Three default random-access disk storage pools are provided at installation. You can add space to these storage pools by adding volumes, or you can define additional storage pools.
As your storage environment grows, you may want to consider how policy and storage pool definitions affect where workstation files are stored. Then you can define and maintain multiple storage pools in a hierarchy that allows you to control storage costs by using sequential-access storage pools in addition to disk storage pools, and still provide appropriate levels of service to users.
To help you determine how to adjust your policies and storage pools, get information about how much storage is being used (by client node) and for what purposes in your existing storage pools. For more information on how to do this, see Obtaining information about the use of storage space.