If you are unfamiliar with IBM's VMA, read the documentation for the utility and make yourself generally aware of setup and options. CA Vtape analysis reports only use a small part of the overall capabilities of VMA and we are not trying to reproduce the operational documentation here. For more information, see the IBM publication DFSMS/MVS Using the Volume Mount Analyzer.
VMAJCL1 parses your SMF data and uses filters to extract records related to tape mount activity and create an extract file. The creation of an extract file allows multiple analysis reports with different variables to be run without having to reprocess all the SMF log data.
The filters allow you to include or exclude data by jobname, data set name, date, time, unit, and other parameters. Refer to the VMA documentation for specific information about filtering data.
The extract file or files are tersed and sent using FTP to us for processing. Using the VMA filters to eliminate tape mounts for workloads that should not be part of the study will reduce the size of the extract files being transmitted and increase the accuracy of the study results.
|
Copyright © 2013 CA.
All rights reserved.
|
|