vgcfgrestore - unable to restore config bec. of PV size???

[cam9269]

Hi Guys,

We've recently replaced a failed disk from one of our VGs which has the ff. disk assignments:
Failed disk is c6t0d0
------------------------------------

--- Physical volume groups ---
PVG Name PVG_primary
PV Name /dev/dsk/c4t8d0
PV Name /dev/dsk/c4t9d0
PV Name /dev/dsk/c4t10d0
PV Name /dev/dsk/c4t11d0
PV Name /dev/dsk/c4t12d0
PV Name /dev/dsk/c4t13d0
PV Name /dev/dsk/c4t14d0

PVG Name PVG_mirror
PV Name /dev/dsk/c6t0d0
PV Name /dev/dsk/c6t1d0
PV Name /dev/dsk/c6t2d0
PV Name /dev/dsk/c6t3d0
PV Name /dev/dsk/c6t4d0
PV Name /dev/dsk/c6t5d0
PV Name /dev/dsk/c6t6d0

--------------------------------------------

The PV's status is 'unavailable' in the vgdisplay output.

We are following instructions from the "When_Good_Disks_Go_Bad.pdf" document and the next step is to use: vgcfgrestore -n

But when we execute this, we get the ff. error messages:
----------------------------------------------
Size of Physical Volume "/dev/rdsk/c6t0d0" is smaller than the corresponding PV size in configuration backup file saved by "vgcfgbackup" command. Cannot restore.
----------------------------------------------

I know for a fact that we do have the same disk size and all... But we can't get past this issue. Would like to seek help with this one.

Thanks!

[Kapil Jha]

Hi,

Since you are using PVG you have to have a disk with same or big size,

Since there are so many disk in PVG its better not to touch the config and get a disk with bigger size.

BR,
Kapil+

[cam9269]

But I am using the same disk size... wouldn't that be enough replacement?

[Kapil Jha]

Ok so you can do one thing I suppose, do not use vgcfgrestore rather than add the disk from command line and vgsync it.
It should work.

BR,
Kapil+

[cam9269]

You mean I do:
1. vgextend
2. vgsync?

[Michael Steele_2]

Hi

"...Size of Physical Volume "/dev/rdsk/c6t0d0" is smaller than the corresponding PV size in configuration backup file saved by "vgcfgbackup" command. Cannot restore..."

Please perform a 'diskinfo' on all your disks, obtain the product numbers for all and compare them with the old c6t0d0 product number.

[cam9269]

Thanks Michael, that's just what I did and found that c6t0d0 is smaller by 480bytes! So now, I am getting that disk replaced with the exact disk size as the ones already installed.

Will let you guys know how this goes.

Thanks for the replies!

[Kapil Jha]

Yes vgextend and vgsync?


It would work, extend it with -g option is PVG.
Or enter the disk name later in /etc/lvmpvg file

BR,
Kapil+

[AVV]

HI,


If you have same size of disk, I would suggest a vgrestore.

[Amitav]

Hi,
If you have got the bigger disk now, please use vgcfgrestore to restore all the datas.