Esteemed listers

I've a problem but I haven't any answer to it or better I've different 
answers. 

Say we have a machine with, just to say, 10 Gb of real storage. Only 5 are 
used by the only LPAR defined (actually there's  another very small LPAR, 
but it's real small), which is a WLC LPAR and often it's CPU capped.  5 Gb 
remain unused. I asked why, as I'd like to enlarge my bufferpools in DB2 
(for instance).  I've got these answers:

- Increasing real storage increases cpu overhead to managed more memory 
blocks in a cpu-constrained machine. 
- Increasing real storage causes more workload so more chanches to hit WLC 
capping. 
- It's better to have some spare storage (5 Gb ?). 

Our workload is increasing and we have some occasional paging spikes. DB2 
doesn't perform well due to too small pools. 

According listers' experience, is using the most part/all real  storage 
(perhaps with a spare memory for future incrases) a real problem ? Did 
anyone experimented any problem ? What are guidelines ? 

Thank you in advance

Max Scarpa




----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html

Reply via email to