vxrecover(1M) VxVM 3.5 vxrecover(1M)
1 Jun 2002
NAME [Toc] [Back]
vxrecover - perform volume recovery operations
SYNOPSIS [Toc] [Back]
vxrecover [-bcEmnpsvV] [-g diskgroup ] [-o options ] [-t tasktag ] [
volume | medianame...]
DESCRIPTION [Toc] [Back]
The vxrecover utility performs plex attach, RAID-5 subdisk recovery,
and resynchronize operations for the named volumes, or for volumes
residing on the specified disks medianame. If no medianame or volume
is specified, the operation applies to all volumes, or to all volumes
in the specified disk group. If -s is specified, disabled volumes are
started. With -s and -n, volumes are started, but no other recovery
takes place.
Recovery operations are started in an order that prevents two
concurrent operations on the same disk. Operations that involve
unrelated disks run in parallel.
OPTIONS [Toc] [Back]
-b Performs recovery operations in the background. With this
option, vxrecover runs in the background to attach stale
plexes and subdisks, and to resynchronize mirrored volumes
and RAID-5 parity. If this is used with -s, volumes are
started before recovery begins in the background.
-c Operates on cluster-shareable disk groups. This option is
used by the cluster reconfiguration utility to effect
recovery on volumes in shared disk groups after the failure
of a node in the cluster. Do not use -c as a command-line
option. Available only if the VERITAS Volume Manager (VxVM)
cluster feature is enabled and a license is installed.
-E Starts disabled volumes or plexes even when they are in the
EMPTY state. This is useful for starting up volumes
restored by the vxmake utility when specified along with the
-s option.
-g diskgroup
Limits operation of the command to the given disk group, as
specified by disk group ID or disk group name. If no volume
or medianame is specified, all disks in this disk group are
recovered, otherwise, the volume and medianame are evaluated
relative to the given disk group.
Without the -g option, if no volume and medianame is
specified, all volumes in all imported disk groups are
recovered; otherwise, the disk group for each medianame
specified is determined based on name uniqueness within all
disk groups.
- 1 - Formatted: January 24, 2005
vxrecover(1M) VxVM 3.5 vxrecover(1M)
1 Jun 2002
-m Recognizes and enables volumes that were moved as a result
of a disk group move, split or join operation.
-n Does not perform any recovery operations. If used with -s,
volumes are started, but no other actions are taken. If
used with -p, vxrecover only prints a list of startable
volumes.
-o options
Passes the given option arguments to the -o options for the
vxplex att and vxvol start operations generated by
vxrecover. You can specify an option argument in the form
prefix:options
to restrict the set of commands that the -o option is
applied to. Defined prefixes are:
+ vol applies to all invocations of the vxvol utility
(volume starts, mirror resynchronizations, RAID-5 partity
rebuilds, and RAID-5 subdisk recoveries)
+ plex, applies to all invocations of the vxplex utility
(used only for attaching plexes)
+ attach applies specifically to plex attach operations
+ start applies specifically to volume start operations
+ recover applies to subdisk recoveries
+ resync applies to mirror resynchronization and RAID-5
parity recovery.
-p Prints the list of selected volumes that are startable. For
each startable volume, a line is printed containing 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 volume. State flags include:
+ kdetach indicates that one of the mirrors was detached by
an I/O failure
+ stale means that one of the mirrors needs recovery, but
that the recovery is related to an administrative
operation, not an I/O failure
+ stopped prints if neither kdetach nor stale is
appropriate for the volume.
- 2 - Formatted: January 24, 2005
vxrecover(1M) VxVM 3.5 vxrecover(1M)
1 Jun 2002
-s Starts disabled volumes that are selected by the operation.
Volumes are started before any other recovery actions are
taken. Volumes are started with the -o delayrecover start
option. This requests that any operations that can be
delayed in starting a volume are delayed. That is, only
those operations necessary to make a volume available for
use occur. Other operations, such as mirror
resynchronization, attaching of stale plexes and subdisks,
and recovery of stale RAID-5 parity, are typically delayed.
-t tasktag
If any tasks are registered to track the progress of the
operation, marks them with the tag tasktag. This option is
also passed to any utilities called to perform recoveries,
so all tasks registered by any utility to perform the
recoveries are also tagged with tasktag.
-v Displays information about each task started by vxrecover.
For recovery operations (as opposed to start operations),
prints a completion status when each task completes.
-V Displays each command executed by vxrecover. The ouput
generated is more verbose than the job descriptions printed
with the -v option.
EXAMPLES [Toc] [Back]
To recover, in the background, any detached subdisks or plexes that
resulted from replacement of a specified disk, use the command:
vxrecover -b medianame
To monitor the operations, use the command:
vxrecover -v medianame
SEE ALSO [Toc] [Back]
vxintro(1M), vxmake(1M), vxplex(1M), vxvol(1M)
- 3 - Formatted: January 24, 2005 [ Back ] |
