Re: BRMS sometimes saves entire IFS

<https://www.ibm.com/support/pages/why-brms-saves-more-data-expected-when-saved-ifs-link-lists>https://www.ibm.com/support/pages/why-brms-saves-more-data-expected-when-saved-ifs-link-lists
That seems to talk about when it decides to do a full or incremental, but I must be dense today. It doesn't seem to me like it explains how it decides.

On Fri, 2020-04-17 at 08:18 -0500, Joe Pluta wrote:

Yes, we're researching reducing SAVSECDTA time. That will involve

switching to authorization lists (which we should be doing anyway), but

that project hasn't been scheduled yet. This IFS issue is a different

issue that has been happening infrequently for some time now. And

looking at the logs, I don't understand it at all.


We've got this in our backup:


Auxiliary Weekly Incremental Full Retain

Save List Storage Activity Media Media Object

Item Type Pool Device MTWTFSS Policy Policy Detail

*LINK *ALLAVL IIIIIFI DAILY DAILY *YES


But from what I can tell, the system did a complete IFS save on 3/23,

3/27, 3/30, 4/06, 4/10, 4/13 and today, 4/17. I only base that on the

number of IFS objects saved (2 million vs a few thousand). I cannot

tell from the logs which type BRMS attempted. Weirdly, it doesn't seem

to me that it is EVER doing a complete IFS backup on Saturdays (3/21,

3/28, 4/4, 4/11).


4/13 was unusual in that it was an ad-hoc mid-month save during the

day. The rest all occured during our overnight processing, in which the

IFS *LINK portion usually kicks off around 2AM (unless SAVSECDTA goes long).