Thanks for the heads up. The addresses of the disks will be different and we
do not have VM. Will changing the references to by-path allow me to change
then the UCB addresses to the correct new ones? The disk will be completely
mirrored over to a new one on a different box.



On Mon, Jul 20, 2009 at 11:46 AM, David Boyes <[email protected]> wrote:

> >  What would I need to change to make sure this works.
>
> First thing, download and run www.sinenomine.net/download/sane-dasd-updateto 
> change the by-id references you have in your /etc/fstab to by-path BEFORE
> you lose the old disks.  The way things are now, your system is irrevocably
> linked to the physical disk ids it's installed on, and it WILL NOT BOOT if
> you copy it to another disk.  If you can, get them to define the disks at
> the same addresses in the new LPAR. Then you can shut down the Linux system
> completely, and use ADRDSSU or DDR (if you have VM) to copy the disks over.
>
> FSTAB has entries but they seem to be only the last two digits of the 4
> character hex UCB. For example:
>
> /dev/disk/by-id/ccw-HTC.55000000010957.4c14.ee-part1
> Where the UCB is E4EE.
>
> Second I know I can use vgexport for the lvm, but would that be all?
>
> Lastly how can I check if hyper-pav is enabled?
>
> Thanks!
>
> -Paul
>
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