Date: Wed, 10 May 2006 22:45:10 +1000 From: Alastair Rankine <arsptr@optusnet.com.au> To: freebsd-questions@freebsd.org Subject: Re: Filesystem corruption when drives are mirrored, but not otherwise Message-ID: <3655B84C-03FA-454B-A601-72DCEE8AE4E7@optusnet.com.au> In-Reply-To: <EA1AEB77-8AD4-443C-BDC3-EE963C75E560@optusnet.com.au> References: <EA1AEB77-8AD4-443C-BDC3-EE963C75E560@optusnet.com.au>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --Apple-Mail-1--693297638 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed On 02/05/2006, at 10:18 PM, I wrote: > The story is this: two identical WD 250GB SATA drives, attached to > a Promise FastTrak S150 TX2plus. > > The drives work fine independently (ie non-mirrored). But when I > mirror them using GEOM, I get filesystem corruption (see below for > example fsck output). It seems that this was caused by the (infamous) problem when softupdates and write caching are both enabled. Disabling write caching seems to have fixed the problem. Unfortunately the disk write performance is woeful. There must be a better way surely? Is anyone using GEOM mirrors on ATA disks with softupdates and write caching? If so, what's your secret? --Apple-Mail-1--693297638 content-type: application/pgp-signature; x-mac-type=70674453; name=PGP.sig content-description: This is a digitally signed message part content-disposition: inline; filename=PGP.sig content-transfer-encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (Darwin) iEYEARECAAYFAkRh4FoACgkQ9jqa2eRLIcdZsACfdUP5mKACvpBhvl+Nzzk0sgVT qDEAoNg0P5zaATPl1Iq7IPexdTDV9KkJ =cU7m -----END PGP SIGNATURE----- --Apple-Mail-1--693297638--
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