Date: Thu, 18 Jan 2007 22:28:14 -0500 From: Kris Kennaway <kris@obsecurity.org> To: "W. Josephson" <freebsd@morphisms.net> Cc: freebsd-current@freebsd.org Subject: Re: building a new fileserver Message-ID: <20070119032814.GA83278@xor.obsecurity.org> In-Reply-To: <20070119025156.GB77180@mero.morphisms.net> References: <20070119025156.GB77180@mero.morphisms.net>
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--7JfCtLOvnd9MIVvH Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jan 18, 2007 at 09:51:56PM -0500, W. Josephson wrote: > I'd like to solicit people's opinions about configuring > CURRENT for a new fileserver that we'll be using internally. > I have only recently had hardware available for running anything > other than 6-STABLE so: >=20 > 1. We'd like to use the 16-port 3Ware 9650SE-16. > Does anyone here have experience with this card in > RAID-6 mode under FreeBSD? >=20 > 2. Any one have advice for setting up UFS+gjournal? > I've been using FFS+SU for some time on a number of machines > with filesystems up to about 1TB, but I'm not looking forward > to fsck, even background fsck, on multiple 10TB filesystems. > Does anyone here have experience with UFS+gjournal on large > filesystems? Are there any gotchas to be aware of when > configuring? Can someone describe briefly what guarantees > UFS+gjournal makes? One gotcha with gjournal is that there is apparently still at least one pretty obscure data corruption bug lurking. I see this when doing concurrent package builds on a 12 cpu system with a single gjournal data store, although I haven't run this configuration for a few months. Kris --7JfCtLOvnd9MIVvH Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFFsDrOWry0BWjoQKURAjFoAKD6Zbebie5LcVL2hhyzi6SIuxS2uwCfTl/Z qNX7C7RbTS8VojfCR6+1lQ0= =za7I -----END PGP SIGNATURE----- --7JfCtLOvnd9MIVvH--
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