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       dpm-drain - drain a component of the Light Weight Disk Pool Manager


       dpm-drain  --poolname pool_name [ --server fs_server ] [ --gid gids ] [
       --group groups ] [ --size amount_to_drain ]

       dpm-drain --server fs_server [ --gid gids ] [ --group groups ] [ --size
       amount_to_drain ]

       dpm-drain  --server  fs_server  --fs  fs_name  [ --gid gids ] [ --group
       groups ] [ --size amount_to_drain ]

       dpm-drain --help


       dpm-drain drains a component of the Light Weight Disk Pool  Manager:  a
       filesystem,  a  disk server or a pool, optionally filtered by a list of
       gids/groups. It replicates files which belong  to  the  given  list  of
       gids/groups  (if  specified)  to  another  filesystem  and  removes the
       original file. It gives an error message for files  still  pinned.  The
       pool  name,  the  disk  server  name  or  the  filesystem  name  can be

       Volatile files which have expired  will  not  be  copied  and  will  be
       deleted during the draining process.

       If  no specfic file server and file system is specified, or no limit is
       placed on the files to drain, then the involved active  file  system(s)
       will  have their status changed to RDONLY.  If any of the involved file
       systems are marked as DISABLED they will not have their status changed,
       however  an attempt will still be made to replicate the files from them
       and, if successful, delete the original.

       Files which are to be moved and belong to a space will be  moved  to  a
       different  location (e.g. file system or disk server) but remain in the
       same space. If there is no alternate location within the same space  an
       error will be reported for the file and it will not be drained.

       Replicas  of  files with a lifetime will also have lifetime at least as
       long as the original. If this is not possible  (for  example  available
       pools have a maximum lifetime too short) then an error is given and the
       file will not be drained.

       This command requires ADMIN privilege.

              specifies the disk  pool  name  previously  defined  using  dpm-

       server specifies the host name of the disk server to be drained.

       fs     specifies the mount point of the dedicated filesystem.

       gid    specifies  the  comma  separated list of gids to which the files
              must belong.

       group  specifies the comma separated list of groups to which the  files
              must belong.

       size   specifies  the  minimum number of bytes to drain. The number may
              be post-fixed with ’k’, ’M’, ’G’ or ’T’ for kilobyte,  Megabyte,
              Gigabyte and Terabyte respectively.  Draining is halted once the
              desired target has been reached  or  passed.   If  size  is  not
              specified  or is given as zero dpm-drain will drain all eligible


            setenv DPM_HOST dpmhost
            setenv DPNS_HOST dpnshost

            dpm-drain --poolname Permanent

            dpm-drain --server

            dpm-drain --server --fs /storage

            dpm-drain --poolname Permanent --gid 105

            dpm-drain --server --group dteam

            dpm-drain --server --gid 105,104


       This program returns 0 if the operation was successful  or  >0  if  the
       operation failed.


       dpm(1), dpm-qryconf(1)