Users Guide

Tape Drive Properties......................................................................................................................................................103
13 RAID Controller Batteries........................................................................................... 104
Battery Properties And Tasks..........................................................................................................................................104
Battery Tasks..................................................................................................................................................................105
Battery — Available Tasks.............................................................................................................................................. 105
Starting A Learn Cycle.............................................................................................................................................. 105
Battery Transparent Learn Cycle...............................................................................................................................106
Initiating The Battery Delay Learn Cycle....................................................................................................................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...................................................................................................................................................107
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....................................................................................................................................................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 .................................................................................................................... 113
Removing Dead Segments.........................................................................................................................................113
Preparing To Remove.................................................................................................................................................113
Rebuilding Data..........................................................................................................................................................113
Canceling A Rebuild................................................................................................................................................... 114
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...................................................................................................................................116
Convert To Non-RAID Disk........................................................................................................................................ 117
15 Virtual Disks................................................................................................................ 118
Considerations Before Creating Virtual Disks................................................................................................................... 118
Virtual Disk Considerations For Controllers................................................................................................................ 118
Virtual Disk Considerations On Systems Running Linux............................................................................................. 119
Number Of Physical Disks Per Virtual Disk................................................................................................................120
Number Of Virtual Disks Per Controller.....................................................................................................................120
Calculation For Maximum Virtual Disk Size................................................................................................................120
Channel-Redundant Virtual Disks..............................................................................................................................120
Creating Virtual Disks.......................................................................................................................................................121
Reconguring Or Migrating Virtual Disks......................................................................................................................... 121
Starting And Target RAID Levels For Virtual Disk Reconguration And Capacity Expansion.............................................121
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