Date: Thu, 7 Feb 2002 11:54:02 -0600 From: Dan Nelson <dnelson@allantgroup.com> To: Markus Stumpf <maex-freebsd-hackers@Space.Net> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: dump(8) race conditions? Message-ID: <20020207175402.GA79258@dan.emsphone.com> In-Reply-To: <20020207185052.A87994@Space.Net> References: <20020207185052.A87994@Space.Net>
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In the last episode (Feb 07), Markus Stumpf said: > We use amanda and dump for backups. Some hosts have rather busy disks > even during non prime time hours when backup is run. > > >From time to time amanda reports dump(8) errors like the following: > > ? DUMP: read error from /dev/rda4s1e: Invalid argument: [block -410921522]: count=3072 > ? DUMP: DUMP: read error from /dev/rda4s1e: Invalid argument: [sector -410921522]: count=512 > ? DUMP: read error from /dev/rda4s1e: Invalid argument: [block -410921532]: count=5120 > ? DUMP: read error from /dev/rda4s1e: Invalid argument: [block -1001057530]: count=1024 > [ ... ] Dump should ideally be run on an unmounted filesystem. The next best is to create a snapshot ( /usr/src/sys/ufs/ffs/README.snapshot ) and dump that. -- Dan Nelson dnelson@allantgroup.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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