™ Cobalt NASRaQ User Manual
©1999 Cobalt Networks, Inc. All rights reserved. Cobalt Networks and Cobalt NASRaQ are trademarks of Cobalt Networks, Inc. All other company, brand, and product names may be registered trademarks or trademarks of their respective companies and are hereby recognized. This publication and the information herein is furnished AS IS, subject to change without notice, and should not be construed as a commitment by Cobalt Networks, Inc. Furthermore, Cobalt Networks, Inc.
Important Safeguards For your protection, please read all these instructions regarding your Cobalt NASRaQª and retain for future reference. Read Instructions All the safety and operating instructions should be read and understood before the appliance is operated. Ventilation The Cobalt NASRaQ Ôs vents (on the front) and the fan opening (on the back panel) are provided for ventilation and reliable operation of the product and to protect it from overheating. These openings must not be blocked or covered.
Power Cord ! English Caution: The power supply cord is used as the main disconnect device. Ensure that the socket-outlet is located/installed near the equipment and is easily accessible. ! French Attention: Le cordon d’alimentation est utilisé comme interrupteur général. La prise de courant doit etre située or installée a proximité du matérial et etre facile d’accés. ! German Achtung: Zur sicheren Trennung des Gerates vom Netz ist der Netzstecker zu ziehen.
Browsers When using a web browser to interact with your Cobalt NASRaQ, you may experience a browser failure. Some releases of Netscape Navigator¨ and Microsoft¨ Internet Explorer may contain errors that can cause intermittent, unexplained failures. These failures, however, should not adversely affect the NASRaQÕs data. For reliability, Cobalt recommends using the latest released version of a web browser.
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Contents 1 Introduction Overview 1 2 Front View 2 Back View 3 Requirements 3 Who Uses the NASRaQ 4 How This Guide is Organized 4 Customer Service and Technical Support 5 2 Setting Up the NASRaQ Establishing a Connection 7 7 Installing the NASRaQ 7 Connecting to the Network 9 Connecting the Power Cord 9 Powering On the NASRaQ 9 Configuring the Network 10 Automatic Configuration using a DHCP Server 10 Manual Configuration using Control Buttons 11 Setting Up With the Web Browser
Control Panel 32 Network 33 Access Rights 34 Time 34 Simple Network Management Protocol (SNMP) 34 NT Domain 34 RAID 35 Maintenance 35 Backup 35 Restore 36 Install Software 36 Reboot 36 Shutdown 36 System Status 37 Disk Usage 38 RAID 38 Memory 38 CPU 38 Service Status 39 File Services 39 SNMP 39 Active Monitor 39 A Using the LCD Console 41 Changing Network Configuration 42 Rebooting 42 Powering Down 43 Resetting Network Configuration 44 B Product Specific
Contents C Advanced Information 47 Resetting the Admin Password 47 Changing the Admin Password from the Browser 48 Telnet Access 48 D Licenses 49 E Glossary 55 ix
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Chapter 1 Introduction The Cobalt NASRaQª delivers high capacity storage, crossplatform Þle sharing services, and remote administration capabilities all packaged in a single rack unit height, industry standard enclosure.
Chapter 1 Overview The following diagrams show the NASRaQ front and rear views including controls, indicators, and connectors.
Introduction SCSI OK to Power Off Network 1 Serial Col Link Tx/Rx 100 M Back View Cobalt Networks and Cobalt NASRaQ are trademarks of Cobalt Networks, Inc. 100 - 240 VAC 50/60 Hz 1.0 A 40W max www.cobaltnet.com Serial Connector Cooling Fan Network Connector OK to Power Off SCSI Port Network Status Indicators Power Socket Power Switch ¥ The Serial Connector allows for serial port console connection. ¥ The Cooling Fan maintains proper thermal parameters.
Chapter 1 Who Uses the NASRaQ Users include the system administrator and general users. For security reasons, the administrator sets up and maintains the NASRaQ. General users can attach to the NASRaQ as they would any other shared volume(s) via their desktop computers to store or access data. How This Guide is Organized This guide is organized: 4 Chapter 1 ÒIntroductionÓ on page 1 discusses the NASRaQÕs function and features.
