Determine the number of subsystems using a memory pool

Subsystems are allocated a certain percentage of memory to run jobs. It is important to know how many different subsystems are pulling from the same memory pool. After you know how many subsystems are submitting jobs to a pool and how many jobs are running in a pool, you might want to reduce resource contention by adjusting the size and activity level of the pool.

Parent topic: Manage memory pools
Related information
Manage iSeries performance
Basic performance tuning
Applications for performance management
Experience report: The Performance Adjuster

iSeries Navigator

To use iSeries™ Navigator to monitor the number of subsystems that are using a memory pool, do the following:
  1. In iSeries Navigator, expand My Connections > server > Work Management > Memory Pools > Active Pools or Shared Pools.
  2. Right-click the memory pool that you want to work with and click Subsystems.

    From this window you can determine the number of subsystems that are using an individual memory to run their jobs.

Character-based interface

Command: Work with Subsystems (WRKSBS)
This command displays a list of all of the subsystems and their corresponding pools.