Changing the rebuild priority of a logical drive
To set the rebuild priority of logical drives, use the saconfig /dev/cissX -r <low | medium
| high> command.
For example:
# saconfig /dev/ciss5 -r high
In this example, the rebuild priority is set to high for the logical drives under controller ciss5.
Specifying the percentage of cache used for read caching
To specify a percentage of cache to be used exclusively for read caching, use the saconfig
/dev/cissX -C <read_caching_percentage> command.
For example:
# saconfig /dev/ciss5 -C 100
Read cache percentage changed to 100%
You can set the <read_caching_percentage> to 0, 25, 50, 75, or 100 percent of the cache.
Auto-fail missing disks at boot
To enable or disable auto-fail of missing disks at boot, use the saconfig /dev/cissX -F
on|off command.
For example:
# saconfig /dev/ciss5 -F on
Auto-fail missing disks enabled
Creating multiple logical drives in an array
To create multiple logical drives in an array, use the command:
saconfig /dev/cissX -R <RAID level> -p <physical drive id> [-p <physical
drive id> ...]-c <capacity in GB>
For example:
# saconfig /dev/ciss5 –R ADG –p 1I:1:9 –p 1I:1:10 –p 1I:1:11 –p 1I:1:12 –c 10
Logical drive 0 created
Rebuild priority is set to High
NOTE: If you do not specify a capacity using -c <capacity in GB>, the maximum capacity
or the remaining capacity in the array is applied to the logical drive.
Performing RAID level migration
To migrate an existing logical drive to a different RAID level, use the command:
saconfig /dev/cissX -M <Logical drive #> -R <RAID level> [-S <Stripe
size (KB)>]
For example:
# saconfig /dev/ciss5 -M 0 -R 5
Logical drive 0 migrated from ADG to 5
Migrating a logical drive to a different RAID level does not change its capacity.
NOTE: If you do not specify a stripe size using -S <Stripe size (KB)>, the default stripe
size is used.
For information on the RAID levels supported by each Smart Array controller, see “Supported RAID
modes, by controller” (page 21).
The saconfig configuration CLI 51
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