Introduction Customer Service and Technical Support For Cobalt product information, visit the support section of the Cobalt Web site at http://www.cobaltnet.com/support/. The site includes a list of Frequently Asked Questions (FAQs) that provide additional information. For General Cobalt Information In the U.S.A., call (888) 70-COBALT or (888) 702-6225, or send e-mail to info@cobaltnet.com. Outside the U.S.A., call +1 650 930-2500, or send e-mail to info@cobaltnet.com.
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Chapter 2 Setting Up the NASRaQ This chapter is intended for the NASRaQ administrator and describes connecting and conÞguring the NASRaQ for your network. If the NASRaQ has been previously conÞgured for a different network, refer to ÒChanging Network ConÞgurationÓ on page 42. The setup process includes the following steps: ¥ ÒEstablishing a ConnectionÓ on page 7 discusses the physical setup and connection of the NASRaQ to a power source and the network.
Chapter 2 ! Caution: If you operate the NASRaQ in an equipment rack, see the precautions described in “Using Equipment Racks” on page iv. If you plan to use the NASRaQ on a ßat surface, attach the rubber feet to the Þve indentations in the bottom of the case. Figure 1 Attaching rubber feet Rubber feet If you plan to operate the NASRaQ in an equipment rack, Þrst connect the mounting ears to the sides of the NASRaQ (as shown in Figure 2) near either the front or the rear of the case.
Setting Up the NASRaQ Connecting to the Network Connect one end of a Category 5 Ethernet cable to the 10/100 Base-T network connector on the back of the NASRaQ (see Figure 3). Connect the other end to an existing network socket. Network 1 SCSI OK to Power Off Serial NASRaQ Rear View Col Link Tx/Rx 100 M Figure 3 Cobalt Networks and Cobalt NASRaQ are trademarks of Cobalt Networks, Inc. www.cobaltnet.com Network Connector SCSI Connector 100 - 240 VAC 50/60 Hz 1.
Chapter 2 Configuring the Network Now that youÕve made the network and power connections, youÕre ready to conÞgure the network settings. The NASRaQ requires speciÞc network information to properly function. The information can be entered automatically or manually. Depending on the network environment, the NASRaQ may be able to obtain the necessary information from a DHCP server on your network. If so, it will attempt an automatic conÞguration.
Setting Up the NASRaQ Manual Configuration using Control Buttons If the NASRaQ doesnÕt Þnd a DHCP server on the network, the following prompt appears on the LCD display: ENTER IP ADDR: 000.000.000.000 If this prompt appears, you need to enter the required network information using the LCD control buttons. See ÒUsing the LCD ConsoleÓ on page 41.
Chapter 2 Figure 4 Control buttons LCD Screen Reset Port Control Buttons HereÕs how the control buttons work: The reset port is used to reset the NASRaQ. The Left button moves the cursor left. The Right button moves the cursor right. The Up button increments the digit located at the cursor position. The Down button decrements the digit located at the cursor position. S The S button (ÒselectÓ) selects the next option. E The E button (ÒenterÓ) accepts the information.
Setting Up the NASRaQ 2. Press E . If the IP address is valid, the prompt appears: ENTER NETMASK: 255.000.000.000 3. Enter the netmask of your network, if the number shown is not correct. 4. Press E . If the netmask is valid, the following prompt appears: ENTER GATEWAY: 000.000.000.000 5. Enter the IP address of the gateway for your network. If your network doesnÕt have a gateway, donÕt enter any number Ñ leave the default value, Ò000.000.000.000.Ó 6. Press E .
Chapter 2 Setting Up With the Web Browser You need to perform the remainder of the setup process through a web browser from any network computer. Use a standard browser such as Netscape Navigator or Microsoft Internet Explorer (versions 4.0 or later) to do this. After the setup process is complete, the NASRaQ can be managed from any browser-enabled computer on the network.
Setting Up the NASRaQ When you have successfully conÞgured the NASRaQ, the setup wizard introduction is displayed (see Figure 5). Figure 5 4. NASRaQ Welcome Screen Click the Start button to proceed. Configuring the NASRaQ with the Setup Wizard The setup wizard is a step-by-step conÞguration process that guides you through the setup process. After completing each step, click on the NEXT button to apply the changes and go to the next step.
