Disk array capacities
These guidelines help you calculate the capacity of a disk array.
The capacity of a disk array depends on the capacity
of the disks that are used and the RAID level of the array. To calculate
the capacity of a disk array, use the following methods:
- RAID 5
- Multiply one fewer than the number of disks by the disk capacity.
- RAID 6
- Multiply two fewer than the number of disks by the disk capacity.
- RAID 10
- Multiply the number of disks by the disk capacity and divide by 2.
- System mirroring
- Multiply the number of disks by the disk capacity and divide by two.
Note: If disks of different capacities are used in
the same disk array, all disks are treated as if they have the capacity
of the smallest disk.