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Reader Feedback and Insights:
Journaling Changed Bytes Only
Hey, Ted:
I thought you might like a little more information about journaling changed bytes only as a follow up to your story in Midrange Guru OS/400 Edition, January 30, 2002.
A customer who took this new support for a spin in March 2001 wrote us and provided measurements that revealed an interesting result. For his particular application, one where his batch update program only needed to update a status flag, a user code, and a timestamp in each record processed, his journal receiver sizes shrank by a whopping 40 percent.
Therefore, if you've got the right environment, this solution can be a winner.
-- Larry Youngren
IBM Rochester
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