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Date:      Mon, 21 Jan 2002 16:07:12 -0500
From:      "tony" <tony@tntpro.com>
To:        "Doug Poland" <doug@polands.org>, <questions@FreeBSD.ORG>
Subject:   RE: faulty vinum plex, need help please
Message-ID:  <CMENKLIECOJCDGNFIDPFIECFCCAA.tony@tntpro.com>
In-Reply-To: <20020121145011.A16617@polands.org>

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have you checked the size of each drive in disklabel? did all 4 really fdisk
and label to 4314?
I just put a size of 0 to use all available space to eliminate this
potential


-----Original Message-----
From: owner-freebsd-questions@FreeBSD.ORG
[mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of Doug Poland
Sent: Monday, January 21, 2002 3:50 PM
To: questions@FreeBSD.ORG
Subject: faulty vinum plex, need help please


Hi,

I'm attempting to create a mirrored and striped vinum volume (raid10)
using 4 identical SCSI disks.  Here's my /etc/vinum.conf:

drive a device /dev/da0s2e
drive b device /dev/da1s2e
drive c device /dev/da2s2e
drive d device /dev/da3s2e

volume dataraid
  plex org striped 512k
    sd length 4314m drive a
    sd length 4314m drive b
    sd length 4314m drive c
    sd length 4314m drive d
  plex org striped 512k
    sd length 4314m drive c
    sd length 4314m drive d
    sd length 4314m drive a
    sd length 4314m drive b

When I do a # vinum list, it reports:
4 drives:
D a                     State: up       Device /dev/da0s2e      Avail:
0/8628 MB (0%)
D b                     State: up       Device /dev/da1s2e      Avail:
0/8628 MB (0%)
D c                     State: up       Device /dev/da2s2e      Avail:
0/8628 MB (0%)
D d                     State: up       Device /dev/da3s2e      Avail:
0/8628 MB (0%)

1 volumes:
V dataraid              State: up       Plexes:       2 Size:         16 GB

2 plexes:
P dataraid.p0         S State: up       Subdisks:     4 Size:         16 GB
P dataraid.p1         S State: faulty   Subdisks:     4 Size:         16 GB

8 subdisks:
S dataraid.p0.s0        State: up       PO:        0  B Size:       4314 MB
S dataraid.p0.s1        State: up       PO:      512 kB Size:       4314 MB
S dataraid.p0.s2        State: up       PO:     1024 kB Size:       4314 MB
S dataraid.p0.s3        State: up       PO:     1536 kB Size:       4314 MB
S dataraid.p1.s0        State: empty    PO:        0  B Size:       4314 MB
S dataraid.p1.s1        State: empty    PO:      512 kB Size:       4314 MB
S dataraid.p1.s2        State: empty    PO:     1024 kB Size:       4314 MB
S dataraid.p1.s3        State: empty    PO:     1536 kB Size:       4314 MB


So dataraid plex 1 appears to be faulty.  Is this a mis-configuration
on my part?  Is it hardware failure?  The read/write performance of the
vinum volume does not appear to have degraded, have I just lost the
mirroring
property?

I'll be thankful for any advice on how to diagnose and fix this situation.

--
Regards,
Doug

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