Environment:

Sun E450
Solaris 2.8
(3) 400MHz processors
NBU 3.4
L700 with (8) DLT8000 drives
L11000 with (8) DLT7000 drives

We recently installed an STK L700e library with the intention of replacing the 
current L11000. The L11000 will remain on the floor for about five more weeks 
until the tapes within expire. Currently all (16) drives are configured (2 
separate storage classes) and online however only the (8) drives in the L700e 
are being used for nightly backups.

We cut over to the new drives yesterday and although last night's backups 
appeared to be running OK, we had about 70 jobs that failed with a 196 because 
the window closed. Prior to cutting over to the new library we were completing 
the same number of backups that were running last night with no problems. In 
fact, we have one of the DLT7000 drives currently down so we accomplished the 
backups with only (7) drives.

I guess what I want to know is are there tuning consideration associated with 
adding the new L700e that I need to know about? Even though I'm only using (8) 
of the (16) defined drives, should I physically disconnect (6) of them from the 
old library? What else should I be looking at?

I'm not a SCSI maven nor do I know a lot about performance and tuning for 
Solaris or NBU. What I do know is my backups should be finishing a little bit 
sooner (maybe) since I upgraded and not taking longer.

By the way, there is no indication that the jobs that did complete have any 
more data than usual.

Any information would be greatly appreciated.

Regards,
Dennis

Dennis F. Dwyer
Manager, Systems Software
Tampa Electric Company

(813) 225-5181  - Voice
(813) 275-3599  - FAX

Visit our corporate website at www.tecoenergy.com

Quote: "Time is not a test of the truth"
Translation: Just because you've always done it that way, doesn't make it right