Apple NMB-003 manual Installing or Replacing a Battery Module

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3Push the two latches together to fully seat the module in the system. If the latches have small tabs on the inside, slide the tabs away from you and then close the tabs.

Note: Keep the packaging and the old controller module. You will need to return the failed component to Apple when you receive a replacement.

Installing or Replacing a Battery Module

You can obtain optional battery modules to protect data in the Xserve RAID controllers’ cache in the event of a power interruption.

The system’s power supplies charge the battery modules when they are installed in the system. You can check a battery’s charge when the module is out of the system by pressing the button on the underside of the module. All four green LEDs light up when the battery module is fully charged. Do not remove a battery module to check its charge; use the RAID Admin software for that purpose. (See the document “Using RAID Admin and Disk Utility” on the CD that came with your system for details.)

If no battery modules are installed in the system, the module compartments have covers that you must remove to install the battery modules.

Follow these steps to install or replace a battery module.

1Remove the cover or installed module using one of these procedures:

m To remove the cover, squeeze the latches together and pull off the cover.

m To remove a battery module, squeeze the latches together, place your fingers inside the handle, and firmly pull the unit out of the system.

Squeeze the two latches on the backup battery compartment cover inward to release it and then remove the cover.

Installing or Replacing Components

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Contents User’s Guide Apple Computer, Inc. All rights reserved Apple Computer, IncContents Installing or Replacing Components Installing the SystemConnecting Xserve RAID to a Host System and a Network Using the Xserve RAID SystemRAID Overview Installing Xserve RAID Hardware and SoftwareConnecting a 14-Drive System to a Host Computer or Switch Data Storage MethodsAppendix B Safety, Maintenance, and Ergonomics Glossary Appendix a SpecificationsAbout This Guide Page Introducing Xserve RAID Unpacking the System Introducing Xserve RAID Your System at a Glance-Front Panel Indicates temperature status green is OK, red is failure RAID Your System at a Glance-Back PanelRedundant, hot-swappable cooling module cools the system Your System at a Glance-Mounting Hardware Use this bar to fasten extenders C and D for a deep rack Page Use your leg muscles to lift Preparing to Install Xserve RAID in a RackGuidelines for Installation Precautions for Handling the SystemChoosing the System’s Location in the Rack Lift with a smooth motion don’t jerk the load up or downRack Stability Electrical PowerSecurity Operating EnvironmentMounting Xserve RAID in a Rack Getting Ready to Install the System Determine the Position for the System in the Rack Prepare the System for Installation Installing the SystemFollow the instructions in Unpacking the System on Assemble the Brackets and Extenders Two mounting screws for attaching the system to the rackTighten the screws and then remove the template Repeat this procedure for the second bracket and extender Six short screws for assembling two brackets and extenders Secure each bolt with a washer Adjust the mounting Mounting Xserve RAID in a Rack Mount the System in the Rack Secure the System in the Rack or Cabinet Moving the Xserve RAID System System and a Network Connecting Xserve RAID to a Host System or Switch Installing the Host Bus Adapter Card in the Host SystemAbout Fibre Channel Connections and Cables Connecting the System to Xserve or a Power Mac G4 Connecting Xserve RAID to a Switch or Hub Removing Cables From the Xserve RAID and Host Systems Connecting to a Network Connecting Power to the System Plug one of the system’s power cords into the UPS Connecting an Uninterruptible Power SupplyFollow these steps to connect a UPS unit to the system Starting Up the System Using the Xserve RAID SystemTurning Off the System Using Status Lights and Other IndicatorsLight manually check If the System Has a Problem Follow these steps to install or replace a drive module Installing or Replacing an Apple Drive ModuleAbout Replacing Components Security lock Follow these steps to replace a power supply Replacing a Power SupplyReplacing a Cooling Module Installing or Replacing Components Replacing a RAID Controller Module Installing or Replacing a Battery Module Obtaining Additional Replacement Components RAID Overview Setting Up the Xserve RAID SystemInstalling the system in a rack or cabinet Installing Xserve RAID Hardware and SoftwareHow RAID Works Connecting to an Ethernet networkAbout RAID Storage Scalability for expansion of storageData Storage Methods RAID Levels RAID 0+1 requires a minimum of four drivesRAID 5 requires a minimum of three drives RAID 3 requires a minimum of three drivesHardware and Software RAID What’s Next? Planning RAID Storage For the Xserve RAID System Tools for Configuring the Xserve RAID SystemRAID Controllers and Drive Modules Drive modules Controllers RAID RAID 0+1 Xserve RAID SchemesSystem With Four Drive Modules RAID 1 Schemes RAID 3 or RAID 0+1 and RAID 10 Schemes System With Seven Drive Modules RAIDDisk Mirror Mirror Mirror Hot spare RAID 3 or 5 Hot spare RAID 3 or Disk System With 14 Drive Modules RAID 0+1 Disk Hot spare RAID 1 and RAID 3 or Disk Mirrors RAID1 Hot spare RAID RAID 30 and 50 Schemes Storage Capacities for Xserve RAID Schemes Xserve RAID Hardware Connections Connecting a 14-Drive System to a Host Computer or Switch Connecting a Four-Drive System to a Host Computer or SwitchCommon RAID Terms GlossaryPage Fibre Channel PCI Card Specifications RAID Controller SpecificationsSpecifications UPS Interface Specifications Apple Drive Module SpecificationsDimensions and Operating Environment Ethernet SpecificationsPin D connector Cooling Module Specifications Power Supply SpecificationsBattery Module Optional Information Important Safety Information Safety, Maintenance, and ErgonomicsCleaning Your Equipment Power SupplyHandling Your System Safety, Maintenance, and Ergonomics Page Complies with European Directive 89/336/EEC