[CentOS] How to Increase Swap Memory in Centos 4.4?

Tue Apr 3 15:20:41 UTC 2007
John Summerfield <debian at herakles.homelinux.org>

Bart Schaefer wrote:
> On 4/3/07, Pham Hai <haisoncompany at gmail.com> wrote:
>> To install Oracle Database 10g, I need to increase the swap memory to 
>> 1004
>> MB.
> 
> Tangential aside:  Does anyone have an informed opinion on whether the
> "swap should be double RAM" rule still makes sense?

It never did. I couldn't see why, if I upgraded my Pentium from 64 
Mbytes+128 Mbytes I should add swap if I added 128 Mbytes RAM.


> 
>> Couldsomebody explain how to do this the fastest way? Thanks!
> 
> Assuming you've got the free disk space:
> 
> # dd if=/dev/zero of=swapfile bs=1024 count=512K
> # mkswap swapfile
> # swapon swapfile
> 
> (replace "swapfile" above with an appropriate path for your system).
> 
> Eventually you should make a permanent swap out of a real disk
> partition, perhaps by adding a drive to the machine.

Why?



-- 

Cheers
John

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