478 DS8800 Performance Monitoring and Tuning
13.1.4 Disk pools in IBM i
The disk pools in IBM i are referred to as auxiliary storage pools (ASPs). The following types
of disk pools exist in IBM i:
System ASP
User ASP
Independent ASP
System ASP
The system ASP is the basic disk pool for IBM i. This ASP contains the IBM i boot disk (load
source), system libraries, indexes, user profiles, and other system objects. The system ASP is
always present in IBM i and is needed for IBM i. IBM i does not IPL (boot) if the system ASP is
inaccessible.
User ASP
A user ASP separates the storage for different objects for easier management. For example,
the libraries and database objects that belong to one application are in one user ASP, and the
objects of ...