typically enforce some file access restrictions. Such restrictions are specific to each site and vary widely in scope and methods. Syntax: get where: TFTP URL is the address of the tftp server from which you wish to retrieve the configuration file Example: get tftp://10.168.30.2/ tftpboot/get.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command Description restore Restores a CLI configuration from a previously saved file. (See save.) Syntax: restore where: filename is the name of the configuration file to be restored. (The default file name is default.cfg.) Execute the command commit local or commit all to activate the restored configuration. restore-verbose As restore above, but displays each line of the restored file.
CHAPTER 6 Configuration Commands Configuration Commands Config CLI Commands Command Description config cli Changes the prompt level to config cli. info Displays the status of all variables at the config cli level.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command login-attempts Description Allows you to specify the maximum allowable number of failed login attempts before closing the connection on a Telnet session. Syntax: config cli login-attempts where: tries is a number from 1 to 30. more NOTE: If information is greater than 500,000 bytes, the display is automated to display one page at a time.
CHAPTER 6 Command telnet-sessions NOTE: If you set the number of sessions to 0, you are disabling all future Telnet sessions to the SA9200. To reset Telnet, you must access the device through the serial port and login, then change the Telnet session count from 0, to a number from 1 to 8 timeout NOTE: Too small of a timeout value renders the CLI useless. Configuration Commands Description Sets the allowable number of concurrent inbound remote CLI login sessions.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command username NOTE: Username commands are not valid in configuration files, i.e., save config and restore config operations do not include username data. users Description Adds or updates the login or password. Syntax: To add or update a user: config cli username password level where: name is the login name. (Must be from four to sixteen characters with no spaces.
CHAPTER 6 System Commands System Commands Config Sys Commands Command Description config sys Changes the prompt level to the System Config branch. info NOTE: The default route is the same as the default gateway. logs display Displays the SA9200’s current system information. For example: System Id: MAC Address: IP Address: Netmask: Broadcast: Default Route: Nameservers: Domain name: 0:90:27:73:f0:e4 10.1.10.227 255.255.0.0 10.1.255.255 10.1.1.1 10.1.1.10 mysite-ex.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command ntp create NOTE: If you selected Flash load balancing in the Quick Start Wizard, you need to configure NTP. ntp delete Description Adds an NTP server. Syntax: ntp create where: ntpserver is the fully qualified hostname or the IP address of the Network Time Protocol Server. Deletes an NTP server.
CHAPTER 6 Command install NOTE: Save your configurations before installing or booting a new image. Up to five (5) images can be installed on a SA9200. boot NOTE: Save your configurations before installing or booting a new image. delete System Commands Description Download and install SA9200 software through the FTP protocol. Once installed, images are selected for execution by using the command, config sys software boot.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command Description config sys secondary Changes the prompt level to the config sys secondary branch. NOTE: The secondary commands do not need to be committed to become active (they are in effect for any future connection attempts). info Displays information about which secondary SA9200s can connect. any Allows any secondary SA9200 to connect to the primary SA9200. This command is executed on the primary SA9200.
CHAPTER 6 System Commands Command Description config sys wizard Changes the prompt level to the config sys wizard branch. info Displays information about whether the Wizard is enabled or disabled. By default, Wizard is enabled. enable Enables the Quick Start Wizard. The Quick Start Wizard is an automated, interactive method to configure the SA9200. It is available only through the serial port if enabled after Boot Monitor. disable Disables the Quick Start Wizard.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command sysLocation Description Allows you to specify a value for the MIB-II variable sysLocation. The default is null. Syntax: config sys snmp sysLocation where system location is a string of displayable characters. sysName Allows you to specify a value for the MIB-II variable sysName. The default is the hostname of the SA9200.
CHAPTER 6 Command trap info trap port System Commands Description Displays the trap receiver list of: • Trap ID Address • Trap Community Specifies the trap port number. The port number is between 5020 and 65535. Default is 162. Syntax: config sys snmp trap port where trap port is the designated number. trap create Allows you to specify the host to which SA9200 sends SNMP traps. Up to 10 trap receivers can be created.
CHAPTER 6 DNS Commands HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Config DNS Commands Command Description config dns Moves you to the config dns command level. info Displays DNS information. For example. DNS Information Running as a Primary Logging is Disabled info all Displays all DNS information.
CHAPTER 6 Command stats DNS Commands Description Displays the status of this SA9200 and any connected secondary SA9200s. For example: Queries: 0 Referrals: 0 Unknown Zones:0 Malformed: 0 Queries/Sec: 0 Avg Queries/Sec: 0 Refused: 0 Unknown Hosts: 0 Unsupported: 0 Queries - Total number of DNS queries received. Referrals - Total number of times that a particular service or group of services have been returned as the answer to a query.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command Description status If the SA9200 is a primary, Displays the secondary SA9200(s) to which it is currently connected. If the SA9200 is a secondary, Displays the connection status to its primary. log Enables or disables logging. When logging is enabled, the DNS server logs details of the incoming queries, the balancing process for VIP selection, and the query response to the log file. Default: disabled.
CHAPTER 6 DNS Commands Config DNS Agents Commands Command Description config dns agents Changes the prompt to the config dns agents command level. info Displays the configuration information of all agents in the SA9200. Each SA9200 may have up to 16 agents configured. For example: Agent: 10.1.2.8 State: Enabled Metrics Interval: 30 Metrics Timeout: 15 Agent IP: 10.1.2.
CHAPTER 6 Command metrics HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Description Displays metrics information of all configured agents. If an IP address and a port number are specified, metrics for that agent is obtained. config dns agents metrics port where an optional agent IP address port can be specified, otherwise all metrics are returned. The standard agent port is 1999.
CHAPTER 6 Command rename DNS Commands Description Changes the agent’s current name to the name specified in the command line. Syntax: config dns agents rename new where: agentname (1) is the current name of the agent whose name you wish to change. agentname (2) is the new name to be assigned to the agent. config dns agents info Changes the prompt to the config dns agents command level. Displays configured information of the specified agent.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command metrics Description Displays metric information for the specified agent. Syntax: config dns agents metrics where: agentname is the name of the agent whose metrics you want to display.
CHAPTER 6 Command interval DNS Commands Description Configures the interval at which metrics are gathered from the specified agent. The default is 30 seconds. Syntax: config dns agents interval where: agentname is the name of the agent whose metric-gathering interval you wish to set. seconds is an integer between 1 and 300 seconds. timeout Sets the length of timeout waited before assuming the metric interval has failed. The default is 15 seconds.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command flash-backup-src Description Configures a backup source address to which queries are routed, in the event of this SA9200 not being functional. Syntax: config dns agents flash-backup-src For example: config dns agents 10.1.1.1 flash-backup-src 10.1.1.3 flash-backup-port Configures the port number with which the backup flash source communicates with its known peers. The default port number is 2000.
CHAPTER 6 Command stats DNS Commands Description Displays statistics for all services for the specified agent. Syntax: config dns agents services stats For example: enable Service: 10.1.2.8:90 (0 Servers) Referrals: 0 Flash Referrals: Response Time: 0 Connections/Sec: 0 0 Service: 10.2.2.3:80 (0 Servers) Referrals: 0 Flash Referrals: Response Time: 0 Connections/Sec: 0 0 Enables all services for all hosts which currently map to them.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command rename Description Renames an existing service. Syntax: config dns agents rename new For example, to change the port number as part of a service name: rename 10.1.2.8:80 new 10.1.2.8:90 config dns agents services info Changes the prompt to the config dns agents services command level for a specific service.
CHAPTER 6 Command weight DNS Commands Description Sets a weight of an agent service. Services with higher weight are favored over services with lower weight. Syntax: weight where weightnumber is between 1 and 255. Default is 1. factor Sets the threshold for an agent service based on the load balancing method (CPU/AVGRESP/LEAST CONN). Syntax: factor Where: factornumber is between 1 and 255.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command create Description Creates an ISV group name. ISV name is the hostname of any generic load balancer that you wish to configure. Syntax: create For example: create isv2 Creates the ‘isv2’ group. delete Deletes a configured ISV group, specified by the ISV name. Syntax: delete For example: delete isv2 Deletes the ‘isv2’ group.
CHAPTER 6 Command DNS Commands Description enable Enables the ISV group for all services under it. All ISV groups are enabled by default. disable Disables the specified ISV group. Services under this ISV group are not available after disabling. interval Configures the interval at which metrics are gathered from the specified service. The default is 30 seconds.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command flash-backup-src Description Configures a backup source address to which queries are routed, in the event of this SA9200 not being functional. The backup source address is the IP address of another SA9200 or a load balancer with a flash-agent configured. For example: flash-backup-src 10.1.1.
CHAPTER 6 DNS Commands Command Description config dns isvgroups services Changes the prompt to the config dns isvgroups services level for a specific ISV service of a specific ISV group. info Displays information, and limits information to one specified service. For example, a display could be: Service: 10.10.9.8:80 Service IP: 10.10.9.8 Service Port: 80 Probe Method: none stats Displays statistical information for the specified service.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Config DNS Zones Commands Command Description config dns zones Changes the prompt to the config dns zones level. info Displays the names of all configured zones under this SA9200. To display the names of committed zones only, use the command show dns zones info. Example: Zone: ns1.zone1.com Authority Records TTL: 86400 Authority Name: ns1a.zone1.com Authority IP: 10.6.1.199 Authority Name: ns1b.zone1.com Authority IP: 10.6.5.