Chapter 2 1. Network Setup The Þrst wizard setup screen appears in Figure 6. Figure 6 Network Setup Wizard From the Network Setup screen, you can: ¥ Assign a hostname to the NASRaQ (for example, nasraq1) ¥ Enter your domain name (the ofÞcial name that is registered with InterNIC, for example, cobaltnet.com) ¥ Enter the IP address of your domain name server. The IP address of your Domain Name Server is necessary for the NASRaQ to convert between IP addresses and names.
Setting Up the NASRaQ The NASRaQÕs administrator has two primary responsibilities. The Þrst is setting up the users, groups, shares, and services on the NASRaQ. The second is responding to e-mail alerts from the NASRaQ to prevent potential problems. To complete Administrator setup, Þll in the Þelds for: ¥ Full name Name of the person serving as administrator. ¥ Password Enter a password twice to verify accuracy. The password can be an alphanumeric string limited to eight characters.
Chapter 2 If you forget or want to reset the password, refer to ÒResetting the Admin PasswordÓ on page 47. Click the NEXT button. 3. Services Setup The third wizard setup screen appears in Figure 8. Figure 8 Services Setup Wizard Choose the services you would like to be active on the NASRaQ from the list. You can conÞgure work groups and the WINS server by clicking Parameters...
Setting Up the NASRaQ 4. Time Setup The fourth wizard setup screen appears in Figure 9. Figure 9 Time Setup Wizard Enter the current date, time, and time zone on the NASRaQ. Or specify the address of an NTP server that you want to synchronize the NASRaQ. Click the NEXT button.
Chapter 2 5. NT Domain Integration The Þfth wizard setup screen appears in Figure 10. Figure 10 NT Domain Integration This screen includes two options. You can: ¥ DeÞne user accounts locally. Choose to add users locally which creates user accounts directly on the NASRaQ. ¥ Use user accounts from Windows NT domain integration from a NT PDC. Set up your NASRaQ to appear to join a Windows NT domain using the NT domain integration capability. Warning:This choice can not be changed later.
Setting Up the NASRaQ The NASRaQ then redirects authentication requests to your PDC or BDC when a user tries to log in. The result is to eliminate the need to maintain user account information on the NASRaQ. All changes to user accounts on your NT Primary Domain Controller will be reßected on your NASRaQ when the NASRaQ synchronizes with the PDC. If enabling NT domain integration, you need the machine name and IP Address of the PDC or BDC and a valid NT user with the associated NT password.
Chapter 2 6. RAID Setup The sixth wizard setup screen appears in Figure 11. Figure 11 RAID Wizard Setup Note: RAID setup is a one-time process that may take up to an hour to complete. ! Caution: Choosing a RAID mode is a choice that cannot be changed later. Choose the RAID mode carefully. Figure 11 on page 22 includes two options: 1. Striped RAID 0 mode, data is stored in a striped fashion Ñ the server spreads the data across both of the two internal disks.
Setting Up the NASRaQ level of data security. Data is always written to both disks so there are always two copies of the data. This protects the data in case of catastrophic disk failure. See ÒMirroringÓ on page 57 for additional information. Note: RAID 1 mode provides redundancy, which increases the reliability. However, the NASRaQ’s RAID 1 system does not provide for zero downtime as hardware-based RAID systems do. If a disk fails, the NASRaQ may be inaccessible until the system is rebooted.
Chapter 2 Completing Configuration With the Setup Wizard When youÕve entered the information in the setup wizard, click FINISH. Once the NASRaQ has been conÞgured, the Public Site appears (see Figure 13 on page 24). This page also appears whenever you go to the URL http://IP address/cobalt/. Once you have completed the setup wizard, the NASRaQ begins to conÞgure your choices. If you go to the administrator site, the NASRaQ displays a status screen while RAID is being conÞgured.
Chapter 3 NASRaQ Administration This chapter describes NASRaQ administrator functions and capabilities. To access the NASRaQÕs Administrator Site, you can either: ¥ Click the Administrator Site button on the Public Site (see Figure 13 on page 24) ¥ Enter the URL http://hostname.domainname/admin/ from your browser. When you select the Administrator button, the screen in Figure 14 is displayed. You are prompted for the administrator user name and password.
