Cannot mount one of two Linux software RAID5 arrays on diskpack
Category: Computers > Operating Systems
Asked by: davidfilmer-ga
List Price: $75.00
20 Oct 2006 02:45 PDT
Expires: 19 Nov 2006 01:45 PST
Question ID: 775303
I have 4 120-MB SATA harddrives configured in a software RAID5 array on a SUSE 9.3 Pro machine (ReiserFS filesystem). There are actually TWO md filesystems configured to use these 4 drives (md0 and md1). The first harddrive in the array (/dev/sda) has obviously gone bad. This should not be a killer problem (that's what the "R" in "RAID" is all about). The second (md1) array will mount in degraded mode (and I can see all the data). The first (md0) array will not mount at all. Any attempts to mount md0 will cause the shell to hang forever (and I cannot even 'kill -9' the process). Even if I physically disconnect the faulty drive I cannot mount md0 (though I can still mount md1 in degraded mode). If I look at /proc/mdstat, I see: md1 : active raid5 sdd5 sdb5 sdc5 37543488 blocks level 5, 64k chunk, algorithm 2 [4/3] [_UUU] If I attempt to do this: mdadm -A -R /dev/md0 I get a message (after a somewhat long delay) that md0 is added using 3 of 4 drives. The md0 array then shows up now in /dev/mdstat, but the array still cannot be mounted (hangs forever). I have also attempted --force with the same result.
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Re: Cannot mount one of two Linux software RAID5 arrays on diskpack
From: pss7-ga on 20 Oct 2006 13:06 PDT
have you tried to mount your drives within a newer linux os , like opensuse 10.1 or debian? ubuntu live cd should work too -> the md package on suse 9.3 is quit old (see teh bug list, they provide..) br, patrick
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