Date: Thu, 15 Oct 2009 01:11:37 +0200 From: Solon Lutz <solon@pyro.de> To: Pawel Jakub Dawidek <pjd@FreeBSD.org>, freebsd-fs@FreeBSD.ORG Subject: Re: Help needed! ZFS I/O error recovery? Message-ID: <572088116.20091015011137@pyro.de> In-Reply-To: <20091014210528.GC1727@garage.freebsd.pl> References: <756365088.20091013005202@pyro.de> <20091013055754.GA3197@garage.freebsd.pl> <90685589.20091013092418@pyro.de> <20091013072712.GA1597@garage.freebsd.pl> <12910471099.20091013095322@pyro.de> <20091013075511.GC1597@garage.freebsd.pl> <1433853337.20091013100348@pyro.de> <20091013082116.GE1597@garage.freebsd.pl> <673550066.20091013133544@pyro.de> <473227349.20091014184731@pyro.de> <20091014210528.GC1727@garage.freebsd.pl>
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>> I just tried it with more TXGs, even with a jump of -300, but it always gives >> an "cannot iterate filesystems: I/O error" error if I try to import the pool. >> Also because of mounting the pool, the TXg has gone up to 13445935 from >> initially 13462284. > We can try to turn off checksum verification entirely, but it will most > likely just panic your system. > If you want to do this, edit > sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/spa.h file and change > ZIO_CHECKSUM_EQUAL() macro to something like this: > #define ZIO_CHECKSUM_EQUAL(zc1, zc2) (1) Yes, it paniced as soon as I tried zpool import. Can you tell where ZFS is taking the information from, that there are I/O errors? Is this based on checksums or is there some kind of I/O-error-flag? solon
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