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  man pages->Tru64 Unix man pages -> volrecover (8)              



NAME    [Toc]    [Back]

       volrecover - Performs volume recovery operations

SYNOPSIS    [Toc]    [Back]

       /sbin/volrecover [-g diskgroup] [-sb] [-npVv] [-o options]
       [volume | medianame...]

OPTIONS    [Toc]    [Back]

       Specifies the disk group for the operation, either by disk
       group ID or by disk group name. By default, the disk group
       is chosen based on the volume or medianame operands. If no
       volume  or medianame operands are given, all disks in this
       disk group will be recovered.

              Without the -g option  and  operands,  all  volumes
              needing  recovery  in all imported disk groups will
              be recovered.  Starts disabled volumes selected  by
              the operation. LSM starts the selected volumes with
              the -o delayrecover start option before  performing
              any  other recovery actions. This requests that any
              operations that can be delayed in starting a volume
              will be delayed.  In other words, only those operations
 necessary to make a volume available for  use
              will occur. Other operations, such as mirror resynchronization,
 attachment of stale plexes  and  subdisks,
 and recovery of stale RAID 5 parity are normally
 delayed.  Performs recovery operations in the
              background.  With  this option, volrecover will run
              in the background to attach stale plexes  and  subdisks
  and  to  resynchronize  mirrored volumes and
              RAID 5 parity. If the -b option is used with the -s
              option,  volumes  will  be  started before recovery
              begins.  Performs no recovery operations.  If  used
              with  the  -s  option,  volumes are started, but no
              other actions are taken. If the -n option  is  used
              with  the  -p  option,  volrecover prints a list of
              startable volumes.  Prints a list of selected  volumes
 that are startable. The list contains the following
 information: the volume name, the disk group
              ID  of  the  volume, the volume's usage type, and a
              list of state flags pertaining to  mirrors  of  the

              State flags and their meanings are: One of the mirrors
 was detached by an I/O failure.   One  of  the
              mirrors needs recovery, but the recovery is related
              to an administrative operation, not an I/O failure.
              Neither  kdetach  nor  stale is appropriate for the
              volume.  Performs a "mock run" of the command. Displays
 the commands that volrecover would execute if
              the operation actually executed.  Runs  in  verbose
              mode;  displays information about each task started
              by volrecover. For recovery operations (as  opposed
              to  start  operations), a completion status is displayed
 when each task completes.  Passes the  given
              option  arguments to the -o options for the volplex
              att and volume start operations invoked  by  volrecover.
   An   option  argument  of  the  form  prefix:options
 can be specified to restrict the set of
              commands  that  the -o option should be applied to.
              See volume(8) and volplex(8) for  the  options  you
              can use with prefix.

              Defined prefixes are: Applies to all invocations of
              the volume utility (volume  starts,  mirror  resynchronizations,
  RAID  5 parity rebuilds, and RAID 5
              subdisk recoveries) Applies to all  invocations  of
              the   volplex  utility  (used  only  for  attaching
              plexes) Applies specifically to plex attach  operations
  Applies  specifically to volume start operations
 Applies to volume resynchronizations.  Starts
              the  volume in degraded mode; defers resynchronization
 until you initiate it  manually.   Applies  to
              subdisk recoveries Applies to mirror resynchronization
 and RAID 5 parity recovery

OPERANDS    [Toc]    [Back]

       Specifies the volume to recover. Limits  recovery  to  the
       specified volume.  Specifies the disk to recover. Recovers
       all LSM objects on the named disk.

DESCRIPTION    [Toc]    [Back]

       The volrecover utility performs plex attach, RAID  5  subdisk
  recovery,  and  resynchronization operations for the
       named volumes or for volumes  that  use  the  named  disks

       If  no  medianame  or  volume  operands are specified, the
       operation applies to all volumes requiring recovery (or to
       all such volumes in the specified disk group).

       If  the  -s  option is specified, disabled volumes will be
       started. With the -s and -n options, volumes are  started,
       but no other recovery takes place.

       Recovery  operations are started in an order that prevents
       two concurrent operations from involving  the  same  disk.
       Operations that involve unrelated disks will run in parallel.

EXAMPLES    [Toc]    [Back]

       To recover in the  background  any  detached  subdisks  or
       plexes that resulted from replacement of a specified disk,

              # volrecover -b medianame  To  monitor  the  operations,
 use the command:

              # volrecover -v medianame

SEE ALSO    [Toc]    [Back]

       Commands: volplex(8), volume(8)

       Other: volintro(8)

[ Back ]
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