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Date:      Fri, 2 Jun 2000 14:11:26 -0400 (EDT)
From:      Greg Skouby <gskouby@ns0.sitesnow.com>
To:        freebsd-questions@freebsd.org
Subject:   vinum help. corrupt raid 5 volume
Message-ID:  <Pine.BSF.4.10.10006021407210.41106-100000@ns0.sitesnow.com>

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Hello,

We have been using RAID5 on a 3.3 release system quite successfully until
the last day. This morning we got these messages in /var/log/messages:

Jun  2 10:10:47 mail2 /kernel: (da3:ahc0:0:4:0): Invalidating pack
Jun  2 10:10:47 mail2 /kernel: raid5.p0.s3: fatal read I/O error
Jun  2 10:10:47 mail2 /kernel: vinum: raid5.p0.s3 is crashed by force
Jun  2 10:10:47 mail2 /kernel: vinum: raid5.p0 is degraded
Jun  2 10:10:47 mail2 /kernel: d: fatal drive I/O error
Jun  2 10:10:47 mail2 /kernel: vinum: drive d is down
Jun  2 10:10:47 mail2 /kernel: raid5.p0.s3: fatal write I/O error
Jun  2 10:10:47 mail2 /kernel: vinum: raid5.p0.s3 is stale by force
Jun  2 10:10:47 mail2 /kernel: d: fatal drive I/O error
Jun  2 10:10:47 mail2 /kernel: biodone: buffer already done


Then we rebooted because the system was locked up and 'vinum start' gave
these errors:

%vinum start
Warning: defective objects

P raid5.p0           R5 State: corrupt  Subdisks:     4 Size:         64
GB
S raid5.p0.s2           State: crashed  PO:     1024 kB Size:         21
GB
S raid5.p0.s3           State: stale    PO:     1536 kB Size:         21
GB
%



I searched the archives and found nothing on how to fix a corrupt system
besides Mr. Lehey mentioning something about vinum start being able to fix
this possibly. Is there anything else I can try?

vinum list produces:


Configuration summary

Drives:         4 (8 configured)
Volumes:        1 (4 configured)
Plexes:         1 (8 configured)
Subdisks:       4 (16 configured)

D a                     State: up       Device /dev/da0h        Avail:
0/22129 MB (0%)
D b                     State: up       Device /dev/da1h        Avail:
0/22129 MB (0%)
D c                     State: up       Device /dev/da2h        Avail:
0/22129 MB (0%)
D d                     State: up       Device /dev/da3h        Avail:
0/22129 MB (0%)

V raid5                 State: up       Plexes:       1 Size:         64
GB

P raid5.p0           R5 State: corrupt  Subdisks:     4 Size:         64
GB

S raid5.p0.s0           State: up       PO:        0  B Size:         21
GB
S raid5.p0.s1           State: up       PO:      512 kB Size:         21
GB
S raid5.p0.s2           State: crashed  PO:     1024 kB Size:         21
GB
S raid5.p0.s3           State: stale    PO:     1536 kB Size:         21
GB






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