HP-UX 11i v3 LVM New Features in HP-UX 11i v3 (September 2009)

5
LVM introduces two new options: -a (to indicate an online operation) and -E (to handle a DLE operation
information, see vgmodify(1M) and the - LVM Volume Group Dynamic LUN expansion (DLE)/vgmodify
explicitly
).
For more
as enhanced in the February 2007 release of HP-UX 11i v3 to allow relocation of just the
pand the LVM’s on-
the existing allocation policy of a logical volume containing the extent that is
considered for relocation.
For more information, see pvmove(1M)
t to any free extent within the same physical volume, enter:
t to any free extent in the volume group, enter:
:0
a physical volume that vdisplay(1M). You can then relocate the first user extent to
sical volume using
p
/dev/disk/disk22
/dev/vgname
available
VGDA 2
4
meout (Seconds) default
Autoswitch On
ation physical volume
# pvmove /dev/disk/disk10:0 /dev/disk/disk22
Note: Relocation of the first data extent fails if it violates the strict mirror allocation policy. So identify a
suitable physical volume that does not hold any mirror copies of the same extent which is considered for
relocation.
• To relocate the first data extent of a physical volume when the
vgmodify command reports insufficient space
for expanding the LVM configuration data on the disk. This happens when the user tries to modify the
physical volume settings using the
vgmodify command.
whitepaper.
pvmove(1M)
The
pvmove command w
first extent of the physical volume. The
vgmodify command uses this additional space to ex
disk configuration information.
The
pvmove command honors
Examples
• To relocate the first data exten
# pvmove /dev/disk/disk10:0 /dev/disk/disk10
• To relocate the first data exten
# 0d0 pvmove /dev/dsk/c1t
• To find has free space, use p
that phy
vmove:
# pv /ddisplay /dev/disk isk22
--- Physical volumes ---
PV Name
e VG Nam
PV Status
Allocatable yes
Cur LV 5
PE Size (Mbytes)
Total PE 1279
Free PE 779
Allocated PE 500
Stale PE 0
IO Ti
To relocate first data extent from the source physical volume to the desired destin
that was identified in the last step, enter: