Hi,

I've replaced hdisk0 in a Blade server but am having problems re-enabling the mirror as it appears the configuration database is not recognising the new disk.

The first 2 steps to re-enable the mirror fail:
$ extendvg rootvg hdisk0
0516-008 extendvg: LVM system call returned an unknown
error code (-271).
0516-792 extendvg: Unable to extend volume group.

$ mirrorvg '-Q' '-m' rootvg hdisk0
0516-304 getlvodm: Unable to find device id 00000000000000000000000000000000 in the Device
Configuration Database.
0516-014 mirrorvg: []: The physical volume appears to belong to another
volume group.
0516-1200 mirrorvg: Failed to mirror the volume group.

I checked lspv and this showed the new disk as available:
$ lspv
hdisk0 none None
hdisk1 001016cc923411e7 rootvg active

However if I try to display the hdisk0 I get the following error:
$ lspv hdisk0
0516-304 : Unable to find device id hdisk0 in the Device
Configuration Database.

If I try to manually configure hdisk0 I get this message
$ cfgmgr -l hdisk0
cfgmgr: 0514-604 Cannot access the CuDv object class in the

Can anyone offer any suggestions as to what could be causing the problem?

Thanks
Gareth

try
export ODMDIR=/etc/objrepos

an retry your steps listed above

What does "bootinfo -s hdisk0" say ?
What version of AIX ?

Can you post "lspv" output ?

Can you create a seperate VG on this PV? This will tell you whether the disk is in fact defective.

Thanks everyone for your responses.

I tried this but got the same errors

$ bootinfo -s hdisk0
57231

$ oslevel
5.2.0.0

lspv output was already listed.

This worked. I was able to create a vg and a file system within that.

I've now removed this vg and lspv now shows different results

$ lspv
hdisk0 001016cc76879bc5 None
hdisk1 001016cc923411e7 rootvg active

$ lspv -l hdisk0
0516-320 : Physical volume 001016cc76879bc50000000000000000 is not assigned to
a volume group.

However, having done this I tried the extendvg command again but it didn't work.

It has dawned on me that the instructions I was using were for v5.3 and this is on v5.2, however I can't find similar instructions for 5.2 to find out if they'd be any different.

Gareth

The procedure for aix 5.3 and 5.2 are all the same. Most of the times AIX works w/o any problems ... there is something more to your problems here...

What is the error now when you tried extendvg ? Can you please post the following command outputs ... as you said "replaced a rootvg disk" you may have a ghost disk attached to rootvg.

lsvg rootvg
lsvg -l rootvg
lsvg -p rootvg # If you see a pvid other than an hdisk , try a reducevg -f <pvid>. you may have to reduce the mirror copies if you had any.

Regards,

Kaps

I believe the problem you're having is that your hdisk0 doesn't have a PVID assigned. Look at your lspv output, the second column for hdisk1 is the PVID. Try this..

chdev -l hdisk0 -a pv=yes

Now your hdisk0 should have a PVID assigned and be ready to use.