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Unable to extend volume group(VG)

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Operating Systems AIX Unable to extend volume group(VG)
# 1  
Old 02-03-2014
Wrench Unable to extend volume group(VG)
Would some help me on this below

I am trying to extend file system on AIX and however unable to extend the file system.
Code:
0516-306 extendvg: Unable to find physical volume 20 in the Device
        Configuration Database.
0516-321 extendvg: Physical volume u01-lv is not configured.
0516-792 extendvg: Unable to extend volume group.

• The details are as below

Code:
#lsvg
rootvg
oravg

Code:
#lsvg oravg
VOLUME GROUP:       oravg                    VG IDENTIFIER:  00f76b1400004c000000013825c12284
VG STATE:           active                   PP SIZE:        128 megabyte(s)
VG PERMISSION:      read/write               TOTAL PPs:      1439 (184192 megabytes)
MAX LVs:            256                      FREE PPs:       1 (128 megabytes)
LVs:                2                        USED PPs:       1438 (184064 megabytes)
OPEN LVs:           2                        QUORUM:         2 (Enabled)
TOTAL PVs:          1                        VG DESCRIPTORS: 2
STALE PVs:          0                        STALE PPs:      0
ACTIVE PVs:         1                        AUTO ON:        yes
MAX PPs per VG:     32512
MAX PPs per PV:     2032                     MAX PVs:        16
LTG size (Dynamic): 256 kilobyte(s)          AUTO SYNC:      no
HOT SPARE:          no                       BB POLICY:      non-relocatable
PV RESTRICTION:     none                     INFINITE RETRY: no

Code:
#lspv
hdisk0          00f76b14f6227370                    rootvg          active
hdisk1          00f76b14159e4a06                    rootvg          active
hdisk2          00f76b1425c12078                    oravg           active

• After increasing the lun in the storage

Run the #cfgmgr

• Unable to extend the VG
Code:
#extendvg oravg 20 hdisk2
0516-306 extendvg: Unable to find physical volume 20 in the Device
        Configuration Database.
0516-792 extendvg: Unable to extend volume group.


Thanks in advance

Thanks
Murali
Last edited by Scott; 02-03-2014 at 11:27 AM.. Reason: Fixed code tags
# 2  
Old 02-03-2014
Your command
Code:
#extendvg oravg 20 hdisk2

Why the 20?
I would think
Code:
#extendvg oravg hdisk2

since you are adding a physical volume to the volume group
# 3  
Old 02-03-2014
Still i got the below error

Code:

#extendvg oravg hdisk2
0516-1398 extendvg: The physical volume hdisk2, appears to belong to
another volume group. Use the force option to add this physical volume
to a volume group.
0516-792 extendvg: Unable to extend volume group.

# 4  
Old 02-03-2014
Your lspv command seems to show that hdisk2 belongs to oravg.
Right?
# 5  
Old 02-03-2014
Yes
Code:
2# lspv
hdisk0          00f76b14f6227370                    rootvg          active
hdisk1          00f76b14159e4a06                    rootvg          active
hdisk2          00f76b1425c12078                    oravg           active

# 6  
Old 02-03-2014
extendvg is for adding ( extend...) a new PV to a vg, which is not your case... I have not enough knowledge of AIX with lpar vio etc.. to tell you what command you will have to use, but the system if you did nothing knows nothing about the new size of the PV, that cfgmgr will perhaps notice the change, but I am sure there are some specific commands for LUNS... then you may have to change some VG attributes (smitty LVM...)...
# 7  
Old 02-03-2014
So, you are attempting to add a PV that is already attached to a different VG. Hence this new (and correct) error.

I am not sure if AIX allows for a PV to be split and assigned to two different VG. However, to go this route, I would think the PV would need to be detached from its existing VG - and that could result in lost data on that volume.
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