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
modes, by controller” (page 21)
.
The saconfig configuration CLI
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