Private memory pools (also known as user-defined memory pools)
can be used by IBM-supplied subsystems or by user-defined subsystems. You
can define up to a maximum of 10 memory pool definitions for a subsystem.
You create a private memory pool in the subsystem description.
To create a private memory pool, use the character-based interface.
Command: Create Subsystem Description (
CRTSBSD)
POOLS parameter.
Command:
Change Subsystem Description (CHGSBSD) POOLS parameter.
Note: Although each subsystem description can have as many as 10
user-defined memory pools, there is an operation limitation of no more than
64 memory pools that can be active at any time. (This includes the Base memory
pool and the Machine memory pool.) If the maximum allocation limit is reached
before all of the memory pools for a subsystem are allocated, the Base pool
is used for any routing steps that still require a memory pool.