Apple NMB-003 manual System With 14 Drive Modules

Page 73

A System With 14 Drive Modules

On a system with 14 drive modules, you can use these RAID levels.

mRAID 0

mRAID 00

mRAID 1

mRAID 10

mRAID 0+1

mRAID 3

mRAID 5

mRAID 30

mRAID 50

Note: This list is representative but does not include all possible schemes.

RAID 0 and RAID 00 Schemes

With seven drive modules on each controller, you can stripe each side into a RAID set.

RAID 0

Appears

as

Stripe

Stripe

Disk 1

Disk 2

Using software RAID (Disk Utility), you can stripe the two RAID sets together.

RAID 00

Appears

as

Stripe

Stripe

Disk 1

Use software RAID to stripe

two RAID sets together.

Planning RAID Storage for the Xserve RAID System

73

Image 73
Contents User’s Guide Apple Computer, Inc. All rights reserved Apple Computer, IncContents Connecting Xserve RAID to a Host System and a Network Installing the SystemUsing the Xserve RAID System Installing or Replacing ComponentsConnecting a 14-Drive System to a Host Computer or Switch Installing Xserve RAID Hardware and SoftwareData Storage Methods RAID OverviewAppendix 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 Guidelines for Installation Preparing to Install Xserve RAID in a RackPrecautions for Handling the System Use your leg muscles to liftChoosing 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 Installing the system in a rack or cabinet Setting Up the Xserve RAID SystemInstalling Xserve RAID Hardware and Software RAID OverviewAbout RAID Storage Connecting to an Ethernet networkScalability for expansion of storage How RAID WorksData 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 Dimensions and Operating Environment Apple Drive Module SpecificationsEthernet Specifications UPS Interface 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