|
IPLs reclaim temporary storage. I have 298GB in temp storage on one lpar
alone. Which is probably more than the total disk space on his V4R3
machine.
DSPSYSSTS
Auxiliary storage:
System ASP . . . . . . : 7307 G
% system ASP used . . : 83.8611
Total . . . . . . . . : 7307 G
Current temporary used : 298546 M
Peak temporary used . : 350289 M
However too frequent IPLs can have a negative impact on performance. Some
of this temporary storage is Db2's version of AI to memorize how to run
particular queries for the best performance. You lose that at every IPL
and it has to start over. Ever notice how certain jobs seem to run slower
on Monday? It's not just a hangover from the weekend.
Rob Berendt
As an Amazon Associate we earn from qualifying purchases.
This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].
Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.