Using the Command Line Interface
Creating a RAID 5
When creating a RAID 5, you need to determine the stripe size that is most suitable for your environment. See Creating a RAID 0 for more information about determining the appropriate stripe size for your environment.
To recreate the data of a failed disk in a RAID 5, you use a form of redundancy called parity. When you set up parity, you initialize the parity stripes by using a scrubbing switch (/scrub=TRUE). Parity is set up in the background, and the disks are available immediately.
The /scrub switch is not available in UNIX/Linux. For UNIX/ Linux, the RAID 5 is always created by building.
To create a RAID 5, use the container create raid5 command. In the following example, a RAID 5 is created on SCSI devices (2,1,0), (2,2,0), and (2,3,0) using 100 M of available space from each SCSI device. The /stripe_size switch specifies that each stripe is 64 K in size.
AAC0> container create raid5 /stripe_size=64K ((2,1,0),
100M) (2,2,0) (2,3,0)
Executing: container create raid5 /stripe_size=65,536 ((CHANNEL=2,ID=1,LUN=0),104,857,600) (CHANNEL=2,ID=2,LUN=0) (CHANNEL=2,ID=3,LUN=0)
Deleting Arrays
To delete an array, use the container delete command. In the following example, array 0 is deleted.
AAC0> container delete 0
Executing: container delete 0
After running the container delete command, use the container list command to verify that the array was deleted. In the following example, no arrays are found on the controller.
AAC0> container list
Executing: container list
No containers found.