Historical Page Set Statistics workspace (z/OS systems only)
The Historical Page Set Statistics workspace is available on z/OS® systems only.
The Historical Page Set Statistics workspace shows the performance of the page sets associated with the selected queue manager or buffer pool ID, over the selected period of time for which historical records are available (the default setting is 2 hours). Use it to monitor page and buffer pool usage.
IBM® MQ Monitoring agentalso provides current and recent versions of this workspace, which you can use to view the latest available report data or a recent snapshot of data taken at a particular point in time.
Predefined views
The Historical Page Set Statistics workspace includes the following predefined views:
- Historical Page Set Statistics This view shows the performance
of the page sets associated with the selected queue manager or buffer
pool ID, over the selected period of time for which historical records
are available (the default setting is 2 hours). Use it to monitor
the following conditions:
- Examine the percentage of pages in use and the total number of extents to ensure that no page sets are reaching capacity.
- Examine the number of buffers from the buffer pool that are in used. If it is common for all buffers from the pool to be in use and a page set is responsible for most activity, then performance will adversely affected. Try increasing the size of the buffer pool or assigning the page set to another buffer pool.
- Page Set Utilization This view shows, as a bar chart, page set utilization for the page set IDs associated with the selected queue manager.
For more information on the attributes listed in the tables of this workspace, see Page Set Long-Term History attributes (z/OS systems only).
Predefined links
No other workspaces can be linked to from the Historical Page Set Statistics workspace.