VTAM buffer pools are a critical storage resource shared between SNA and TCP/IP. The VTAM Buffer History reports provide both a global and a detailed view of this shared resource. The reports include:
The data provided in these reports is collected via periodic D NET,BFRUSE commands issued by the Host Monitor and saved in VSAM data sets. The parameter governing the time interval for the periodic collection is: VTAMBUFINTERVAL which is set in CONF00.
To view a VTAM Buffer Pool History Report, perform the following steps:
1. Click on the History tab.
2. Click the VTAM Buffer History hyperlink. The VTAM Buffer Pool Reports main screen appears.
Figure 151. VTAM Buffer Pool Reports Filter
3. Check either the Show Graph or Show Report radio button.
4. Select the type of report you wish to view from the Report list.
5. Enter a Start Date for the data you wish to view. The year must be four digits.
6. Enter a Start Hour for the data you wish to view. If you do not enter a Start Hour, it is assumed to be zero (midnight).
7. Check one of the View {number} Hours radio boxes for the number of hours of data you wish to view starting at the hour specifed in the Start Hour field.
8. Select a buffer pool name if you are doing a report for a specific buffer pool.
9. Click Submit. The report screen appears if data was found for your selection criteria.
10. Use the Back Arrow on your browser to return to the VTAM Buffer Pool Reports screen.
11. If you would like to view a different type of report, select it from the Report list and repeat Steps 5-10.
The following reports are provided:
Usage for All Buffer Pools |
Graphs or tabular reports of the number of buffers used for all buffers for the time period chosen. |
Usage for Specific Pool |
Graphs or tabular reports of the number of buffers used for a specific buffer for the time period chosen. |
Times in Expansion (All Pools) |
Graphs or tabular reports of the number of buffers used for all buffers when the buffer pool is in dynamic expansion mode for the time period chosen. |
Details for All Buffer Pools |
Tabular report of all data gathered for all buffers for the time period chosen. |
Details for Specific Pool |
Tabular report of all data gathered for a specific buffer for the time period chosen. |
See also: