SMDS Usage workspace (z/OS systems only)
Use the SMDS Usage workspace to get the buffer pool usage information about the SMDS.
The SMDS Usage workspace is available on z/OS® systems running the QSG environment only.
Predefined views
The SMDS Usage workspace includes the following predefined views:
- Block Usage A bar chart view displays the total number of blocks that can store data and space map, the total number of blocks that store data, and the number of blocks that contain active message data.
- Buffer Usage A bar chart view displays the total number of buffers in the pool, the number of buffers that are in use by requests, the number of buffers that are free but currently contain saved data, and the number of free and empty buffers.
- Offloaded Messages A bar chart view displays the number of shared messages in the structure for which the message data has been stored in the data set that is owned by the queue manager.
- Read Saved Percent A bar chart view displays the percentage of read requests (during the current statistics interval) where the correct block was found in a saved buffer, avoiding the need to read the data from the data set.
- Wait Rate Percent A bar chart view displays the percentage of the fraction of requests to acquire a buffer that had to wait for a free buffer.
- SMDS Usage A table view displays the buffer pool usage information for each application
structure that is currently using the SMDS support.
For more information on the attributes listed in this table, see SMDS Usage attributes (z/OS systems only).
Accessing this workspace
You can access this workspace from the QSG CF Structure SMDS Status workspace.