swap space
Kris Kennaway
kris at obsecurity.org
Tue May 3 14:21:06 PDT 2005
On Tue, May 03, 2005 at 03:15:54PM -0600, Chad Leigh -- Shire.Net LLC wrote:
>
> On May 3, 2005, at 3:07 PM, Kris Kennaway wrote:
>
> >On Tue, May 03, 2005 at 03:02:11PM -0600, Chad Leigh -- Shire.Net
> >LLC wrote:
> >
> >>
> >>On May 3, 2005, at 2:45 PM, Kris Kennaway wrote:
> >>
> >>>Since it's a pain to add swap later you want to make
> >>>allowances for future expansion (e.g. you'd need 32GB of swap if you
> >>>ever plan to add 32GB of RAM).
> >>>
> >>
> >>I understand that people recommend as much swap as you have ram or
> >>more. However, is this required and why? I have a dual opteron
> >>system running i386 5.3-release (with released patches) and it has
> >>4GB RAM and only 2GB of swap, which is hardly ever touched, and when
> >>it is, just in small amounts.
> >>
> >>Why is this a problem? (If it ever needs the 2gb of swap I am in
> >>trouble as the load at that time would be sky high and the machine
> >>not really responsive anyway)
> >>
> >
> >I explained in my email..you need it to dump the kernel.
> >
>
> Thanks!
>
> Well, on my production system, I am not dumping any kernels. Once It
> crashes, I reboot it and go back into production. Anything dumped
> would get wiped out. Luckily I am pretty conservative and only move
> to new versions of the OS when they have been released a while and so
> my machines have not had panics in years.
It's up to you, of course, but it's been my experience that you might
regret the small expenditure of a few gigabytes one day when you do
run into a panic you need help to solve...
Kris
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-questions/attachments/20050503/e1c6936b/attachment-0001.bin
More information about the freebsd-questions
mailing list