HP-UX Logical Volume Manager and MirrorDisk/UX Release Notes (September 2008)

Changed Features
The following features have changed in the September 2008 release of LVM and MirrorDisk/UX:
Display Enhancements
The vgdisplay, pvdisplay, and lvmadm commands display additional information.
• vgdisplay with the -V VG_vers option displays the volume group information for all
volume groups of the specified version. For example:
# vgdisplay -V 1.0
--- Volume groups ---
VG Name /dev/vg00
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 7
Open LV 7
Max PV 16
Cur PV 1
Act PV 1
Max PE per PV 4328
VGDA 2
PE Size (Mbytes) 16
Total PE 4319
Alloc PE 4318
Free PE 1
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0
VG Version 1.0
VG Max Size 1082g
VG Max Extents 69248
• pvdisplay with the new -u option displays the Data Start and End, and if the physical
volume is bootable. This must be used with the existing -l option. For example:
# pvdisplay -l /dev/disk/disk34_p2
/dev/disk/disk34_p2:LVM_Disk=yes
# pvdisplay -l -u /dev/disk/disk34_p2
/dev/disk/disk34_p2:LVM_Disk=yes:Data_Start=2912:Data_End=34638688:Bootable=yes
In this example, physical extent 0 starts at block 2912 and the last physical extent ends at
block 34638688, and the physical volume is bootable.
• lvmadm with the new -l VG_vers option displays the LVM configuration in the /etc/
lvmtab and /etc/lvmtab_p files for the specified volume group version. For example:
# lvmadm -l 1.0
--- Version 1.0 volume groups ---
VG Name /dev/vg00
PV Name /dev/disk/disk34_p2
This is a supported replacement for running the command strings /etc/lvmtab.
pvmove Enhancements
The pvmove command has several new features.
• pvmove supports moving a range of extents. For example, to move extents 25 through 100
from /dev/disk/disk32 to /dev/disk/disk55, use this command:
# pvmove /dev/disk/disk32:25-100 /dev/disk/disk55
• pvmove supports moving extents from the end of a physical volume. For example, to move
the last 5 extents from /dev/disk/disk32 to another physical volume, use this command:
# pvmove -e 5 /dev/disk/disk32
New and Changed Features in This Release 7