Date: Fri, 08 Jun 2007 21:08:08 +0200 From: Ivan Voras <ivoras@fer.hr> To: freebsd-fs@freebsd.org Subject: Re: tunefs question Message-ID: <f4c9er$ph3$1@sea.gmane.org> In-Reply-To: <20070608120659.E75409@delplex.bde.org> References: <99c92b5f0706070804p42da0881kfc866b192be60ed5@mail.gmail.com> <20070608120659.E75409@delplex.bde.org>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig71D83C7605536C43C6D8C0E2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Bruce Evans wrote: > Fragmentation of old, nearly > full, ffs file systems can be very bad (maybe 10 times slower than a > new one). =20 Not only that, but it seems that sometimes (at least in 6.x) the file system can be subtly corrupted when filled to the end, and cannot be recovered even if the files that filled it are deleted and fsck is run. The symptom of this is random lockups when doing file system intensive operations. I'm not mentioning this only because of this thread: http://lists.freebsd.org/pipermail/freebsd-fs/2007-May/003272.html but I seem to have it on one of my servers in production since two weeks ago :( - since a file system has been filled (the "109% used" kind of filled) and freed a couple of times in the period of about a month, the system wedges about once a week (and it's been running fine for two years before this). So, leaving the 8% alone and making sure NOTHING can touch it (e.g. some deamon running under root, generating log files...) seems like a good strategy right now. Either that, or switch to ZFS, which is what I'm planning. --------------enig71D83C7605536C43C6D8C0E2 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGaakYldnAQVacBcgRAm2jAJ9ASH+qHUqJnpO4NRxofLqa3U4+0gCfY8/6 ObfWojnFj5bvS9yQ/8DcXZE= =ObG7 -----END PGP SIGNATURE----- --------------enig71D83C7605536C43C6D8C0E2--
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