CHAPTER 6 Command create DNS Commands Description Creates a zone. Zone names may not exceed 253 characters, (allowing at least one character for a hostname and one for the “.” between the host name and the zone name. Up to 300 zones can be created. Zone names must be unique. Valid zone name characters are: • Alphanumerics (case insensitive) • Dot (.) • Hyphen (-) Syntax: config dns zones create where: zonename is the name of zone to be created. Example: mysite-ex.
CHAPTER 6 Command info HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Description Displays configuration information for the current zone. Syntax: config dns zones info where: zonename is the name of the zone whose configuration information you wish to view. Information displayed: • Zone name • Authority TTL • Authority records (Authority Name and IP address) • Names of all hosts configured under this zone. Example: Zone: ns1.zone1.
CHAPTER 6 Command stats DNS Commands Description Displays the statistical information of the specified zone. Syntax: config dns zones stats where: zonename is the name of the zone whose statistical information you wish to view. Example: Zone: mysite-ex.com Queries: 0 Referrals: 0 Host: host1.com Queries: 0 Referrals: 0 Information displayed: create-authority • Number of Queries and Referrals of the specified zone.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command delete authority Description Deletes the specified authority record for the specified zone. Syntax: config dns zones delete-authority ip where: zonename is the name of the zone from which you wish to delete an authority record. authority name is the name of the authority record you wish to delete.
CHAPTER 6 Command info DNS Commands Description Displays all hostnames under the specified zone. Syntax: config dns zones hostnames info where: zonename is the name of the zone whose hostnames you wish to view.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command create NOTE: When entering the hostname, do not include the zonename or the dot between the host and zone name. These are appended automatically. (Host and zonenames together may not exceed 255 characters.) Description Creates a host under the specified zone. Up to 512 hosts may be created.
CHAPTER 6 Command rename DNS Commands Description Renames the specified host under the specified zone. Syntax: config dns zones hostnames rename new where: zonename is the name of the zone under which you wish to rename a host. atypehostname (1) is the current name of the host you wish to rename. The wildcard (*) and null (@) symbols can be substituted as a valid host name.
CHAPTER 6 Command stats HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Description Displays the statistics information for the specified host in the specified zone. Syntax: config dns zones hostnames stats where: zonename is the name of the zone of the host whose statistics you wish to view. hostname is the name of the host whose statistics you wish to view. Information displayed: Host: host1.com Queries: 0 Referrals: 0 Site Service: site1:10.6.1.
CHAPTER 6 Command ttl DNS Commands Description Configures the Time to Live (TTL) value, in seconds, for the specified zone/host. TTL is expressed an integer greater than or equal to zero and less than or equal to 65,535. Syntax: config dns zones hostnames ttl where: zonename is the name of the zone of the host for which you wish to set the TTL. hostname is the name of the host for which you wish to set the TTL. number is the desired TTL value expressed in seconds.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command authority Description If enabled, designates this SA9200 as authoritative for the specified host. Default: enabled. Syntax: config dns zones hostnames authority [enable|disable] where: zonename is the name of the zone in which the host is located for which this SA9200 is to be authoritative. hostname is the name of the host for which this SA9200 is to be authoritative.
CHAPTER 6 Command DNS Commands Description map Maps the combination of an agent and a service or an ISV name and service with the specified hostname. siteservicename = agentname:vip:port or siteservicename = isvname:vip:port unmap Removes the mapping of a service to this hostname. config dns zones hostnames siteservices Changes the prompt to the config dns zones hostnames siteservices command level.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Config DNS Flash Commands Command Description config dns flash Changes the prompt to the config dns flash command level. info Displays flash configuration information.
CHAPTER 6 Command DNS Commands Description aliasing Enables or disables IP aliasing. The show dns flash info command displays whether aliasing is enabled or disabled. max-delay Sets the maximum time delayed before a response is returned, setting the maximum tolerated network latency between peer Flash agents. Default value is 5000ms. Range is 0 to 30,000ms.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Show Commands Command Description show dns Changes the prompt to the show dns command level. info Displays DNS information pertaining to this SA9200. Information displayed: • Status, primary / secondary • If secondary, the primary IP • Logging enabled / disabled stats Displays DNS statistical information: Queries - Total number of DNS queries received.
CHAPTER 6 Command Show Commands Description stats all Displays the DNS Statistics (see stats command for definitions), and all SA9200 information for all configured Agents, Services, ISV Groups, Zones, Hosts, and Flash Information. status If the SA9200 is a primary, it displays the secondary SA9200s to which it is currently connected. If the SA9200 is a secondary, it displays the connection status to its primary. flash info Displays flash information, including whether flash aliasing is on or off.
