FreeBSD 5.3 gvinum and growfs

From: Ean Kingston (ean_at_hedron.org)
Date: 03/19/05

  • Next message: John A.: "Re: Ethernet issue: works one way but not another" 
    Date: Fri, 18 Mar 2005 19:09:25 -0500
To: questions@freebsd.org

    Hi,

    How do I make growfs actually grow a gvinum disk on FreeBSD 5.3? I've
    read the man pages, the Handbook, and done some searching with no luck.

    To help understand what I'm trying to accomplish here, I've created a
    filesystem that mounts to /export on a gvinum volume. The volume is
    configured as a mirror. I want to double it's size. To do this I used
    gvinum to add a subdisk to each plex of the mirror (this worked fine).
    gvinum now reports the volume as 32GB (it used to be 16GB).

    The filesystem is still 16GB. When I unmount the filesystem and run
    growfs on the device it claims there is no space to grow:

    # growfs -s 33554432 /dev/gvinum/export
    growfs: we are not growing (8388608 -> 8388608)

    And yet

    # disklabel /dev/gvinum/export
    # /dev/gvinum/export:
    3 partitions:
    # size offset fstype [fsize bsize bps/cpg]
       a: 33554432 0 4.2BSD 2048 16384 0
       b: 33554432 0 swap
       c: 33554432 0 unused 0 0 # "raw" part,
    don't edit
    disklabel: partition c doesn't cover the whole unit!
    disklabel: An incorrect partition c may cause problems for standard
    system utilities

    better still:
    # gvinum list
    2 drives:
    D a State: up /dev/ad1s1g A: 58662/108326
    MB (54%)
    D b State: up /dev/ad0s1g A: 58662/108326
    MB (54%)

    5 volumes:
    ...
    V export State: up Plexes: 2 Size:
    32 GB

    8 plexes:
    ...
    P export.p1 C State: up Subdisks: 2 Size:
    32 GB
    P export.p0 C State: up Subdisks: 2 Size:
    32 GB

    12 subdisks:
    ...
    S export.p1.s0 State: up D: b Size:
    16 GB
    S export.p0.s0 State: up D: a Size:
    16 GB
    S export.p0.s1 State: up D: a Size:
    16 GB
    S export.p1.s1 State: up D: b Size:
    16 GB

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  • Next message: John A.: "Re: Ethernet issue: works one way but not another"

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