From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <94bd3605d8bf0bf7c67c0e56b6a3ee05@quanstro.net> From: erik quanstrom Date: Wed, 28 Nov 2007 18:29:30 -0500 To: 9fans@cse.psu.edu Subject: Re: [9fans] venti wrarena i/o errors In-Reply-To: <732f0af01df4a24f0cea8a11046f4817@tombob.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Topicbox-Message-UUID: 0e32de8c-ead3-11e9-9d60-3106f5b1d025 forgive the silly question, but have you verified that these offsets are not beyond the end of the partition? you can test reading partitions easily with dd -if /dev/sdC0/isect -of /dev/null -bs 64k it wouldn't be too hard to write a scrubber that reads and then rewrites the disk. it should try the rewrite twice in case the bad block allocation policy is to return a write error and then allocate a spare block. (this is the case with many drives.) - erik