CHAPTER 6 Command info HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Description Displays information for all configured agents. Information displayed: Agent: load1 State:Enabled Metrics Interval:30 Metrics Timeout:15 Agent IP: 10.1.2.8 Agent Port: 1999 Primary Flash Src: Not Defined Primary Flash Port: 0 Backup Flash Src: Not Defined Backup Flash Port: 0 Agent: load2 State:Enabled Metrics Interval:30 Metrics Timeout:15 Agent IP: 10.2.2.2 Agent Port: 1999 Primary Flash Src: 10.2.2.
CHAPTER 6 Command metrics port Show Commands Description Displays metrics for the specified unconfigured agent. If specified agent does not exist or if a connection cannot be established, an error message appears.
CHAPTER 6 Command info HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Description Displays information about the specified agent. Information displayed: Agent: load1 State:Enabled Metrics Interval:30 Metrics Timeout:15 Agent IP: 10.1.2.8 Agent Port: 1999 Primary Flash Src: Not Defined Primary Flash Port: 0 Backup Flash Src: Not Defined Backup Flash Port: 0 Services: 10.6.1.208:80 10.6.1.
CHAPTER 6 Command metrics Show Commands Description Displays metrics information for a single specified agent. Syntax: show dns agents metrics Information displayed is: • Agentname • Agent Version Number • Agent State • CPU Utilization • Average Connections per Second • All services configured for this agent. For example: Agent: load2 (Version Unknown) State: Connected CPU Util:0% Connections/Sec:0 Service: 10.5.5.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command metrics port Description Displays metrics for the specified unconfigured agent. If specified agent does not exist or if a connection cannot be established, an error message appears.
CHAPTER 6 Show Commands Command Description show dns agents services Changes the prompt to the show dns agents services command level. info Displays configuration information of the specified service name. stats Displays statistical information of a configured service. show dns isvgroups info Changes the prompt to the show dns isvgroups command level.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command stats Description Displays all statistical information within the specified ISV Group, such as Services and their respective statistics. For example: Service: 10.4.4.4:80 Referrals: 0 Flash Referrals: 0 Response Time: show dns isvgroups services Changes the prompt to the show dns isvgroups services command level to display information and statistics for a particular isv group service.
CHAPTER 6 Command stats Show Commands Description Displays the statistics on all zones committed under this SA9200. Zone names are displayed followed by the number of resolutions for each. For example: Host: host1.com Queries: 0 Referrals: 0 Site Service: site1:10.6.1.201:80 (No Connection, Enabled) Referrals: 0 Flash Referrals: 0 Response Time: -1 Connections/Sec: -1 Site Service: site2:10.6.5.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command Description show dns zones hostnames Changes the prompt to the show dns zones hostnames command level to display information and statistics for all hostnames. info Displays all hostnames under the specified zone.
CHAPTER 6 Command info Show Commands Description Displays committed hostname, the load balancing method, the TTL, the authority of the specified host, and any site services.
CHAPTER 6 Command stats HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Description Displays the statistics of the specified hostname. Syntax: show dns zones hostnames stats Host: host1.com Queries: 0 Referrals: 0 Site Service: site1:10.6.1.201:80 (No Connection, Enabled) Referrals: 0 Flash Referrals: 0 Response Time: -1 Connections/Sec: -1 Site Service: site2:10.6.5.
CHAPTER 6 Show Commands Command Description show dns zones hostnames siteservices Changes the prompt to the show dns zones hostnames siteservices command level for information and statistics for a particular site service. info Displays information of all site services configured under this zone and hostname. stats Displays statistical information of all site services for the specified zone and hostname.
CHAPTER 6 Command snmp info logs display HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Description Displays the status of the SNMP-related variables. Information displayed: • SNMP (enabled/disabled) • Auto-topology (enabled/disabled) • SNMP agent port • SysName • SysContact • SysLocation Displays the contents of the specified log file.
CHAPTER 6 Command software info Show Commands Description Displays information regarding installed software. The list of installed software images includes: • Image index number of each installed version • Product description of each installed version • Version number of each installed version • Patch number, if any • Build numbers of each installed version • An indicator (‘Running’) of which version is currently running. ssh info Displays the current status of SSH enable or disable.
CHAPTER 6 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Command Description show cli Changes the prompt to the show cli command level. info Displays the CLI configuration.
SNMP Support The SA9200 has a fully compliant, embedded SNMP agent that supports SNMPv1 and SNMPv2c requests. In addition to standard MIB-II, HP private enterprise MIBs provide the capabilities to monitor the performance and health of the SA9200. Standards Compliance The SNMP agent is bilingual and can support both SNMPv1 and SNMPv2c requests. All traps are sent in SNMPv2c format. HP private enterprise MIB files are compliant with SMIv2 as specified in RFC 1902.
