Apple NMB-003 manual RAID 1 and RAID 3 or

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RAID 3 and 5 Schemes

You can use RAID 3 or 5 with or without a drive module designated as a hot spare on each controller, or you can create four RAID sets and use Disk Utility to stripe or mirror the sets on the same or separate controllers.

RAID 3 or 5

Appears

as

RAID 3 or 5

RAID 3 or 5

Disk 1

Disk 2

RAID 3 or 5
		Appears
		as
RAID 3 or 5	RAID 3 or 5	Disk 1	Disk 2
Hot spare	Hot spare

RAID 1 and RAID 3 or 5

Mirrors RAID1 Hot spare RAID 0 or

RAID 3 or 5

Appears	Disk 1		Disk 2
as

	Disk 3		Disk 4

Planning RAID Storage for the Xserve RAID System

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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 Installing the System Prepare the System for InstallationFollow 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 Installing the Host Bus Adapter Card in the Host System Connecting Xserve RAID to a Host System or SwitchAbout 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 Connecting an Uninterruptible Power Supply Plug one of the system’s power cords into the UPSFollow 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 Installing or Replacing an Apple Drive Module Follow these steps to install or replace a 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 3 requires a minimum of three drives RAID 5 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 Xserve RAID Schemes RAID RAID 0+1System 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 RAID Controller Specifications Fibre Channel PCI Card SpecificationsSpeciﬁcations UPS Interface Specifications Apple Drive Module SpecificationsDimensions and Operating Environment Ethernet SpecificationsPin D connector Power Supply Specifications Cooling Module SpecificationsBattery Module Optional Information Important Safety Information Safety, Maintenance, and ErgonomicsPower Supply Cleaning Your EquipmentHandling Your System Safety, Maintenance, and Ergonomics Page Complies with European Directive 89/336/EEC