Using the Logger › Size the Log Streams

Size the Log Streams

A log stream consists of staging data sets and offload data sets. Size these two pieces individually but with respect to each other.

When sizing log streams, determine the following:

• How much data to keep for review
• The sizes required for your staging and offload data sets

Follow these steps:

1. Use the IBM report utility IXGRPT1.

   This utility provides information concerning how much data is being moved to the offload data sets within an SMF interval.

2. Once you know the average amount of data being moved within an interval, compute the total size required based on the number of intervals needed.

   The number of intervals you needed becomes your retention period.