Re: OT (slightly) swap limits

["Damon L. Chesser" <damon@damtek.com>]

Damon L. Chesser wrote:
> Being in an interview loop looking for employment, I find I am asked 
> questions I never considered, for example:  How much is enough swap?
>
> Simple, right?  Try answering it.  Used to be the limit was 2G 
> files/partitions with up to 8 partitions total.  This does not apply 
> anymore:  I have seen customers with 32G of swap.
>
> Not wanting to talk about what they did with 32G of swap, but I am 
> trying to find documentation for the limits and the rules now.
>
> For example: 2xRAM (or 1.5) is not considered valid any more is it?  
> If you have 64G of ram, you need 128G of swap.  But in truth I don't 
> know and I am not finding much on google (lots covering the 2G OLD 
> limit).  What I want is documentation so I am not working off of 
> opinion (read religious belief).
>
> Got any links you want to share?
Well,

it is nice to know I was not nuts in my answer to their question.  I 
thought perhaps technology moved ahead of me or I forgot something and I 
did not get the memo.  But to be more clear, I am talking about 
servers.  Anybody do anything different with servers or do we still 
stick with the 1.5/2X rule or perhaps the RH S=M+1 for >2G rule (with 
the nice stipulation that perhaps for machines with really large amounts 
of RAM you MIGHT use less)?

--
Damon L. Chesser
damon@damtek.com
http://www.linkedin.com/in/dchesser