Users Guide

13 RAID Controller Batteries..........................................................................................................................105
Battery Properties And Tasks....................................................................................................................................... 105
Battery Tasks.................................................................................................................................................................. 106
To Locate Delay Learn Cycle In Storage Management..............................................................................................106
14 Physical Disks Or Physical Devices............................................................................................................107
Guidelines To Replace A Physical Disk Or Physical Device........................................................................................107
Adding A New Disk To The System.............................................................................................................................. 107
For SAS Controllers..................................................................................................................................................108
Replacing A Physical Disk Receiving SMART Alerts.................................................................................................. 108
Disk Is Part Of A Redundant Virtual Disk.............................................................................................................. 108
Disk Is Not Part Of A Redundant Virtual Disk.......................................................................................................108
Other Disk Procedures...................................................................................................................................................109
Physical Disk Or Physical Device Properties...............................................................................................................109
Physical Disk Or Physical Device Tasks........................................................................................................................ 113
Physical Disk Tasks..........................................................................................................................................................113
Blinking And Unblinking A Physical Disk ................................................................................................................ 113
Removing Dead Segments.......................................................................................................................................114
Preparing To Remove................................................................................................................................................114
Rebuilding Data..........................................................................................................................................................114
Canceling A Rebuild.................................................................................................................................................. 114
Assigning And Unassigning Global Hot Spare........................................................................................................115
Setting The Physical Disk Online Or Oine...........................................................................................................115
Performing A Clear Physical Disk And Cancel Clear............................................................................................. 116
Enabling Revertible Hot Spare.................................................................................................................................116
Performing Cryptographic Erase............................................................................................................................. 117
Convert To RAID Capable Disk................................................................................................................................ 118
Convert To Non-RAID Disk...................................................................................................................................... 118
15 Virtual Disks.............................................................................................................................................. 119
Considerations Before Creating Virtual Disks............................................................................................................. 120
Virtual Disk Considerations For Controllers...........................................................................................................120
Virtual Disk Considerations On Systems Running Linux.......................................................................................121
Number Of Physical Disks Per Virtual Disk............................................................................................................ 121
Number Of Virtual Disks Per Controller.................................................................................................................122
Calculation For Maximum Virtual Disk Size........................................................................................................... 122
Channel-Redundant Virtual Disks...........................................................................................................................122
Creating Virtual Disks..................................................................................................................................................... 123
Reconguring Or Migrating Virtual Disks.................................................................................................................... 123
Starting And Target RAID Levels For Virtual Disk Reconguration And Capacity Expansion............................... 123
Maintaining The Integrity Of Redundant Virtual Disks...............................................................................................125
Rebuilding Redundant Information............................................................................................................................... 125
Managing Virtual Disk Bad Block Management..........................................................................................................125
Recommendations For Clearing Bad Blocks............................................................................................................... 126
Virtual Disk Properties And Tasks................................................................................................................................. 127
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