HP Surestore Disk Array 12h System Administrator's Guide for HP-UX, MPE, and W - Page 133

Setting, Default, Command, Option, Comments and Considerations

Page 133 highlights

MPE Using the ARM Command Line Utilities for MPE Changing Disk Array Configuration Settings Setting Active Spare Auto Rebuild Auto Include Rebuild Priority Table 17. arraymgr Disk Array Configuration Settings Default On On On High Command Option -h -a -i -p Comments and Considerations Active Hot Spare provides optimum protection against disk failure. Disabling Active Hot Spare will make additional capacity available to the host, but at the expense of maintaining full data redundancy. Auto Rebuild provides optimum protection against disk failure by rebuilding a failed disk as quickly as possible. Disabling Auto Rebuild gives you more control over the rebuild process, but it can leave the disk array vulnerable to a second disk failure until a Rebuild is performed manually. Auto Include simplifies the task of adding a new disk to your array. Disabling it will require you manually to include each disk you install in the array. Rebuild priority determines how quickly a Rebuild operation will complete. To change Active Spare, Auto Rebuild, or Auto Include settings, type: arraymgr { -h | -a | -i } { on|off } To change Rebuild Priority setting, type: arraymgr -p { high|low } 133

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Using the ARM Command Line Utilities for MPE
Changing Disk Array Configuration Settings
133
MPE
Table 17. arraymgr Disk Array Configuration Settings
Setting
Default
Command
Option
Comments and Considerations
Active
Spare
On
-h
Active Hot Spare provides optimum
protection against disk failure. Disabling
Active Hot Spare will make additional
capacity available to the host, but at the
expense of maintaining full data
redundancy.
Auto
Rebuild
On
-a
Auto Rebuild provides optimum protection
against disk failure by rebuilding a failed
disk as quickly as possible. Disabling Auto
Rebuild gives you more control over the
rebuild process, but it can leave the disk
array vulnerable to a second disk failure
until a Rebuild is performed manually.
Auto
Include
On
-i
Auto Include simplifies the task of adding
a new disk to your array. Disabling it will
require you manually to include each disk
you install in the array.
Rebuild
Priority
High
-p
Rebuild priority determines how quickly a
Rebuild operation will complete.
To change Active Spare, Auto Rebuild, or Auto Include settings, type:
arraymgr { -h | -a | -i } { on|off } <array-id
>
To change Rebuild Priority setting, type:
arraymgr -p { high|low } <array-id
>