ATTO Technology, Inc. ATTO iPBridgeTM 2500C/R/D Installation and Operation Manual © 2005 ATTO Technology, Inc. All rights reserved. All brand or product names are trademarks of their respective holders. No part of this manual may be reproduced in any form or by any means without the express written permission of ATTO Technology, Inc.
Contents 1 iPBridge 2500 provide storage options ............................................1 iPBridge2500 features Connectivity, infrastructure solutions 1.1 ATTO iPBridge 2500R/D ......................................................3 Dimensions Environment Power SCSI interface Ethernet interface Serial interface LED indicators Installation instructions 1.2 ATTO iPBridge 2500C ..........................................................
2.5 Additional configurations ....................................................19 Change the current user name, password Set the Real Time Clock Create a read only password or user name Configuring SCSI devices SNMP protocol 3 ATTO ExpressNAV interface .............................................................21 Browser compatibility To optimize ExpressNAV in Internet Explorer Accessing ExpressNAV Opening an ExpressNAV session 3.1 ExpressNAV pages ....................................................
Checking SCSI devices Checking iPBridge SCSI ports Checking iPBridge Ethernet ports Checking the LAN/WAN Checking Ethernet Host Adapter or NIC Checking the applications Checking the host system Checking the Operating System 7 Alternative interface options ............................................................33 Use the serial port or header Use Telnet 7.1 CLI provides ASCII-based interface ...................................35 7.1.1 CLI commands summary .......................................36 7.1.
DumpEventLog DumpTraceLog EventLog EventLogFilter Help IdentifyBridge Info iSCSITargetNameDisplay IsReserved NDMPStatus Ping RMON RouteDisplay SCSIPortList SCSITargets SerialNumber SNMPDumpMIB SNMPExtendedTraps SNMPTrapAddress SNMPTraps TailEventLog Temperature TraceLog TraceLogFilter Voltage WrapEventLog WrapTraceLog 7.1.5 SCSI configuration commands .............................
ReadOnlyPassword RMON Username ReadOnlyUsername 7.1.8 NDMP commands ...................................................53 NDMPAuthType NDMPMaxVersion NDMPPortNumber NDMPStatus 7.1.9 iSCSI commands ....................................................55 iSCSIAlias iSCSIChap iSCSIChapSecret iSCSIPortNumber iSCSITarget iSCSITargetNameDisplay iSNSLoginControl iSNSServer MultiTargetMode 7.1.10 Mapping commands .............................................
1 iPBridge 2500 provide storage options Two protocols available on the iPBridge 2500 allow storage devices such as hard drives, tape drives and libraries and CD jukeboxes to attach easily to Internet Protocol networks such as Gigabit Ethernet. The ATTO iPBridge supports the high throughput needs of streaming data transfers, optimizing performance and management using ATTO Technology intelligent Bridging ArchitectureTM.
a web-based management application that allows all of the configurable settings for the iPBridge to be defined, viewed and edited. ATTO ExpressNAV: Connectivity, infrastructure solutions The topology of a heterogeneous Storage Area Network shown below demonstrates the critical role ATTO products play in the design and implementation of a SAN. Whether your application needs are data-intensive or bandwidth intensive, you need to store and manage that data and then deliver it to end-users efficiently.
1.1 ATTO iPBridge 2500R/D The ATTO iPBridge 2500R/D is a 1-Gigabit Ethernet to SCSI 1U full-rack bridge for midrange high performance, cost effective solutions in enterprise environments. The iPBridge 2500R/D includes a single power supply, two Ethernet data ports, an Ethernet management port which may be used as a data port in the iPBridge 2500 iSCSI-configured model, a serial management port and two SCSI data and management ports.
Serial interface The RS-232 serial port provides support for remote monitoring and management through a command line interface. It is set at the factory at 115,200 bps. Pin outs of the RJ11 connector, part number CBL0911-001 are Pin Description 2 TXD 3 Ground 4 RXD 5 Ground Exhibit 1.1-1 LED indicators The LED indicators can be viewed from the front of the iPBridge 2500R/D. Ethernet Link & Activity: Each Ethernet port has its own set of LEDs to show link status and speed as well as busy status.