Chapter 3 NT Domain Versus Local Authentication The NASRaQ authenticates users in either local or an integrated NT Domain mode. The local authentication mode uses a locally stored password database. Each user's account exists on the NASRaQ independent from other server accounts the user may have. Using the local mode, user accounts must be created and managed by the administrator. The integrated NT Domain authentication mode means that all user and group accounts are added from an existing NT Domain.
NASRaQ Administration From User Management page: ¥ Click Add User to add a user if in local user authentication mode. This does not appear in NT domain integration mode. ¥ To remove a user, click the corresponding trash ¥ Click a pencil icon to modify the corresponding userÕs full name and password, and adjust the total disk space allowed for Þles. icon.
Chapter 3 The user list is updated from your NT PDC every 15 minutes. If you want to update the list sooner, go to the NT Domain control panel and choose Save Settings. Group Management The NASRaQ enables you to manage access rights by groups. You can set up the NASRaQ for management by departmental or organizational units. If your NASRaQ is not part of an NT Domain, you can add groups to the NASRaQ by clicking Add Groups.
NASRaQ Administration Groups Click Groups to access the Groups administration screen, where you can manage group settings (see Figure 16 on page 29). This screen allows for local group authentication. By clicking Add Groups, you can add groups to the NASRaQ. New users can be added, and existing users can be removed from a groupÕs membership by clicking the userÕs checkboxes on or off. If you are not in NT authentication mode, only the groups that you create on the NASRaQ are displayed.
Chapter 3 Shares A ÒshareÓ is a shared directory thatÕs accessible via the network. Each share on the NASRaQ is simultaneously accessible to both Windows and Macintosh clients if enabled via SMB and AppleShare. Each share can have a unique set of access controls. Figure 17 Shares Administration Screen Select Shares to access the Shares section which contains a list of all the deÞned shares. You can click Add Share to deÞne a new share.
NASRaQ Administration ¥ Maximum Disk Space. This is the maximum portion of disk space granted to the share. The administrator receives warnings via e-mail if the limit has been approached or exceeded. Note: It may appear that the total amount of disk space granted to all shares can exceed the total available disk space. However, the actual space used by all shares cannot exceed the total disk space. The disk space limit is either a share’s limit or the disk’s physical space limit. ¥ Full Access.
Chapter 3 Services To manage settings for the NASRaQ services, click the Services button at the top of the screen. To turn on any of the services listed in the Service Settings table, click its check box. The services are described in the following sections. Microsoft Windows File Sharing (SMB) Windows-based machines use a Þle sharing protocol called SMB (Server Message Block).
NASRaQ Administration ¥ Subnet Mask: Many NASRaQ functions may appear to be working even if you have entered an incorrect subnet mask. However, the NASRaQ does not appear in the Network Neighborhood if you have entered an incorrect subnet mask during the initial setup. If you need to change your subnet mask, you need to reset the network from the front LCD panel. See ÒUsing the LCD Console to ConÞgure the NetworkÓ on page 11 for instructions.
Chapter 3 The IP address of your DNS is necessary for the NASRaQ to be able to convert between IP addresses and names. The hostname and domain name must be coordinated with your network administrator to access the NASRaQ by its name and not just its IP address. Access Rights This screen is for controlling telnet access. You can choose to either make telnet available to only the root user (the system administrator) or turn it off.
NASRaQ Administration RAID The RAID mode is determined during initial wizard setup. After the mode has been set, you cannot change the RAID mode. Maintenance The Maintenance section provides several web-based utilities that facilitate the day-to-day operations of the NASRaQ. To access these utilities, click Maintenance on the Administrator Site, then click the button that corresponds to the utility you want to use (each utility is described later in this chapter).
Chapter 3 Restore After restoring the data to the BACKUP share, one Þle, conÞg.tar, is created. Click the restore conÞguration option to restore the entire contents of the BACKUP share. To restore the system's conÞguration: 1. Copy your backup copy of conÞg.tar onto the BACKUP share. 2. Click the Restore ConÞguration button on the Restore ConÞguration screen. 3. You are prompted to reboot the NASRaQ. Restoration takes effect after rebooting.
