Users Guide

13 RAID Controller Batteries..........................................................................................................................104
Battery Properties And Tasks....................................................................................................................................... 104
Battery Tasks.................................................................................................................................................................. 105
To Locate Delay Learn Cycle In Storage Management..............................................................................................105
14 Physical Disks Or Physical Devices........................................................................................................... 106
Guidelines To Replace A Physical Disk Or Physical Device....................................................................................... 106
Adding A New Disk To The System..............................................................................................................................106
For SAS Controllers.................................................................................................................................................. 107
Replacing A Physical Disk Receiving SMART Alerts.................................................................................................. 107
Disk Is Part Of A Redundant Virtual Disk...............................................................................................................107
Disk Is Not Part Of A Redundant Virtual Disk....................................................................................................... 107
Other Disk Procedures...................................................................................................................................................108
Physical Disk Or Physical Device Properties...............................................................................................................108
Physical Disk Or Physical Device Tasks........................................................................................................................ 112
Physical Disk Tasks..........................................................................................................................................................112
Blinking And Unblinking A Physical Disk ................................................................................................................ 112
Removing Dead Segments.......................................................................................................................................113
Preparing To Remove................................................................................................................................................113
Rebuilding Data..........................................................................................................................................................113
Canceling A Rebuild.................................................................................................................................................. 113
Assigning And Unassigning Global Hot Spare........................................................................................................114
Setting The Physical Disk Online Or Oine........................................................................................................... 114
Performing A Clear Physical Disk And Cancel Clear.............................................................................................115
Enabling Revertible Hot Spare.................................................................................................................................115
Performing Cryptographic Erase.............................................................................................................................116
Convert To RAID Capable Disk................................................................................................................................ 117
Convert To Non-RAID Disk.......................................................................................................................................117
15 Virtual Disks.............................................................................................................................................. 118
Considerations Before Creating Virtual Disks.............................................................................................................. 119
Virtual Disk Considerations For Controllers............................................................................................................119
Virtual Disk Considerations On Systems Running Linux...................................................................................... 120
Number Of Physical Disks Per Virtual Disk........................................................................................................... 120
Number Of Virtual Disks Per Controller..................................................................................................................121
Calculation For Maximum Virtual Disk Size............................................................................................................121
Channel-Redundant Virtual Disks............................................................................................................................121
Creating Virtual Disks.....................................................................................................................................................122
Reconguring Or Migrating Virtual Disks.................................................................................................................... 122
Starting And Target RAID Levels For Virtual Disk Reconguration And Capacity Expansion............................... 122
Maintaining The Integrity Of Redundant Virtual Disks...............................................................................................123
Rebuilding Redundant Information............................................................................................................................... 123
Managing Virtual Disk Bad Block Management..........................................................................................................124
Recommendations For Clearing Bad Blocks............................................................................................................... 125
Virtual Disk Properties And Tasks.................................................................................................................................125
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