Can not change FS

[ubihga]

Hi all

We are in the prosses of moving all our AIX from old HDS disks to
new HDS disks.

We use following procedure:

Disks is added to node in SAN via same fiber connection.
On the node we do:
cfgmgr
extendvg rootvg newdisk
mirrorvg rootvg olsdisk newdisk
unmirror olddisk
reducevg rootvg olddisk
bosboot -ad /dev/newdisk
savebase
reboot
rmdev -l olddisk -d

After this we can not change size of filesystems in rootvg.
Neither can we add disks (extendvg) to rootvg.

This is true for all our AIX 5.2 ML7 systems.
All our AIX 5.3 ML3 system is working.

I can create new filesystems, but not change size of any existing filesystems. This counts for all filesystems in rootvg only, all other vg's are OK.

Anybody who have a hint !

 

[hirschaj]

What error messages are you getting when you try to increase the size of a FS or add a new disk to the VG?

Jim Hirschauer

http://www.aixexpert.com

 

[ubihga]

Hi

chfs -a size=32769 /home
0516-404 allocp: This system cannot fulfill the allocation request.
There are not enough free partitions or not enough physical volumes
to keep strictness and satisfy allocation requests. The command
should be retried with different allocation characteristics.

extendvg rootvg hdisk0
0516-008 extendvg: LVM system call returned an unknown
error code (-271).
0516-792 extendvg: Unable to extend volume group.

/HGA

 

[jpor2003]

Looks as though your using Mirroring and from what I can tell you are expanding over the boundaries of the physical disks installed. To keep strictness you need another 2 disks for the mirroring to overflow onto.

when you do an lsvg command how many free PP's do you have?

 

[ubihga]

Hi All

Thanks for all your tips.
Unfortunaly it has not yet solved my problem.

To clear some of the questions I can add this.
The setup is wery simpel, only one disk in rootvg, no raid og other fancy setup is involved.

If i try increase ANY filesystems in rootvg by "+1" I get the error. I know that normaly change this "+1" to next boundary, and it usually work fine.

I have at least 500Mb free on my hdisks.

I have discovered, if I take tne node in maintenance mode, access rootvg (and do nothing) , restart the system. After this I am abel to change my filesystems again.

But I would 'prefer' an easyer to solve this.
I hope it won't be necessary to have all my (83) systems to maintenance mode :-(

I have used the described procedure earlier when we was running 5.2.4 then it was working. My gues is that we have an error in 5.2.7.

I have created a PMR at IBM.


Rehards
HGA

 

[p5wizard]

Have you tried a synclvodm rootvg? I'd run it one a test system first.

HTH,

p5wizard

 

[ubihga]

Hi again.

It (synclvodm rootvg) DID the tricks
It was another sync I have tryed.

Thanks a lot