Exhibit 1.1-2 hole pattern Overview of iPBridge 2500R/D standard 19-inch rack using a centered 1.25-inch (31.7 mm) 10" Front side with LEDs (see Exhibit 2.2-1) 16.91" Ethernet management port Ethernet data ports SCSI ports 1.72" power receptacle Fault LED RS-232 port SCSI activity LEDs Back (connector) side air vents 5 ATTO Technology Inc. iPBridge Installation and Operation Manual Centered 1.
1.2 ATTO iPBridge 2500C The ATTO iPBridge 2500C is a 1-Gigabit Ethernet to SCSI embeddable cPCI bridge for high performance, cost effective solutions in enterprise environments. The iPBridge 2500C includes two Ethernet data ports, an Ethernet management port which may be used as a data port in the iPBridge 2500 iSCSIconfigured model, a serial management port and two SCSI ports. It includes a battery-backed RealTime-Clock, and an IP Time client (RFC 1631 compliant). Dimensions Width: 6.193 inches Length: 6.
GbE cables must be at least CAT-5E certified for 1000 Mb/sec. use. Serial interface The RS-232 serial port provides support for remote monitoring and management through a command line interface. It is set at the factory at 115,200 bps. Pin outs of the RJ11 connector, part number CBL0911-001 are Pin Description 2 TXD 3 Ground 4 RXD 5 Ground Installation instructions 1 Install the iPBridge 2500C in the target device. (See the board layout diagram below) 2 Connect SCSI devices to the iPBridge.
Exhibit 1.2-2 ATTO iPBridge 2500C board layout M ounting hole 6" 5.974 " M ounting hole 5.756" Ethernet m anagem ent port RS-232 port Ethernet data ports SCSI ports -.218" 0" M ounting hole 0" -.216 " 6.
2 Configuring the iPBridge Set up your iPBridge by first getting an IP address, then use ATTO ExpressNAV to map devices. Default values are appropriate for most configurations, but may be modified for your needs using ATTO ExpressNAV. Configuration of the ATTO iPBridge, also known as iPBridge Services, is available through the ATTO ExpressNAV, a browser-based interface, or the Command Line Interface (CLI).
2.1 Getting an IP address Set up your iPBridge by first getting an IP address, then use ATTO ExpressNAV to map devices. The iPBridge is set up by default to request an IP address from a DHCP server. If you do not have a DHCP server to assign IP addresses to devices, get an IP address from your network administrator. Use the QuickNAV utility from the CD included with your iPBridge to find your iPBridge on your network.
2.2 NDMP configuration provides backup NDMP (Network Data Management Protocol) provides backup for network-attached storage (NAS) devices. NAS devices are dedicated file servers and cannot host applications such as backup software. NDMP defines a common agent to interface between any NAS device and any backup software program, minimizing demand on network resources, and enabling local backups and disaster recovery.
Setting up NDMP The ATTO iPBridge should first be configured for the network using the RS-232 port to establish the correct IP address, subnet mask, gateway and iPBridge names. Authentication can require the use of a client name-password pair, along with configuration of the security level (MD5, Text, or None) used for authentication. The iPBridge 2500 does not validate the client-name, and a single password is used for all password fields within the iPBridge 2500.
2.3 Mapping devices: NDMP Access to SCSI devices is via SCSI bus, target and LUNs. CLI commands are used to modify the mapping. The easiest way to map devices is to use the Automap command through the ATTO ExpressNAV interface. Note For NDMP-configured iPBridge 2500 models only. Map devices manually 1 The ATTO Technology ExpressNAV, a browserbased configuration tool, allows you to map devices to the SCSI ports using a web-based GUI. Refer to ATTO ExpressNAV interface on page 21.
Exhibit 2.3-1 Moving NDMP Names to SCSI ports under NDMP using the ATTO ExpressNAV interface.