NASRaQ Administration Note: Turning off the Power switch before the NASRaQ tells you to do so may result in lost data. System Status Use the System Status section of the NASRaQÕs Administrator interface to monitor CPU, memory, disk, and RAID status. In all cases, the NASRaQ monitors subsystem performance and displays a colored LED beside each item.
Chapter 3 Disk Usage Disk Usage describes the total disk space occupied by system Þles, by users, and by shares/volumes, the amount of free disk space left, and the total available disk size of the NASRaQÕs disks. This space is determined by the RAID mode selected. RAID RAID status page describes four values relating to your RAID disk conÞguration. ¥ RAID Mode - the RAID mode you decided to use when you set the machine up in the setup wizard.
NASRaQ Administration Service Status The Service Status section allows you to monitor Þle services and SNMP. It follows the same LED conventions as ÒSystem Status.Ó Figure 21 Service Status Administration Screen File Services File Services displays the status of the Windows File Sharing (SMB) service and the AppleShare service if either is enabled. SNMP SNMP (Simple Network Management Protocol) displays the status of the SNMP serverÕs operation.
Chapter 3 To access the Active Monitor section, click Active Monitor on the Administrator screen. Figure 22 Active Monitor Administration Screen If you see a blinking red light next to any of the components or services listed in this section, the Active Monitor is signaling that a serious condition exists on the server. Click the light to examine the component or service which is producing the error.
Appendix A Using the LCD Console During startup, the LCD screen displays status information about the boot process itself. During setup, the LCD console is used to enter NASRaQ network conÞguration information. Once the NASRaQ is running, the LCD console also serves multiple purposes. You can use it to: ¥ Change network conÞguration information, which is useful if the NASRaQÕs location has changed. ¥ Reboot, which restarts the entire system.
Appendix A Changing Network Configuration To reset the IP address or change the network conÞguration of the Primary Network interface from the LCD console: 1. From the LCD console, hold down the Select button for approximately 2 seconds. The LCD screen displays: SELECT: SETUP NETWORK 2. Press the Enter button. 3. Enter the IP address of the Primary Network Interface, and then press the Enter button. 4. Enter the netmask of the Primary Network Interface, and then press the Enter button. 5.
Using the LCD Console 2. Press the Select button once until REBOOT appears in the LCD display: SELECT: REBOOT 3. Press the Enter button. 4. Use the cursor control keys to toggle the cursor between [Y] and [N]. Select [Y] to reboot the system and then Enter. Note: You can also reboot via the browser. To do this, go to the Server Management screen, click Maintenance, and then click Reboot (at the top of the screen). In the table that appears, click Reboot.
Appendix A The LCD screen displays: PLEASE SWITCH POWER OFF NOW 5. Press the On/Off switch to turn off the NASRaQ. Resetting Network Configuration The ÒReset NetworkÓ function resets: ¥ The hostname ¥ IP address ¥ Netmask ¥ Gateway ¥ DNS information for both network interfaces (Primary and Secondary) Resetting the NASRaQ returns it to its factory default settings. This function may be useful if youÕre moving the NASRaQ to a new network. To reset the NASRaQÕs network state: 1.
Appendix B Product Specifications Technical Data for the Cobalt NASRaQ Hardware Specifications 64-bit superscalar processor 32-MB to 64-MB 3.
Appendix B System management: SNMP management support Browser-based setup wizard Browser-based server management Online ActiveAssist real-time help ActiveMonitor maintenance agents Advanced management using Telnet Web-based performance and usage reporting Browser-based software upgrade Physical Data Dimensions: 17.00 in. x 12.50 in. x 1.75 in. (43.2 cm x 31.8 cm x 4.5 cm. Fits in standard 19Ó rack).
Appendix C Advanced Information Resetting the Admin Password If you forget the NASRaQ administrator password, you can clear it by following these steps: 1. Push and hold a paper clip in the Reset Password port (on the front of the NASRaQ). Hold the button in for approximately 2 seconds.
Appendix C Changing the Admin Password from the Browser If you know the administrator password and want to change it, follow these steps: 1. Go to the Administrator Site. 2. Click the Users button on the left side of the screen. 3. Click the Administrator button at the top of the screen. 4. Enter the new password. 5. Click Save Changes. Telnet Access Telnet access is available and should be used by advanced users only.