CHAPTER 7 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide HP MIB Tree All HP enterprise MIBs and MIB objects are defined under the mib2ext branch of the HP tree. All sysObjectIds that identify HP products are defined under the directors branch of the MIB tree. The following illustrates the MIB tree.
CHAPTER 7 Supported MIBs Supported MIBs Management Information Base-II (MIB-II) HP Enterprise MIBs: hpserver-header.my hpmultisite-mib.my Where to find MIB Files Electronic copies of the MIB files used by the SA9200 are shipped with the product on CD-ROM and are available from the HP customer support Web site at http://www.hp.com/serverappliances/ support.com. The standard SNMP traps, coldStart, warmStart, authenticationfailure, linkUp and linkDown are supported. hpserver-header.my hpserver-header.
CHAPTER 7 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide isvVipPort isvProbeType isvProbeState isvProbeProperties siteTable siteEntry siteIndex siteName Agent Metrics Group Object Description agentMetricsTable An agent runs in a load balancer (i.e., SA8200 & SA8220) which communicates with the SA9200. The agentMetricsTable conains load balancer performance data reported by the agent to the SA9200.
CHAPTER 7 Service Metrics Group Service Metrics Group Object Description serviceMetricsTable An agent runs in a load balancer which communicates with the SA9200. The serviceMetricsTable contains load balancer performance data reported by the agent to the SA9200 pertaining to service (VIP and port). serviceMetricsEntry Each entry contains the last metrics information returned by a remote load balancer agent for a service (i.e, VIP and port).
CHAPTER 7 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide ISV Metrics Group Object Description isvTable List of ISV entries. The number of entries is given by the value of the siteNumber. isvEntry An ISV entry containing VIP objects. isvIndex A unique value for each ISV. Its value ranges between 1 and the value of siteNumber. isvVipAddr IP address that is used for probing. isvVipPort Server TCP port number. isvProbeType ISV probe type can be Ping, TCP or HTTP.
CHAPTER 7 Site Group Site Group Object Description siteNumber The number of SA9200 ISVs and agents, regardless of their current state, present on this system. siteTable List of agents and ISV entries. The number of entries is given by the value of siteNumber. siteEntry Site entry containing agent name or ISV name. siteIndex A unique value for each site, ranging between 1 and the value of the siteNumber siteName The agent name or ISV name.
CHAPTER 7 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide isvProbeHttpUrlNormal isvProbeHttpUrlAlert Object Description msdConnState Connection state of the SA9200. A primary SA9200 always has the state primary. A secondary SA9200 can have the state connected, refused or retrying, indicating its connection state to its primary SA9200. shuttingDown SA9200 is shutting down. configurationChanged SA9200 configuration has changed.
CHAPTER 7 Configuring Trap Parameters Configuring Trap Parameters Use the following CLI commands to display and configure SNMP trap parameters: config sys snmp trap info config sys snmp trap port config sys snmp trap create community config sys snmp trap delete community By default, the UDP port used for sending traps is 162. The trap port can be changed to a number between 5020 and 65535, or left at 162.
CHAPTER 7 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide For example: config sys snmp community create test ip 209.218.240.5 rights ro This command creates the community string test with read-only privilege. SNMP read-only requests using community string test are accepted only from IP address 209.218.240.5.
CHAPTER 7 Configuring Other SNMP Parameters Displaying SNMP Parameters NOTE: Ensure that the SA9200’s IP Filtering security mechanism allows IP access to SNMP, otherwise SNMP requests do not pass through the filter.
CHAPTER 7 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Notes 160
Software Updates Your SA9200 unit is shipped with the latest system software installed. After initial installation and setup, you may be eligible for, or choose to purchase a software version update. This chapter describes the update procedure. Multiple Software Images The SA9200 provides sufficient local storage for at most five software images (though at any time, only one image is active and executing.
CHAPTER 8 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Saving Your Current Configuration NOTE: Username commands are not valid in configuration files, i.e., save config and restore config operations do not include username data. SA9200 configurations are by default preserved across major software updates. It is however recommended that you save your existing SA9200 configuration while running your currently installed software.
CHAPTER 8 Rebooting with the New Image and Verifying Installation Rebooting with the New Image and Verifying Installation NOTE: If any errors occurred during installation, show sys software info may display the image as installed, however it is not safe to use. Use config sys software delete to delete the image and repeat the installation before continuing. If the problem persists, contact HP Technical Support.
CHAPTER 8 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Notes 164
Diagnostics This section describes the available diagnostic information and infield diagnostics procedures for the SA9200. Diagnostic LEDs The front panel’s LEDs provide information generated by the boottime power-on-self-test (POST) and application startup sequences. There are four LEDs on the front panel, as shown.