2.4 Mapping devices: iSCSI SCSI devices are mapped using the designations for the SCSI bus, target and LUN. CLI commands are used to modify the mapping. The easiest way to map devices is to use the Automap command, either through the CLI or the browser-based interface, ATTO ExpressNAV. Note For iSCSI-configured iPBridge models only. To map devices, you must have a host computer connected to the iPBridge serial port or an Ethernet port. Refer to Getting an IP address on page 10.
Multiple Target mode Multiple Target mode breaks the single iSCSI node of the iPBridge and replaces it with a much more configurable mapping scheme. This new mapping scheme allows you to segregate storage into different iSCSI nodes within the iPBridge, with each iSCSI target having its own set of access criteria.
Exhibit 2.4-1 Examples of single and multiple target modes Physical connections Initiator/Host to Network Network to iPBridge Ethernet port iPBridge SCSI port to SCSI device (target) Server 1 Ethernet Network Bridge SN 000123 IP Address: 10.0.3.2 (1 IP Address for each Ethernet port) SCSI device Server 2 Mapping: single vs.
Exhibit 2.
2.5 Additional configurations Default values are appropriate for most configurations, but may be modified for your needs using ATTO ExpressNAV. It is best practice to change the default user name and password to a user name and password significant to you. Note If you have completed configuration operations at any time and have clicked Submit on the page you are viewing, go to the Restart page and restart the iPBridge to save the settings. If not, go on to the next command.
Configuring SCSI devices 1 2 If you have not already, open an ExpressNAV session. For instructions, refer to Opening an ExpressNAV session on page 21. Determine the current speed and transfer rates: type at the SCSI page. 3 SCSI Port Bus Speed controls the transfer rate at which the iPBridge attempts to negotiate with its SCSI devices. Default is Ultra3. Complete the appropriate settings.
3 ATTO ExpressNAV interface The easiest way to communicate with the ATTO iPBridge is to use the browser-based interface. ATTO Technology’s ExpressNAV, a browser-based configuration tool, contains all the current capabilities of the CLI in a user-friendly GUI interface accessed through a web browser. Access from any web browser that supports the latest standards for XHTML 1.0 and CSS1.To take full advantage of the ExpressNAV interface you should have JavaScriptTM enabled through your browser.
Note It is best practice to change the default user name and password after you have configured your iPBridge. If you do so, record the new user name and password in a convenient place. Exhibit 3.0-1 The Status page appears. 5 Follow the links to find information or configure your iPBridge. Each link takes you to a page such as the Time & Date Configuration page in Exhibit 3.0-1. Refer to ExpressNAV pages on page 23 for details on these pages.
3.1 ExpressNAV pages Each page in the ATTO ExpressNAV interface provides information and/or configuration parameters based on a specific topic. Each page can be reached through the menu at the side of each page. An image on each page’s header shows each port in the product faceplate. Each port is clickable and takes you to the appropriate page.
A text field beneath the box lists the most recent commands issued to the iPBridge through this page. If you enter an incorrect parameter, the CLI help text is displayed, showing the parameters available. 3 If your entry was correct, type saveconfiguration 4 Click the Submit button. Your changes are implemented. Firmware You may update firmware using ExpressNAV. Refer to Updating firmware on page 25.
4 Updating firmware Several processors control the flow of data in the ATTO iPBridge. The firmware to control these processors can easily be upgraded in the field using the ATTO ExpressNAV interface or the PUT command from an FTP connection. The ATTO ExpressNAV method is preferred. Preliminary steps Using ATTO ExpressNAV 1 The iPBridge firmware is distributed as a compressed .zip file and can be obtained from the ATTO Technology, Inc. web site at www.attotech.
5 Copying iPBridge configurations You can copy the configuration from one iPBridge to another in the field using the GET and PUT commands from an FTP connection or the ZModem SEND and RECEIVE commands over a serial connection. An iPBridge configuration file can be saved from one iPBridge and copied to another iPBridge. Note Before beginning this procedure, ensure that all I/O to the iPBridge has stopped. Do not power down the host or the iPBridge until the display returns the Ready prompt.
