Independent disk pool

Independent disk pools provide the ability to group together storage that can be taken offline or brought online independent of system data or other unrelated data. The terms independent auxiliary storage pool (iASP) and independent disk pool are synonymous.

An independent disk pool can be either switchable among multiple systems in a clustering environment or privately connected to a single system. Functional changes to independent disk pools have security implications on your system. For example, when you perform a CRTUSRPRF, you cannot create a user profile (*USRPRF) into an independent disk pool. However, when a user is privately authorized to an object in the independent disk pool, is the owner of an object on an independent disk pool, or is the primary group of an object on an independent disk pool, the name of the profile is stored on the independent disk pool. If the independent disk pool is moved to another system, the private authority, object ownership, and primary group entries will be attached to the profile with the same name on the target system. If a profile does not exist on the target system, a profile will be created. The user will not have any special authorities and the password will be set to *NONE.

Independent disk pools support many library-based objects and user-defined file systems. However, several objects are not allowed on independent disk pools.