HPUX 11.31 LVM VG adds one of Max PV methods

Scenario: There is a file system space, need to expand space, the preparation work found that the file system corresponding to the LV VG "free PE" value is 0,VG has no space, so to first expand the VG, and then expand the LV, but the expansion of the VG found "MAX PV" has reached the limit to increase PV, It is necessary to first increase the "MAX PV" specific information as follows:

#vgdisplay/dev/datavg

---Volume groups---

VG Name/dev/datavg

VG Write Access Read/write

VG Status Available

Max LV 255

Cur LV 1

Open LV 1

Max PV

Cur PV 20

Act PV

Max PE per PV 42000

VGDA 40

PE Size (Mbytes) 256

Total PE 40580

Alloc PE 40580

Free PE 0

Total PVG 0

Total Spare PVs 0

Total Spare PVs on use 0

VG Version 1.0

VG Max Size 210000g

VG Max Extents 840000

Found that this VG is in 1.0 version, so there are two ways to solve this problem, one is to modify "MAX PV" through Vgmodify, and the other is to upgrade the VG 1.0 expires 2.0, here is mainly about how VG 1.0 upgrade to 2.0.

Prepare before Upgrade:

1. Upgrade from VG1.0 to 2.0 to go to the datavg to activate, as long as the business involved in the VG, all need to stop;

2. Backup DATAVG related configuration information; it's better to back up all of the file system data that the VG is involved in case

Vgexport-p-v-s-M Datavg.map/dev/datavg

Vgcfgbackup/dev/datavg

Upgrade implementation:

Go ahead and mount all the file systems related to Datavg, then execute;

#vgchange-A N/dev/datavg

Volume Group "/dev/datavg" has been successfully changed.

#vgversion-V 2.0/dev/datavg

Performing "Vgchange-a y-l-p-s/dev/datavg" to collect data

Activated Volume Group.

Volume Group "/dev/datavg" has been successfully activated.

Warning:volume Group version 2.0 does not support bad block

Relocation. The bad block relocation policy of all logical volumes

'll is set to NONE.

Old Volume Group configuration for "/dev/datavg" have been saved in "/etc/lvmconf/vgversion_datavg/datavg_1.0.conf"

Deactivating Volume Group "/dev/datavg"

Volume Group "/dev/datavg" has been successfully deactivated.

New Volume Group configuration for "/dev/datavg" have been saved in "/etc/lvmconf/vgversion_datavg/datavg_2.0.conf"

Removing the Volume group/dev/datavg from/etc/lvmtab

Applying the configuration to all physical Volumes from "/etc/lvmconf/vgversion_datavg/datavg_2.0.conf"

Volume Group configuration has been restored TO/DEV/RDISK/DISK44

Volume Group configuration has been restored TO/DEV/RDISK/DISK43

Volume Group configuration has been restored TO/DEV/RDISK/DISK42

Volume Group configuration has been restored TO/DEV/RDISK/DISK41

Volume Group configuration has been restored TO/DEV/RDISK/DISK40

Volume Group configuration has been restored to/dev/rdisk/disk39

Volume Group configuration has been restored to/dev/rdisk/disk38

Volume Group configuration has been restored to/dev/rdisk/disk37

Volume Group configuration has been restored TO/DEV/RDISK/DISK36

Volume Group configuration has been restored TO/DEV/RDISK/DISK35

Volume Group configuration has been restored TO/DEV/RDISK/DISK34

Volume Group configuration has been restored TO/DEV/RDISK/DISK33

Volume Group configuration has been restored TO/DEV/RDISK/DISK32

Volume Group configuration has been restored TO/DEV/RDISK/DISK31

Volume Group configuration has been restored TO/DEV/RDISK/DISK30

Volume Group configuration has been restored to/dev/rdisk/disk29

Volume Group configuration has been restored TO/DEV/RDISK/DISK28

Volume Group configuration has been restored TO/DEV/RDISK/DISK27

Volume Group configuration has been restored TO/DEV/RDISK/DISK26

Volume Group configuration has been restored TO/DEV/RDISK/DISK25

Creating the Volume Group of version 2.0 with minor number 0x1000.

Adding the Volume group/dev/datavg to/etc/lvmtab_p

Original Volume Group Version was 1.0

New Volume Group Version is 2.0

Volume Group version have been successfully changed to 2.0

Volume Group configuration For/dev/datavg has been saved in/etc/lvmconf/datavg.conf

# #vgchange-A Y/dev/datavg

Activated Volume Group.

Volume Group "/dev/datavg" has been successfully changed.

#vgdisplay/dev/datavg

---Volume groups---

VG Name/dev/datavg

VG Write Access Read/write

VG Status Available

Max LV 511

Cur LV 1

Open LV 1

Max PV 511

Cur PV 20

ACT PV 20

Max PE per PV 65536

VGDA 40

PE Size (Mbytes) 256

Total PE 40580

Alloc PE 40580

Free PE 0

Total PVG 0

Total Spare PVs 0

Total Spare PVs on use 0

VG Version 2.0

VG Max Size 210000g

VG Max Extents 840000

At this point, the value of Max PV has been increased to 511.

This article from "I Love life" blog, declined reprint!

HPUX 11.31 LVM VG adds one of Max PV methods