| 2 GB | 2 GB | 3GB | 3 GB | 3 GB |
Physical drive capacities influence the way you create disk groups and logical devices. Drives in a disk group can be of different capacities (1 GB, or 2 GB, for example) or the same capacity.
Generally speaking, usable capacity is the same as the total disk capacity. (A small area, known as the raid signature is used to store administrative data.) After you define a logical device, you can use the remaining space to define another logical device. The segments that make up the logical device must be the same size on each physical drive.
For example, you can group three 2 GB segments on three physical drives with different capacities, and three 1 GB segments with the remaining space to define a 3 GB logical device. In the following diagram, the logical devices are labeled 1 and 2; 4 GB of usable capacity remain, 2 GB on each drive, labeled 3.
|
|||||
|
|||||
x-1066-ASM-00-08-EN