6 Troubleshooting If it is clear that a particular component system is at fault in a problem situation, go directly to that component. If it is not clear, the best approach is to troubleshoot using the inside-out method. You may check on the status of your iPBridge using the ExpressNAV interface. Refer to ExpressNAV pages on page 23 to see which pages may contain the information you need.
Check for problems on attached devices Check the following in order to find problems on attached devices: • • • Display panels Firmware levels Operability Check the following to find problems on attached hosts: • • Host adapter device driver version iSCSI driver version • • • • If an update is required, perform the update. For an updated list of supported iPBridge host platforms and host adapters, visit www.attotech.com.
not showing up, contact your service representative. 5 If all devices appear, invoke the ScsiTargets command several times on each SCSI port to verify that the devices can be seen. If devices disappear then appear again, the problem is most likely a SCSI cable. For information on the ScsiTargets command, refer to SCSI configuration commands on page 47. If all devices appear and remain, move to the iPBridge internal configuration section.
2 If there are routers involved in the setup, make sure the IP addresses and/or MAC addresses of the iPBridge are allowed through the router. 3 Verify that the switch can see the iPBridge on the port(s) in question. Refer to your switch vendor’s guide for more information. 1 A PC using an iSCSI storage adapter and an iSCSI OS driver might not work correctly on the same machine. Check with the vendors to make sure they are compatible.
Performance issues If the host is not getting the performance it should, check the following items. Checking the LAN/WAN 1 Checking SCSI devices 1 Verify that the devices are running at their highest possible SCSI speed. Refer to SCSI configuration commands on page 47. Mixing SE and LVD devices on the same SCSI bus forces the speed of the bus to SE, thus slowing faster LVD devices. The iPBridge cannot accelerate an already slow device.
Checking the host system The faster the host, the faster your transfer times are. The work flow goes only as fast as the slowest connection in the host system, so transferring data from an IDE drive, 100Mb connection, a DLT 4000, a high speed RAID volume across the country, or other applications, slows the system no matter how fast everything else is in the system. 1 Verify that the iSCSI storage adapter or NIC is connected to the fastest PCI bus connector supported by the adapter or NIC.
7 Alternative interface options Alternative methods to using the ATTO ExpressNAV interface may be used to manage the iPBridge. ATTO ExpressNAV is the recommended interface. Use the serial port or header 1 Connect a cable from iPBridge RS-232 serial port or header to the serial (COM) port on a personal computer. 2 Turn on the iPBridge. 3 Start a terminal emulation program on the personal computer, and use it to connect to the iPBridge.
Exhibit 7.0-1 Start up messages. ATTO iPBridge 2500 (c) 2002 - 2005 ATTO Technology, Incorporated. Firmware version Q75H release date May 5 2005, 12:29:33 Build Q75H 128 Megabytes of RAM Installed. 3 GbE Data Port(s). 2 LVD SCSI Interface Port(s). Bridge World Wide Name = 20 00 00 10 86 50 05 08 Bridge Serial Number = "IPB2500100275" Bridge Name = "iPBridge" Internal Temperature = 35 C [0 - 70] For help, type HELP.
7.1 CLI provides ASCII-based interface The command line interface (CLI) provides access to the ATTO iPBridge Services through a set of ASCII commands. CLI commands may be entered while in CLI mode. iPBridge Services provide configuration and monitoring for the iPBridge. CLI commands may be entered while in CLI mode or on the ExpressNAV interface Advanced CLI page. Note The recommended management tool for the iPBridge is ATTO ExpressNAV.
7.1.1 CLI commands summary A summary of the Command Line Interface commands, their defaults, an example of how they might be used, and where you can find the specifics of the command. Commands which have no default values associated with them have a blank entry in that column of the table.
