V440 Hardware raid and Soft Partitions

From: Andrew Toon (andrew.toon_at_tracegroup.com)
Date: 03/29/04

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    Date: Mon, 29 Mar 2004 20:08:42 +0100
To: <sunmanagers@sunmanagers.org>

    I've raised this call with Sun Support, but thought I might get a
    quicker response using this list.

    I have a new V440 on which I have installed Solaris 9 (12/03) and the
    latest patches. I have configured two of the internals 36 GB disks
    (c1t2d0 and c1t3d0) to use the hardware raid (mirror) that comes with
    the system.

    I would also like to break the mirrored disks up into a number of 2 GB
    slices (Greater than 7 slices in total), so I thought I'd use Soft
    Partitions.

    The soft partitions are created correctly and appear to work fine, I can
    load a filesystem on them and mount them. However when I reboot I get
    the error message below.

    Mar 29 16:52:43 livesys metadevadm: Invalid device relocation
    information detected in Solaris Volume Manager Mar 29 16:52:43

    livesys metadevadm: Please check the status of the following disk(s):

    Mar 29 16:52:43 livesys metadevadm: c1t2d0

    So I use the command "metadevadm -u c1t2d0" to re-create the disk ID,
    this appears to make the soft partitions work again until I reboot at
    which time I get the same error message and have to re-run the
    "metadevadm" command. This only happens when the disks are mirrored
    using the internal hardware raid (command "raidctl"), if I delete the
    raid then when I reboot I no longer get the error message.

    Has anyone seen this before, is it possibly a case that you can't use
    soft partitions if using the hardware raid function of the V440?

    Thanks and I will summarise.

    Andrew Toon
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