Re: paging space size - contempoary best practice.

Sizing the paging file always depend a lot on the application you want to
run.
Anyway, I´d suggest to be always conservative. Running out of paging file
space is one of the few
causes I´ve ever seen a AIX server hang completely.

rgds

On Jan 15, 2008 2:35 PM, Miller, Dave (I.S.) <Dave.Miller@xxxxxxx> wrote:

Does anyone have the 'IBM best practice' for sizing your paging space on
large RAM enabled servers? I know in the past this question had many varied
answers. I'm curious if anyone knows of a specific IBM document that is
relatively recent that has a statement about it.

For example, we are upgrading two servers 32GB to 128GB. My past notes and
research would have me size paging space at 1.5*128=172GB….do folks
generally do this??? Is there a technical reason for it?

Ironically these are some of the very same servers that we strive to keep
utilization of paging space as low as possible…

Thanks for any input you can provide.





---------------------------------
David Miller
Database Architect
Baystate Health System
3601 Main Street, Springfield, MA 01109
413-794-3836, *dave.miller@xxxxxxx* <dave.miller@xxxxxxx>


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Fools ignore complexity. Pragmatists suffer it. Experts avoid it.
Geniuses remove it (Alan J. Perlis)

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