[olug] adding swapfile

Will Langford unfies at gmail.com
Mon Jan 29 21:33:44 UTC 2007


That'd be it.

Dunno if I like a swap file being located anywhere in a 'tmp' directory
where some root-permissioned script might want to delete it, though.

And it'll get ya around 12GB of swap.

You'll prolly need a startup script or add it to fstab or something to get
it to be used after reboots as well.

-Will



On 1/29/07, Noel Leistad <noel at noelleistad.com> wrote:
>
> been asked to add swap to "production system"
>
> System manages to run w/ single "instance" of SAP, adding "second
> instance", system crashes. Owner suspects SWAP
>
> target system running SAP
>
> 100MB /boot
> 130GB /
> 4G RAM
> NO SWAP
>
> Swap recommendations I've seen
> 4096MB RAM -- > 13300MB Swap??
>
> SO, confirming:
>
> dd if=/dev/zero of=/usr/tmp/newswapfile bs=1024 count=12583000
>
> then
>
> mkswap /usr/tmp/newswapfile
>
> swapon /usr/tmp/newswapfile
>
>
> ??
>
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