If you define different device classes to the devices in each library, and have
a copy pool located in the online library that is kept in sync with the primary
pool, all that you need to do is to mark all of the volumes in the 'off'
library as "unavailable". ADSM will automatically use the volumes in the other
library without further action.

Peter Gathercole
Open Systems Consultant.

Roger Hohmann wrote:

> Hi Folks,
>
> while testing our disaster scenario we had following situation:
>
> ADSM / MVS with 2 Tape Libraries ,one of them turned off due to disaster
> case. After that, either our copy stgpool are not running (of course, the
> lib is off) or the backups are not running (if primary pool is affected). I
> think, the problems are the same if I had a Unix box with two libs and one
> of them turned off.
>
> I'm asked to keep adsm running in disaster scenario, not only for restores.
> In my opinion, I have to define a 'disaster storage pool' in the remaining
> library and update all mgmt classes and storage hierarchys not to use the
> 'off' library, but to use the remaining one. (And several additional
> updates for putting reclamation off etc.)
>
> Any other ideas?
>
> regards
>
> Roger Hohmann
> P.S.: Any of You using ADSM with HACMP ? Is it usable?