Command iSNSServer Defaults 0.0.0.0 IsReserved Example Page get isnsserver 56 isreserved 44 MaxOpTemp 70 get maxoptemp 41 MinOpTemp 0 set minoptemp 10 41 MultiTargetMode disabled get multitargetmode NDMPAuthType none set ndmpauthtype text 53 NDMPMaxVersion 4 set ndmpmaxversion 3 53 NDMPPortNumber 10000 set ndmpportnumber DP0 200 53 NDMPStatus ndmpstatus OpTempWarn 5 set optempwarn 15 Password Password set password Ping 56, 57 44, 53 41 41, 51 ping dp0 192.42.155.
Command Defaults SpeedWrite Example Page get speedwrite scsi all 48 set speedwritedefault disabled 48 TailEventLog taileventlog 46 Temperature get temperature 46 Time set time 03:32:30 42 SpeedWriteDefault enabled TimeZone EST set timezone pst 42 TraceLog disabled set tracelog enabled 46 TraceLogFilter disabled set tracelogfilter all all 46 Username root set username Barbara 42, 52 VerboseMode enabled set verbosemode disabled 40 VirtualDriveResponse disabled set vir
7.1.2 General use commands These CLI commands are used in a variety of situations Help ReadOnlyUsername Displays a list of available commands. If a command name is specified, displays detailed commandspecific information. Specifies a read only user name for all telnet, FTP and ExpressNAV web server sessions. Username is case insensitive, 1-32 characters with no spaces.
Username VerboseMode Specifies a user name for all telnet, FTP and ExpressNAV web server sessions. Username is case insensitive, 1-32 characters with no spaces. Changes to the Admin Level user name requires an Admin Level password. Specifies the detail of feedback for the command line interface. Disabling this option removes parameter names from action commands and removes descriptions from information commands.
7.1.3 Maintenance commands The CLI commands outlined in this chapter may be used to get information or perform functions which are used in a variety of situations with the ATTO iPBridge. Date Sets the date for the iPBridge if SNTP has been disabled or is not available. Set syntax: set Date [MM] / [DD] / [YYYY] Requires a SaveConfiguration command Get syntax: get Date FirmwareRestart Causes the iPBridge to reboot, then re-initialize its firmware.
SNTP Controls the SNTP (Simple Network Time Protocol) settings for the iPBridge. When enabled, the iPBridge tries to contact a specified SNTP server at reset and every 12 hours after to initialize/synchronize the time. Default: Enabled Set syntax: set SNTP [enabled|disabled] Requires a SaveConfiguration command Get syntax: get SNTP SNTPServer Controls the IP address of the SNTP time server that the iPBridge contacts to initialize/synchronize the time.
7.1.4 Diagnostic commands ATTO iPBridge diagnostic commands help validate iPBridge operation and diagnose or isolate iPBridge faults. Event logging is a mechanism for on-site observation of internal iPBridge behavior such as tracing SCSI commands received over the GbE from the host and return of data and status to the host. BridgeModel Reports model information about a specific iPBridge Get syntax: get BridgeModel BridgeName Specifies name used to identify individual iPBridge units.
DumpEventLog Dumps the contents of the entire event log to an RS-232 or telnet session (over Ethernet) without impact on the log itself (the log is not cleared). No events are recorded until the command has been completed. IdentifyBridge Enabling this option causes the Fault LED on the front panel of the iPBridge 2500D to blink until the parameter is disabled.
Ping Sends an ICMP echo request to the specified host. Immediate command: Ping [DPn | MPn] [xxx.xxx.xxx.xxx] > RMON RMON collects and stores Ethernet data on data ports at specified intervals. You can display the entire table requested, or a single entry based on the index (and sample index for the Ethernet History table). Entries in the Ethernet History table are not valid when their Sample Index is 0.
SNMPTrapAddress Sets/displays the IP trap addresses and levels.Consult your network administrator for further assistance with SNMP. Index: value between 1 and 6 IP Address: standard IP address Trap Level: severity required for an event to trigger a trap: . None: no traps will be sent to the address .ALL: all triggering events will be sent ..Informational: a trap will be issued to the given address ..Warning: warning and critical events will be sent .
