Can anybody help me please?

I am running ADSM V3.1 on NT 4.0 and I have the following problem:-

ADSM was running in roll-forward mode with mirrored log volumes.  To simulate a 
disk crash, I deleted the ADSM database and log volumes on one disk leaving the 
mirrored log volumes on the other disk.  The volume history, device config. and 
dsmserv.opt files are all intact.

I used the "dsmserv format" command to create the database and recovery log 
volumes of the same size as the originals.  

The problem is this; I can easily perform a point in time restore by recreating 
the database from the backup copy I have on tape.  However, I cannot restore up 
to the point of failure even though I have the mirrored log volumes intact.  
Whenever I issue a "dsmserv restore db" command, I get back an error message 
saying that the log mode wan not previously set to roll forward.

I have tried copying the mirrored log volumes to the original location and have 
also tried editing the dsmserv.dsk file to point to the mirrored log volumes 
but all to no avail...

So can anybody please tell me how I can recover my database to the point of 
failure with my (intact) mirrored log volumes???

Regards

Phil