Re: AIX server running out of paging space

jeffchirco_at_gmail.com wrote:
> Not yet. My system is running fine at the moment. But I will change
> the ulimit settings.
> My system admin talked with IBM about setting paging space to 2x
> physical memory. They said that with 8GB physical memory and then
> setting virtual memory to twice that would be just overkill. They said
> in the days when memory was only around 512 or a gig then doubleing it
> would make sence. What does everybody else think of that?
>

Once upon a time, in aixshire, a technique called early allocation of paging space was used. If a page was loaded in physical memory (and it was not on storage disk) then a portion of paging space was reserved.

In solarisland something similar was being used: all anonymous memory was backed in swapping space.

So to have a paging (swap for solaris) space twice the dimension of physical memory made sense.

Today the VMs and the allocation algorithms changed and that raccomandation is a little bit outdated.

Regards

-- 
Fabrizio Magni

fabrizio.magni_at_mycontinent.com

replace mycontinent with europe