Creating a disk array
A disk array is created using a set of Active Array Candidate pdisks.
For disk arrays with data redundancy (RAID 5, 6, 10, 5T2,
6T2, and 10T2), if all of the pdisks are in the Zeroed state, the
array will become immediately protected against failures. However,
if one or more of the pdisks are not Zeroed, the newly created array
will initially be in the Rebuilding state. It will be unprotected
against disk failures until parity data on all of the disks has been
recalculated. Ensure that all pdisks are placed in a Zeroed state
by selecting Create an Array Candidate pdisk and format to RAID block
size before creating a disk array to fully initialize the pdisks and
provide the shortest time to create the disk array.
A disk array must be created with either all HDDs or SSDs. Disk arrays consisting of HDDs and disk arrays consisting of SSDs may coexist on the same controller.
To create a IBM® SAS Disk Array, do the following:
You can now add the disk array to a volume group. Logical volumes and file systems can also be created. Use standard AIX® procedures to perform these tasks, and treat the array in the same way that you would treat any hdisk.