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Thread: chg-disk, NFS, and state file lock

  1. #1

    Default chg-disk, NFS, and state file lock

    Hello all,

    I've been wrestling with a chg-disk taper on a Scale Computing NAS device. As far as I can tell from their documentation, they don't support NFS locking at all. All attempts to flush to that taper yields:

    ERROR taper no-tape error [Error locking '<path to vtapes>/state']
    WARNING driver Taper error: "Error locking '<path to vtapes>/state'"

    in the log. To hack around this, I changed Amanda/Changer/ to use:
    state_filename => "/var/lock/amanda/state-" . $config->{name},
    instead of:
    state_filename => "$dir/state",

    But this feels very kludgy, and won't work with a possible secondary amanda server. If NFS locking is unavailable for a vtape, what would be the reasonable behavior? Sendmail style dotlocking an option? Thanks.

  2. #2
    Join Date
    Aug 2008
    Sunnyvale, CA


    The location of the state file for a chg-disk taper can now simply be specified with the changerfile parameter in the changer definition, ie.:

    define changer "local_vtapes" {
    tpchanger "chg-disk:/mnt/vtapes/Daily"
    changerfile "/var/lib/amanda/Daily/state"

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