APPENDIX A HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Power Indication The front panel Power LED connects directly to the unit’s power supply. If the Power LED is not illuminated, power is not connected to the unit, or the unit’s power supply has failed. Boot-time LED Diagnostics The front panel’s Status, Act 1 and Act 2 LEDs display the transition through a sequence of codes at boot time indicating the product’s progress through the boot process.
APPENDIX A Runtime LED Diagnostics Runtime LED Diagnostics Runtime Activity At runtime, the LEDs provide information about system activity as described below. Status LED • Blinks on and off quickly when operating normally. • Continuous on or off indicates troubled (hung) system.
APPENDIX A HP Multi-Site Traffic Director Server Appliance SA9200 User Guide System Log The system log contains diagnostic messages from various software modules of the SA9200. The system log memory is of limited size (512K bytes) and wraps around when the allocated space has been filled up. Log Message Format There are five components to each log message in this file. (Date) (Time) (Hostname) (Module) (Text) Aug 2 14:28:03 mstd1 DNSD: Starting..
APPENDIX A System Log DNSD: The DNS Server Daemon process This process logs a message when it is started and when reading in the configuration. Severe or fatal errors are logged with a preceding “ERROR”. Others messages may be logged with or without “WARNING” based on the nature of the event. Example: This message is logged when the dns server is started. Aug 2 14:28:03 madagascar DNSD: Starting SA9200 DNS Server This message is logged when the dns server reads the configuration file at boot time.
APPENDIX A HP Multi-Site Traffic Director Server Appliance SA9200 User Guide NCA (Network Configuration Application) This process is in charge of connecting to and talking to the agents resident on an HP Traffic Director. It also connects to and talks to the dns server and the backed process. It is the NCA that updates configuration information of the dns server every time user types a commit command. Some of the messages that are logged by the NCA are: Aug 2 12:13:27 madagascar NCA: NCA has started.
APPENDIX A System Log Aug 2 12:13:33 madagascar BACKEND: Reading in configuration... Aug 2 12:13:33 madagascar BACKEND: ***Backend is ready for the user* When there is an error reading the configuration file, these errors are logged specifying the error and the line where it occurred. DNS_STATS Daemon This daemon is in charge of collecting statistics from the dns server. Every 15 minutes DNS_STATS module logs the number of queries that were made since the last log write.
APPENDIX A HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Notes 172
Cleaning the Dust Filter The HP Multi-Site Traffic Director Server Appliance SA9200 has a dust filter element mounted behind the front grille and in front of the dual intake fans. This filter is washable and should be cleaned every six months at a minimum. If you use your SA9200 in an abnormally dusty environment, clean the filter more often. You need not interrupt SA9200 operation to perform the following cleaning procedure.
APPENDIX B HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Notes 174
Regulatory Information Taiwan Class A EMI Statement
APPENDIX C HP Multi-Site Traffic Director Server Appliance SA9200 User Guide VCCI Statement Class A ITE This is a Class A product based on the standard of the Voluntary Control Council for Interference by Information Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio disturbance may arise. When such trouble occurs, the user may be required to take corrective actions. WARNING: This is a Class A product.
APPENDIX C Canada Compliance Statement (Industry Canada) • To the extent possible, relocate the radio, TV, or other receiver away from the product. • Plug the product into a different electrical outlet so that the product and the receiver are on different branch circuits. If these suggestions don’t help, consult your dealer or an experienced radio/TV repair technician for more suggestions. NOTE: This device complies with Part 15 of the FCC Rules.
APPENDIX C HP Multi-Site Traffic Director Server Appliance SA9200 User Guide CISPR 22 Statement WARNING: This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.
APPENDIX C WARNING WARNING The system is designed to operate in a typical office environment. Choose a site that is: • Clean and free of airborne particles (other than normal room dust). • Well-ventilated and away from sources of heat including direct sunlight. • Away from sources of vibration or physical shock. • Isolated from strong electromagnetic fields produced by electrical devices.
APPENDIX C HP Multi-Site Traffic Director Server Appliance SA9200 User Guide AVERTISSEMENT Le système a été conçu pour fonctionner dans un cadre de travail normal. L’emplacement choisi doit être: • Propre et dépourvu de poussière en suspension (sauf la poussière normale). • Bien aéré et loin des sources de chaleur, y compris du soleil direct. • A l’abri des chocs et des sources de ibrations. • Isolé de forts champs magnétiques géenérés par des appareils électriques.
APPENDIX C WARNUNG WARNUNG Das System wurde für den Betrieb in einer normalen Büroumgebung entwickelt. Der entwickelt.
APPENDIX C HP Multi-Site Traffic Director Server Appliance SA9200 User Guide AVVERTENZA Il sistema è progettato per funzionare in un ambiente di lavoro tipico. Scegliere una postazione che sia: • Pulita e libera da particelle in sospensione (a parte la normale polvere presente nell’ambiente). • Ben ventilata e lontana da fonti di calore, compresa la luce solare diretta. • Al riparo da urti e lontana da fonti divibrazione. • Isolata dai forti campi magnetici prodotti da dispositivi elettrici.
