Date: Thu, 13 Mar 2008 15:24:32 +0100 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-questions@freebsd.org Subject: Re: 16GB RAM -> Swap? Message-ID: <frbd6d$rba$1@ger.gmane.org> In-Reply-To: <20080313131549.GA7984@aurora.oekb.co.at> References: <20080313131549.GA7984@aurora.oekb.co.at>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig60B679DF8B9ECFB26978B037 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Ewald Jenisch wrote: > Hi, >=20 > I've got a Blade-system with 16GB RAM, but "only" one 140GB > harddisk. My question is about swap-space: Traditional knowledge > recommends swap =3D 2*RAM. This would mean 32GB swap (!). >=20 > Should I really go for 32GB swap space? Or will e.g. 16GB (=3D RAM-size= ) > be enough?=20 >=20 > Please note, that I don't do kernel debugging etc. on this machine - > just a production machine used for network monitoring (Mrtg, nfsen, > cacti) The only thing you would probably need swap for on such a machine is to catch kernel core dumps in case something goes wrong. And if you're running 7.0, the dumps no longer include entire memory so you'll need much less space (AFAIK, upto kmem_size will be dumped, and this is limited to 2 GB right now). You don't need any swap at all, but I'd still recommend something like 2 GB, just in case. --------------enig60B679DF8B9ECFB26978B037 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFH2TkgldnAQVacBcgRAnVnAKDieay4J6bKmfj+tPBEjcwQinO0iACg3YwY 9fIv0XTj+NBeQXcuax77gM0= =Gpit -----END PGP SIGNATURE----- --------------enig60B679DF8B9ECFB26978B037--
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