Date: Tue, 06 Jan 2015 16:08:50 +0100 From: InterNetX - Juergen Gotteswinter <jg@internetx.com> To: Fervent Dissent <walkerindarkness@gmail.com>, Rainer Duffner <rainer@ultra-secure.de> Cc: freebsd-fs@freebsd.org Subject: Re: zfs corruption after controller failure Message-ID: <54ABFA82.2070401@internetx.com> In-Reply-To: <CALpPS7MObKeFPFYL7dMiGcKG40tFmJELCo782rWPO8wqcGtwmw@mail.gmail.com> References: <CALpPS7NiHJQ09KmitupYyixRYbPtdvVbVRCOPAqXUtqmSd4BVw@mail.gmail.com> <20FB5F2C-65D2-4F33-8D45-DD7FC34A5E2E@ultra-secure.de> <CALpPS7MObKeFPFYL7dMiGcKG40tFmJELCo782rWPO8wqcGtwmw@mail.gmail.com>
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> external usb drive (for sure cheap consumer desktop one) > cheap (maybe even buggy) usb controller > non-mirrored / raidz > probably cheap hardware at all (no ecc, like rainer mentioned for example) what do you expect. zfs is very tolerant, but some basics should be taken care of... but even with a single disk it should be possible to recover / import the pool at least read only Am 06.01.2015 um 16:06 schrieb Fervent Dissent: > I've had power lose before and a previous bad controller cause multiple > problems. The drive would disappear or go offline. I would clear it and go > on no problem. This is the first failure that I have not been able to > recover from. > > On Tue, Jan 6, 2015 at 11:01 PM, Rainer Duffner <rainer@ultra-secure.de> > wrote: > >> >>> Am 06.01.2015 um 15:58 schrieb Fervent Dissent < >> walkerindarkness@gmail.com>: >>> >>> I have a external disk that was on a cheap usb controller, that >> controller >>> died. >> >> >> Maybe I’m mistaken, but I though that if your pool only has a single disk >> and that disk/pool shows errors or becomes unreadable/corrupted/whatever >> you cannot recover it. >> >> Same for not using ECC memory… >> >> >> >> > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" >
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