Date: Tue, 25 Sep 2007 12:12:04 +0200 From: Bernd Walter <ticso@cicely12.cicely.de> To: Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?= <des@des.no> Cc: Randy Bush <randy@psg.com>, freebsd-fs@freebsd.org Subject: Re: zfs in production? Message-ID: <20070925101204.GQ38890@cicely12.cicely.de> In-Reply-To: <868x6vi0nd.fsf@ds4.des.no> References: <46F7EDD7.6060904@psg.com> <868x6vi0nd.fsf@ds4.des.no>
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On Tue, Sep 25, 2007 at 10:56:22AM +0200, Dag-Erling Smørgrav wrote: > Randy Bush <randy@psg.com> writes: > > we are thinking of using zfs on a production server, using gmirror for > > booting and then following http://wiki.freebsd.org/ZFSOnRoot for the rest. > > > > but we would like to hear from folk using zfs in production for any > > length of time, as we do not really have the resources to be pioneers. > > Works fine, but if using SATA, avoid Promise controllers. It is worse: pool: data state: ONLINE status: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffected. action: Determine if the device needs to be replaced, and clear the errors using 'zpool clear' or replace the device with 'zpool replace'. see: http://www.sun.com/msg/ZFS-8000-9P scrub: none requested config: NAME STATE READ WRITE CKSUM data ONLINE 0 0 0 raidz1 ONLINE 0 0 0 ad4 ONLINE 0 0 5 ad6 ONLINE 0 0 8 ad8 ONLINE 0 0 11 These are WDC WD3200AAKS-00SBA0/12.01B01 connected to an SIL3114. System is amd64 from 26th june on core2quad with ECC RAM. My home system is using the same controller on i386/P3 and has no checksum errors - it is running source from 12th july. Considered that I'd seen lots of silent data corruptions with PATA disks on alpha during the last years I'm not that shure if the problem depends on a specific controller, but more on timing or such. It is easy to blame the controller, especially since SIL isn't known for quality, but in this case I believe it is our problem somehow. -- B.Walter http://www.bwct.de http://www.fizon.de bernd@bwct.de info@bwct.de support@fizon.de
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