7.1.5 SCSI configuration commands The SCSI ports are configured with default settings but may be customized to your specifications using the CLI commands in this section. SCSIInitID Specifies the SCSI initiator ID to be used on the specified SCSI port. All maps coinciding with the user-specified SCSIInitID must be set to offline and becomes invalid upon issuing this command. Choices are 0 to 15.
SpeedWrite When enabled, improves the performance of WRITE commands to SCSI devices attached to the iPBridge. Specify SCSI bus (sb), target (st), LUN (sl) of a mapped SCSI device or (all) for each currently mapped device Set syntax: set SpeedWrite scsi [sb st sl | all] [enabled | disabled] Get syntax: get SpeedWrite scsi [sb st sl | all] SpeedWriteDefault When enabled, SpeedWrite performance enhancement is set as the default for any subsequent SCSI devices mapped manually or via an AutoMap operation.
7.1.6 Serial port configuration commands The ATTO iPBridge serial ports or serial headers are configured with default settings but may be customized to your specifications using the CLI commands in this section. SerialPortBaudRate Configures/reports the baud rate for the iPBridge RS-232 serial port or serial header. The number of data bits per character is fixed at 8 with no parity. Choices are 2400, 9600, 19200, 38400, 57600 and 115200.
50 CLI
7.1.7 Ethernet commands These commands configure the management and data Ethernet ports including telnet parameters. DPMTU Controls the MTU (Maximum Transmission Unit) used by the Ethernet ports: Increasing the MTU may improve throughput. IPDHCP Selecting DHCP allows the iPBridge to request an IP address from the network DHCP server. The network must have at least one DHCP server.
Ping Sends an ICMP echo request to the specified host. Immediate command: ping [DPn | MPn] [xxx.xxx.xxx.xxx] > ReadOnlyPassword Specifies a read only password for all sessions: NDMP, telnet, FTP and ExpressNAV web-based interface. A prompt asks for the current password, to enter the new password, and to confirm the new password. Passwords are case sensitive, 0-32 characters with no spaces. An empty password can be configured by entering the Password confirmation prompts with no parameters.
7.1.8 NDMP commands If your iPBridge has been configured for NDMP, default settings to the two iPBridge Ethernet data ports may be customized to your specifications using the CLI commands in this section. Note For NDMP-configured iPBridge 2500 models only NDMPAuthType Controls the security level used by the iPBridge for NDMP authentication for all ports.
54 CLI
7.1.9 iSCSI commands If your iPBridge has been configured for iSCSI, default settings may be customized to your specifications using the CLI commands in this section. Note For iSCSI-configured iPBridge models only iSCSIAlias Provides a human-readable name assigned to the iPBridge. Aliases may be 1 to 64 characters long and may contain spaces if spaces are enclosed in quotation marks. Entering the set iSCSIAlias command with no alias parameter causes the alias to be removed.
iSCSITargetNameDisplay Displays the iSCSI target name. If Multiple Target mode is enabled, iSCSI target names are listed for all existing iSCSI targets. iSNSServer Specifies whether the IP address of a valid iSNS server from which the iPBridge attempts iSCSI initiator discovery. Setting to 0.0.0.0 disables iSNS server lookup. Immediate command: iSCSITargetNameDisplay Default: 0.0.0.0 Set syntax: set iSNSServer [xxx.xxx.xxx.
7.1.10 Mapping commands You may map devices via the web-based server or through the management or serial ports. Refer to Mapping devices: NDMP on page 13 and Mapping devices: iSCSI on page 15 for details. AutoMap Automatically assigns a subset of NDMP device name protocol addresses or iSCSI LUNs to a subset of SCSI target destination devices visible to the iPBridge. Valid existing maps are not deleted. Immediate command: AutoMap iSCSITarget Creates/deletes an iSCSI target name.
the list to the map which satisfies a search for the given LUN. NumEntries: decimal number of map lines displayed Target Name: target name Lun : target LUN sb: decimal SCSI bus number st: decimal SCSI target number sl: decimal SCSI LUN number Immediate command, single target mode: RouteDisplay iSCSI Immediate command, multiple target mode: RouteDisplay iSCSI SCSIInitID Specifies the SCSI initiator ID to be used on the specified SCSI port.
