Date: Sun, 27 Oct 1996 03:45:26 +0100 From: Michael Beckmann <petzi@zit.th-darmstadt.de> To: hardware@freebsd.org, scsi@freebsd.org Subject: SCSI harddisk trouble: MEDIUM ERROR Message-ID: <v03007800ae987904fb85@[130.83.63.13]>
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Hello, since a couple days I'm getting messages from my harddisk like Oct 27 03:26:58 zit1 /kernel: , retries:2 Oct 27 03:26:58 zit1 /kernel: sd0(ncr0:0:0): MEDIUM ERROR info:3b13fe asc:11,b Oct 27 03:26:58 zit1 /kernel: sd0(ncr0:0:0): Unrecovered read error - recommend reassignment sks:80,32 Oct 27 03:26:58 zit1 /kernel: , retries:1 Oct 27 03:26:58 zit1 /kernel: sd0(ncr0:0:0): MEDIUM ERROR info:3b13fe asc:11,b Oct 27 03:26:58 zit1 /kernel: sd0(ncr0:0:0): Unrecovered read error - recommend reassignment sks:80,32 Oct 27 03:26:58 zit1 /kernel: , FAILURE Oct 27 03:26:58 zit1 /kernel: sd0(ncr0:0:0): MEDIUM ERROR info:3b13fe asc:11,b Oct 27 03:26:58 zit1 /kernel: sd0(ncr0:0:0): Unrecovered read error - recommend reassignment sks:80,32 Oct 27 03:26:58 zit1 /kernel: , retries:4 Oct 27 03:26:58 zit1 /kernel: sd0(ncr0:0:0): MEDIUM ERROR info:3b13fe asc:11,b Oct 27 03:26:59 zit1 /kernel: sd0(ncr0:0:0): Unrecovered read error - recommend reassignment sks:80,32 Oct 27 03:26:59 zit1 /kernel: , retries:3 Oct 27 03:26:59 zit1 /kernel: sd0(ncr0:0:0): MEDIUM ERROR info:3b13fe asc:11,b Oct 27 03:26:59 zit1 /kernel: sd0(ncr0:0:0): Unrecovered read error - recommend reassignment sks:80,32 Oct 27 03:26:59 zit1 /kernel: , retries:2 Oct 27 03:26:59 zit1 /kernel: sd0(ncr0:0:0): MEDIUM ERROR info:3b13fe asc:11,b Oct 27 03:26:59 zit1 /kernel: sd0(ncr0:0:0): Unrecovered read error - recommend reassignment sks:80,32 Oct 27 03:26:59 zit1 /kernel: , retries:1 Oct 27 03:26:59 zit1 /kernel: sd0(ncr0:0:0): MEDIUM ERROR info:3b13fe asc:11,b Oct 27 03:26:59 zit1 /kernel: sd0(ncr0:0:0): Unrecovered read error - recommend reassignment sks:80,32 Oct 27 03:27:00 zit1 /kernel: , FAILURE I took the disk out of the system, and checked its configuration. AWRE and ARRE were set. I thought the disk was supposed to automatically reassign bad blocks in this configuration ? This seems not to work, the grown defect list had no entry. I reassigned three blocks manually, which were reported as being unreadable by fsck. But now I'm getting these errors again. fsck gave me a decimal block number for the bad block, how can I tell which block is bad here ? Is there a way to run a disk check under FreeBSD, which finds (and reassigns) bad blocks ? Is there a good way to reassign blocks automatically, and avoid the problems that follow these medium errors ? BTW. This disk has been running over 1 year, 24h a day now. Cheers, Michael
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