VSAM Analysis workspace
The predefined VSAM Analysis workspace contains:
- The VSAM String Utilization bar chart, which shows the percentage of strings
being used to process I/O requests to this VSAM file
- The VSAM Analysis table view, which provides details about the VSAM data
sets allocated to a selected CICS region
Because CICS dumps, traces, transient data, and auxiliary temporary storage
reside in VSAM data sets, you can use the VSAM Analysis table view to locate
a VSAM data set experiencing string waits or excessive control interval (CI)
or control area (CA) splits. Such conditions can adversely affect CICS performance.
You can view current data collected on demand for such items as
- The number of data CA and data CI splits for the VSAM data set
- The number of index CA and index CI splits for the VSAM data set
- The numbers of new data and index extents taken by the VSAM data set
- Mode of access CICS uses to open the data set
- Type of VSAM data set
- Total timeouts from VSAM data sets in record-level sharing (RLS) mode
- The status of the VSAM data set
- Statistics for the number of strings defined, the strings being used,
and the strings with requests queued against them
See also: