An independent disk pool is a collection of disk units that can be brought online or taken offline independent of the rest of the storage on a system. If you have the necessary authority, you can check whether independent disk pools are configured on your system.
In iSeries Navigator expand your iSeries server --> Configuration and Service --> Hardware
--> Disk Units --> Disk Pools.
All of the disk pools that are configured on your system will appear in the Disk Pools
folder. Independent disk pools are numbered 33-255.
Do you use independent disk pools?