No modification to ddr.dbase was necessary. 
Using /dev/tape/tape?c instead of /dev/tape/tape?_d1 seem to have worked. 
Thanks to all who responded.
-Murthy 
>We were using QUANTUM  DLT8000 with Legato networker server on V5.1 and
> it worked fine. I upgraded the DS10 to V5.1B using installupdate and
> applied patchkit 2. Now the tapes don't seem to be running in compressed
> mode anymore. We are using tapexx_d1  device files under networker.
> 
> Any ideas?
Received on Mon Aug 18 2003 - 18:33:48 NZST