Appendix A ATTO iPBridge, FibreBridge family The ATTO bridge family of products provides iSCSI-to-SCSI, iSCSI to Fibre Channel or Fibre Channelto-SCSI bridges available as Compact PCI (CPCI) boards, stand alone enclosures that can be fitted for rackmount integration, or desktop units, depending on the model and your needs. The ATTO iPBridge and ATTO FibreBridge family of products share common configuration options and functions to provide the most versatile connectivity options available.
Fibre Bridge products Product features 1180E/D 1290E 2300E/R/D 2350C 3300R 2400C/R/D 4500C/R/D 1 1 1 1 1 2 1 FC interface DB9/SC SFP SFP SFP SFP SFP SC Data transfers 1 Gigabit 2 Gigabit 2 Gigabit 2Gigabit 2 Gigabit 4 Gigabit 1 Gigabit 1 2 2 2 2 2 4 SCSI interface LVD/SE LVD/SE LVD/SE LVD/SE LVD/SE LVD/SE VHDCI LVD/SE Ultra2 HVD UltraSCSI VHDCI Data transfers Ultra2 Ultra3 Ultra3 Ultra3 Ultra3 Ultra320 Ultra2 Number of Fibre Channel ports Number of SCSI
Appendix B Cabling Additional information to physically connect ports to devices and to your SAN. SCSI cabling Examples The SCSI specification limits total bus cable length for single-ended SCSI in a non-UltraSCSI environment to 3 meters (combined length of both internal and external cable lengths). In an UltraSCSI workgroup environment with a 7drive tower, you are limited to 1.5 meters between the host and the tower, including the cabling for the tower.
devices from both SCSI busses to increase overall performance. Each SCSI bus auto-negotiates the appropriate sync rates with the connected devices. If slower devices are mixed with faster devices, the bus communicates at the rate of the slowest device, thus wasting the performance capabilities of the faster devices. Connect slower devices to one SCSI port and connect faster devices to the other port.
Appendix C Glossary More information is available through the Storage Networking Industry Association (www.snia.org/education/dictionary), the Network Data Management Task Force (www.ndmp.org), and the IETF (www.ietf.org). Term Definition Btl Bus-Target-LUN: Identification for a parallel SCSI device CHAP Challenge-Handshake Authentication Protocol: If CHAP is enabled, the target requires the initiator to negotiate CHAP authentication using the CHAP secrets (passwords).
Term Definition SNMP Simple Network Management Protocol: a standard for monitoring and managing systems and devices in a network; data is defined by a MIB; functions supported include the request and retrieval of data SNTP Simple Network Time Protocol: uses a server to set the time and date over the Ethernet port.
Appendix D Safety standards and compliances The equipment described in this manual generates and uses radio frequency energy. If this equipment is not used in strict accordance with the manufacturer's instruction, it can and may cause interference with radio and television reception. Refer to the Technical Specification sheet available at www.attotech.com for a full list of certifications. WARNING Risk of explosion if battery is removed and/or replaced by an incorrect type.
European Standards Declaration of Conformity This following statement applies to the ATTO iPBridge.
Appendix E ATTO accessories The following accessories are available through ATTO Technology. Contact an ATTO Technology authorized sales representative to order. iSCSI Bridge board-level models ATTO iPBridge 2700C IPBR-2700-C00 4 Gigabit Ethernet by 2 4-Gb Fibre Channel ATTO iPBridge 2500C IPBR-2500-C00 3 Gigabit Ethernet by 2 LVD SCSI ATTO iPBridge 1500E IPBR-1500-E00 1 Gigabit Ethernet by 1 LVD SCSI, up to 37 MB/sec.
Appendix F Warranty, contact information Manufacturer limited warranty Manufacturer warrants to the original purchaser of this product that it will be free from defects in material and workmanship as described in the ATTO Technology website, www.attotech.com. Manufacturer liability shall be limited to replacing or repairing, at its option, any defective product. There will be no charge for parts or labor should Manufacturer determine that this product is defective.