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Operating Systems AIX Unable to extend volume group(VG) Post 302887070 by techy1 on Wednesday 5th of February 2014 01:07:22 PM
Old 02-05-2014
+1 to what vbe said.

when using extendvg you are saying you want to combine 2 or more hdisk into one vg. this is not to actually increase the size of the vg. ok so according to your first post you did try
Code:
cfgmgr

and you did not see the change.

using extendvg would be used if you had assinged a new disk and then wanted to combine that disk to oravg.
usage would be:
Code:
extendvg oravg hdisk3 (or whatever the new disk number is)

This is not your case.

do try this:
Code:
unmount all filesystems within the oravg
(use lsvg -l oravg) 
varyoffvg oravg
lspv - make sure the vg is not in active state
run cfgmgr
lspv - see if the vg came back online
if it didn't use varyonvg oravg and lspv again to ensure the vg is active
lsvg oravg
confirm the vg has the disk change.

if you are not seeing the disk changes make sure the disk changes are made correctly.
how are you assigning the disk changes? are you using SAN or assigned to the vio, NPIV?
send the output of:

lsdev -Cc disk |grep hdisk2

highly suggest reviewing the man pages before using these commands:
Code:
extendvg
chvg

if
Code:
chvg -g and cfgmgr

are not seeing the change I'm going to strongly suggest to review how the storage was added.
 

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VGEXTEND(8)                                                   System Manager's Manual                                                  VGEXTEND(8)

NAME
vgextend - add physical volumes to a volume group SYNOPSIS
vgextend [-A|--autobackup y|n] [-d|--debug] [-h|-?|--help] [--restoremissing] [-f|--force] [-t|--test] [-v|--verbose] [ PHYSICAL DEVICE OPTIONS ] VolumeGroupName PhysicalDevicePath [PhysicalDevicePath...] DESCRIPTION
vgextend allows you to add one or more initialized physical volumes ( see pvcreate(8) ) to an existing volume group to extend it in size. Moreover, it allows you to re-add a physical volume that has gone missing previously, due to a transient device failure, without re-ini- tialising it. Use vgextend --restoremissing to that effect. If PhysicalDevicePath was not previously configured for LVM with pvcreate (8), the device will be initialized with the same default values used with pvcreate. If non-default pvcreate values are are desired, they may be given on the commandline with the same options as pvcre- ate. See PHYSICAL DEVICE OPTIONS for available options. Note that the restore-related options such as --restorefile, --uuid, and --physi- calvolumesize are not available. If a restore operation is needed, use pvcreate (8) and vgcfgrestore (8). OPTIONS
See lvm for common options. PHYSICAL DEVICE OPTIONS
The following options are available for initializing physical devices in the volume group. These options are further described in the pvcreate man page. -f, --force -y, --yes -Z, --zero y|n --labelsector sector --metadatasize size [--metadataignorey|n] --pvmetadatacopies copies --dataalignment alignment --dataalignmentoffset alignment_offset Examples "vgextend vg00 /dev/sda4 /dev/sdn1" tries to extend the existing volume group "vg00" by the new physical volumes (see pvcreate(8) ) "/dev/sdn1" and /dev/sda4". SEE ALSO
lvm(8), vgcreate(8), vgreduce(8), pvcreate(8) Sistina Software UK LVM TOOLS 2.02.95(2) (2012-03-06) VGEXTEND(8)
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