APPENDIX C ADVERTENCIAS ADVERTENCIAS El sistema está diseñado para funcionar en un entorno de trabajo normal. Escoja un lugar: • Limpio y libre de partículas en suspensión (salvo el polvo normal) • Bien ventilado y alejado de fuentes de calor, incluida la luz solar directa. • Alejado de fuentes de vibración. • Aislado de campos electromagnéticos fuertes producidos por dispositivos eléctricos.
APPENDIX C HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Wichtige Sicherheitshinweise 1. Bitte lesen Sie sich diese Hinweise sorgfältig durch. 2. Heben Sie diese Anleitung für den spätern Gebrauch auf. 3. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Vervenden Sie keine Flüssig- oder Aerosolreiniger. Am besten dient ein angefeuchtetes Tuch zur Reinigung. 4.
APPENDIX C Wichtige Sicherheitshinweise 15. Wenn folgende Situationen auftreten ist das Gerät vom Stromnetz zu trennen und von einerqualifizierten Servicestelle zu überprüfen: a. Netzkabel oder Netzstecker sint beschädigt. b. Flüssigkeit ist in das Gerät eingedrungen. c. Das Gerät war Feuchtigkeit ausgesetzt. d. Wenn das Gerät nicht der Bedienungsanleitung ensprechend funktioniert oder Sie mit Hilfe dieser Anleitung keine Verbesserung erzielen. e.
APPENDIX C HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Notes 186
Terms, Conditions and Software License ATTENTION: USE OF THE SOFTWARE IS SUBJECT TO THE HP SOFTWARE LICENSE TERMS SET FORTH BELOW. USING THE SOFTWARE INDICATES YOUR ACCEPTANCE OF THESE LICENSE TERMS. IF YOU DO NOT ACCEPT THESE LICENSE TERMS, YOU MAY RETURN THE SOFTWARE FOR A FULL REFUND. IF THE SOFTWARE IS BUNDLED WITH ANOTHER PRODUCT, YOU MAY RETURN THE ENTIRE UNUSED PRODUCT FOR A FULL REFUND. HP SOFTWARE LICENSE TERMS License Grant. HP grants you a license to Use one copy of the Software.
APPENDIX D HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Copies and Adaptations. You may only make copies or adaptations of the Software for archival purposes or when copying or adaptation is an essential step in the authorized Use of the Software on a backup product, provided that copies and adaptations are used in no other manner and provided further that Use on the backup product is discontinued when the original or replacement product becomes operable.
Support Services Support for Your SA9200 U.S. and Canada For hardware service and telephone support, contact: • An HP-authorized reseller or • HP Customer Support Center at 1-800-633-3600.
SUPPORT Europe HP Multi-Site Traffic Director Server Appliance SA9200 User Guide For hardware service and telephone support, contact: • An HP-authorized reseller or • One of the following HP Customer Support Centers: Country and Number Austria – 0660 6386 Belgium (Dutch) – 02 626 8806 Belgium (French) – 02 626 8807 Czech Republic – 420 2 613 07 310 Denmark – 3929 4099 English (non-UK) – +44 20 7512 5202 Finland – 02 03 47 288 France – 01 43 62 3434 Germany – 0180 525 8143 Greece – +30 (0) 16196411 Hun
SUPPORT Support for Your SA9200 Asia For hardware service and telephone support, contact an HPauthorized reseller or one of these support centers: Country and Number Australia – 03-8877-8000 Hong Kong – 800-96-2598 India – 91-11-6826035 Indonesia – 0800-21511 Japan – 0120-220-119 Korea – +82-2-32700911 Malaysia – 60 3 2931811 or 1-800-881811 New Zealand – Upper North Island – 09-356-6640 Lower North Island – 04-499-2026 South Island – 03-365-9805 People’s Republic of China – 86-8008105959 Philippines – 6
SUPPORT HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Latin America For hardware service and telephone support, contact an HPauthorized reseller or one of these support centers: Country and Number Argentina – (541) 4778-8380 Brazil – Sao Paulo – (11) 3747-7799 All Others – 0800-15-77-51 Chile – 800-360-9999 Columbia – 9-800-91-9477 Guatemala – 1-800-999-5305 Mexico – Ciudad de Mexico – 5258-9922 All Others – 800-472-6684 Peru – 0-800-10111 Puerto Rico – 1-877-232-0589 Venezuela – Cara
Glossary This section defines terms and acronyms used throughout the HP Multi-Site Traffic Director Server Appliance SA9200 User Guide. Agent Broker Refers to a load balancer (SA7200, SA7220, SA8200 or SA8220), specifically to the fulfillment agent on a load balancer, which communicates service availability and metric information related to the VIPs brokered by the load balancer to a SA9200. All VIPs associated with an agent share a common Flash Source.
