In versions prior to v8, the method to recover the IDB was as follows
(based on the HP White Paper found here http://h10032.www1.hp.com/ctg/Manual/c01142698.pdf)
1) Install DP CM on remote server
2) configure file based library on server in remote location
3) run nightly IDB backup and send to remote file library
4) The IDB job includs a post-script to restore the IDB to a directory on the remote server
5) at time of disaster shutdown remote CM, copy db40 directory, re-assign IDB ownership
6) start DP on remote server and you now have an update DP catalog
With v8.x it does not look as simple. The omnir -idb command looks a lot more involved and remote restoration may or may not be an option.
Having the DP IDB catalog is pretty much a requirement to start restores.
Does anyone have any experiences they are willing to share in recovering the IDB to a remote site in the event of a disaster ?