An independent disk pool contains user data and all of the necessary system information associated with the data. An independent disk pool can be made available (varied on) and made unavailable (varied off) to the server without restarting the system. When an independent disk pool is associated with a switchable hardware group, it becomes a switchable disk pool and can be switched between iSeries™ servers in a clustered environment. An independent disk pool that is not associated with a cluster resource group is dedicated to one iSeries server. Independent disk pools can also function in conjunction with other independent disk pools in a disk pool group. Independent disk pools are numbered 33 through 255.
Before you use independent disk pools in your environment, it is important to understand some key concepts, including important terminology, as well as how independent disk pools work and how they can be beneficial.