pvmove(1M) pvmove(1M)
NAME [Toc] [Back]
pvmove - move allocated physical extents from one LVM physical volume
to other physical volumes
SYNOPSIS [Toc] [Back]
/usr/sbin/pvmove [-A autobackup] [-n lv_path] source_pv_path
[dest_pv_path ... | dest_pvg_name ...]
Remarks [Toc] [Back]
pvmove cannot be performed if the volume group is activated in shared
mode.
DESCRIPTION [Toc] [Back]
The pvmove command moves allocated physical extents and the data they
contain from a source physical volume, source_pv_path, to one or more
other physical volumes in the same volume group.
If a destination physical volume or physical volume group is not
specified, all physical volumes in the volume group are available as
destination volumes for the transfer. pvmove selects the proper
physical volumes to be used in order to preserve the allocation
policies of the logical volume involved.
To limit the transfer to specific physical volumes, specify the name
of each physical volume directly with a dest_pv_path argument.
Optionally, if physical volume groups are defined for the volume
group, specify the physical volumes indirectly with one or more
dest_pvg_name arguments.
source_pv_path must not appear as a dest_pv_path.
If source_pv_path is a member of a dest_pv_path, it is automatically
excluded from being a destination physical volume.
pvmove succeeds only if there is enough space on the destination
physical volumes to hold all the allocated extents of the source
physical volume.
If you have installed HP MirrorDisk/UX on your system and
source_pv_path is an "active spare" physical volume within a mirrored
logical volume, once all of the data has been moved to dest_pv_path,
the source_pv_path physical volume will be returned to a "stand-by"
spare physical volume. This is how to "unspare" data once the original
failed physical volume has been repaired and is available to receive
data.
Options [Toc] [Back]
pvmove recognizes the following options:
dest_pv_path The block device path name of a physical
volume. It cannot be the source physical
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pvmove(1M) pvmove(1M)
volume. It must be in the same volume group
as source_pv_path.
dest_pvg_name The name of a physical volume group. It must
be in the same volume group as
source_pv_path.
source_pv_path The block device path name of a physical
volume.
-A autobackup Set automatic backup for this invocation of
this command. autobackup can have one of the
following values:
y Automatically back up configuration
changes made to the physical
volume. This is the default.
After this command executes, the
vgcfgbackup command (see
vgcfgbackup(1M)) is executed for
the volume group to which the
physical volume belongs.
n Do not back up configuration
changes this time.
-n lv_path Move only the physical extents allocated to
the logical volume specified by lv_path that
are located on the source physical volume
specified by source_pv_path.
EXTERNAL INFLUENCES [Toc] [Back]
Environment Variables
LANG determines the language in which messages are displayed.
If LANG is not specified or is null, it defaults to "C" (see lang(5)).
If any internationalization variable contains an invalid setting, all
internationalization variables default to "C" (see environ(5)).
EXAMPLES [Toc] [Back]
Move physical extents from /dev/dsk/c1t0d0 to /dev/dsk/c2t0d0 and
/dev/dsk/c3t0d0:
pvmove /dev/dsk/c1t0d0 /dev/dsk/c2t0d0 /dev/dsk/c3t0d0
If physical volumes /dev/dsk/c2t0d0 and /dev/dsk/c3t0d0 are the only
ones that belong to physical volume group PVG0, the same result can be
achieved with the following command:
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pvmove(1M) pvmove(1M)
pvmove /dev/dsk/c1t0d0 PVG0
Move only the physical extents for logical volume /dev/vg01/lvol2 that
are currently on /dev/dsk/c1t0d0 to /dev/dsk/c2t0d0:
pvmove -n /dev/vg01/lvol2 /dev/dsk/c1t0d0 /dev/dsk/c2t0d0
SEE ALSO [Toc] [Back]
pvdisplay(1M), vgcfgbackup(1M).
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