GLOSSARY HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Flash Response Mode Flash Peer Flash Source Global Sync HTTP HTTPS IP 194 A solution to DNS site balancing based on network latency. Rather than attempt to actual measure network latency to a client DNS server, Flash DNS broadcasts separate responses simultaneously from each of the balanced sites. The response from the site with the least network latency to the client DNS server arrives first to be used.
GLOSSARY HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Load Balancer HP SA7200, SA7220, SA8200, or SA8220 Load Balancing The distribution of processing and communications activity across a computer network so that no single device is overwhelmed. Load balancing is particularly important for networks on which it is difficult to predict the volume of requests likely to be issued to a server. Busy Web sites typically employ two or more Web servers in load balancing roles.
GLOSSARY HP Multi-Site Traffic Director Server Appliance SA9200 User Guide Aliasing SSL (Secure Socket Layer) TCP/IP TTL The act of trying to appear as a legitimate packet from a trusted or expected source even though the packet actually originated at some unknown source. Protocol developed by Netscape for encrypted transmission over TCP/IP networks, setting up a secure end-to-end link. Transmission Control Protocol (TCP) utilizing IP as the base transport. DNS Time To Live.
Index Symbols autoboot 57 boot 58 delete 58 dhcp 59 dir 59 factory_reset 60 halt 60 help 61 info 62 netmask 62 nic 63 route 63 save 63 settime 64 setup 65 show 65 ! 83 !! 83 * 124, 125 ? 83 @ 124, 125 A adding load balancers 33 agents 14 associating services 20 configuring dns agents 105 creating 19, 40 algorithms metric 10 weighted 10 authoritative server 15 authority delegating 31 authority records creating 20 B boot monitor 55, 56 boot monitor commands C clearstats 83 CLI commands summary of 72 comm
INDEX HP Multi-Site Traffic Director Server Appliance SA9200 User Guide login-attempts 92 more 92 port 92 prompt 92 telnet-sessions 93 timeout 93 username 94 users 94 config commands 72 config dns agents commands 105 agent-ip 108 agent-port 108 create 106 delete 106 disable 108 enable 108 flash-backup-port 110 flash-backup-src 110 flash-port 109 flash-src 109 info 107 interval 109, 115 metrics 108 rename 107 services delete 111 services disable 111 services enable 111, 112 services factor 113 services inf
INDEX HP Multi-Site Traffic Director Server Appliance SA9200 User Guide hostnames siteservices 128, 129 hostnames siteservices disable 129 hostnames siteservices enable 129 hostnames siteservices factor 129 hostnames siteservices info 129 hostnames siteservices map 129 hostnames siteservices standby 129 hostnames siteservices stats 128, 129 hostnames siteservices weight 129 hostnames stats 126 hostnames ttl 127 info 118, 120 multi-vip-standby disable 128 multi-vip-standby enable 128 rename 119 stats 118,
INDEX HP Multi-Site Traffic Director Server Appliance SA9200 User Guide hosts 124 ISV groups 114 ntp server 96 services 116 traps 101 zones 119 D delete 100 deleting agent 106 authority for zones 122 community strings 100 configuration files 58 ISV groups 114 ntp server 96 services 111, 116 zones 119 diagnostics LEDs 168 runtime errors 167 DNS 6, 7 configuring servers 22 flash 2, 12 information 86 multi-vip response 14 dns commands 77 config dns 77 config dns agents 77 config dns flash 80 config dns isvg
INDEX HP Multi-Site Traffic Director Server Appliance SA9200 User Guide H Weighted Round Robin 2, 10, 196 help commands 85 ? 70 help ttychars 70 hosts adding 48, 52 creating 21, 29 I ISV 14 creating groups 27, 45, 114 deleting groups 114 disabling groups 115 displaying groups 139 displaying information 114 enabling groups 115 groups 14, 113 renaming groups 114 L least connections 2, 11 LEDs activity 167 boot-time diagnostics 166 runtime diagnostics 167 status 167 load balancers adding 33, 34 load bal
INDEX HP Multi-Site Traffic Director Server Appliance SA9200 User Guide show cli info 82, 148 show dns 81 show dns agents 81 show dns isvgroups info 81 show dns zones 81 show sys 82 show sys logs display 146 show dns agents commands metrics 134 metrics port 81, 135, 138 stats 134, 136 show dns commands flash info 133 info all 132 isvgroups 139 isvgroups info 139, 140 isvgroups services info 140 isvgroups services stats 140 stats 132 stats all 133 zones hostnames info 142, 143 zones hostnames stats 142, 14