Appendix D Licenses THE BSD COPYRIGHT Copyright ©1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. Redistribution and use in source and binary forms, with or without modiÞcation, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2.
Appendix D to say, a work containing the Program or a portion of it, either verbatim or with modiÞcations and/or translated into another language. (Hereinafter, translation is included without limitation in the term ÒmodiÞcation.Ó) Each licensee is addressed as Òyou.Ó Activities other than copying, distribution and modiÞcation are not covered by this License; they are outside its scope.
Licenses 1. Accompany it with the complete corresponding machine readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, 2.
Appendix D If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances.
Licenses FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. This product includes software developed by the University of Michigan, and its contributors. Copyright © 1990,1996 Regents of The University of Michigan. All Rights Reserved.
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Glossary 10/100 Base-TX Refers to running Ethernet on twisted pair cables, with a throughput of 10 or 100 Mbps. AppleShare File-sharing protocol used on Macintosh computers. Backup Domain Controllers (BDC) The BDC operates in a Windows NT Server domain. The BDC is a computer running the Windows NT Server that receives a copy of the NT domain's users and groups database, which contains all account and security policy information for the domain.
Glossary Gateway A network device that acts as an entrance to another network. A gateway may also be any device that passes packets from one network to another network across the Internet. HTML HyperText Markup Language (HTML) is the set of ÒmarkupÓ tags, symbols, or codes inserted in a text Þle intended for display on a world wide web browser. The markup tells the web browser how to display a web page's content, words, and images.
Glossary Mirroring RAID level 1, or mirroring provides redundancy by writing identical data to each member disk of the array, leaving a ÒmirroredÓ copy on each disk. Mirroring remains popular because of its simplicity and high level of data availability. Level 1 operates with two or more disks that may use parallel access for high data-transfer rates when reading, but more commonly operate independently to provide high I/O transaction rates.
Glossary Share A share is a shared directory thatÕs accessible via the network. Each share on the NASRaQ is simultaneously accessible to both Windows and Macintosh clients if enabled. Each share can have a unique set of access controls. SMB The Server Message Block (SMB) protocol enables client applications in a computer to read and write to Þles on a computer network and to request services from server programs in a computer network for systems running Windows.
Glossary WINS Server WINS (Windows Internet Naming Service) manages the association of workstation names and locations with Internet Protocol addresses (IP addresses) without the user or an administrator having to be involved in each conÞguration change. WINS automatically creates a computer name-IP address mapping entry in a table, ensuring that the name is unique and not a duplicate of another computer name in the same network.
Glossary 60
Index Numerics 10/100 Base-TX 55 A access rights 34 active assist 14 Active Monitor 39 administration access rights 34 control panel 31 groups 29 setting time 34 shares 30 users 26 AppleShare 55 audience adminstrator 4 general users 4 network connector 3 SCSI port 3 serial connector 3 contact information 5 control buttons 11 control panel access rights 34 administration 31 services 31 cooling fan 3 CPU 38 customer support 5 D debugging 32 disk usage 38 DNS 55 domain name 55 B E Backup Domain Controlle
Index H help 14 HTML 56 HTTP 56 I installation mounting ears 8 NASRaQ 7 rubber feet 8 InterNIC 56 introduction 1 IP address 56 L LCD screen 2 Leased IP addresses 56 Legato file backup 33 lithium battery iii logical memory 58 M MAC address 56 maintenance backup 35 reboot 36 shutdown 36 managing groups 28 memory 38 mirroring 58 mounting ears 8 N NASRaQ connections 3, 7 front view 2 installation 7 introduction 1 LCD control buttons 2 maintenance 35 overview 2 rear view 3 rebooting 36 requirements 3 62 re
Index setup wizard 15 Share 58 shares adding 30 modifying 30 removing 30 shut down 36 SMB 32, 58 SNMP 33, 34, 39 specifications hardware 45 software 45 status indicators NASRaQ 2 network 3 system 37 striping 58 subnet mask 58 support 5 swap file 58 system status CPU 38 disk usage 38 memory 38 monitoring 37 RAID 38 T TCP/IP 58 technical support 5 telnet access 48 time, setting 34 U user management managing users 27 users adding 26 modifying 26 removing 26 V ventilation iii virtual memory 58 W WINS 59 W
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