Space announcement


This space provides the same content as before, but the organization of the home page has changed. The content is now organized based on logical branches instead of legacy book titles. We hope that the new structure will help you quickly find the content that you need.


The EXTENDED BUFFER MANAGER (XBM) product gives you the option of recording historical information about the subsystem’s operation to System Management Facilities (SMF) records.

These records can then be analyzed to detect trends and to determine the effectiveness of XBM over time.

This topic includes a description of the record layout for cache statistics and data set statistics of the SMF records. Both tables include the SAS format, for use with SAS reports you may want to create to analyze and format this information.

You turn on SMF reporting through setting XBM options. For more information, see Setting XBM options.


Some of the character strings are 'C' null terminated strings. This should not affect SAS reporting.

This section contains the following topics:

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