Just an update regarding this topic. 
After reconfiguring my SSO setup and the Brocade switch, the problem is 
still there. So, I downloaded the LTO tape driver Atape.7.1.5.0.bin 
from the IBM site, and apply it to all my media servers. This solved 
the problem.
Thanks a lot for all your response, your suggestions helped me in 
solving the problem.

Jeffrey 

----- Original Message -----
From: Penelope Carr <Penelope.Carr AT veritas DOT com>
Date: Wednesday, August 14, 2002 3:47 am
Subject: RE: [Veritas-bu] LTO-Ultrium drives goes down after a backup..

> What drivers did you use??  Veritas or IBM - try using IBM latest 
> versiondrivers.
> 
> Penelope
> 
> -----Original Message-----
> From: jeffrey menil [mailto:jeffrey.menil AT stme.com DOT sa]
> Sent: Tuesday, August 13, 2002 7:10 AM
> To: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: [Veritas-bu] LTO-Ultrium drives goes down after a backup..
> 
> 
> Hi,
> I've just installed a Netbackup 4.5 SAN solution with an STK L180 
> having 6 LTO Ultrium FC drives, configured on an AIX 4.3.3 
> master/media 
> server. 
> The problem is after a backup the tape never gets dismounted and 
> the 
> drive goes down. I can confirm that the SSO configuration is 
> correct, 
> robtest shows that tapes mounts/dismounts to the correct drives, 
> and 
> the tape drive firmware level is latest(22U0). I've tried removing 
> the 
> the drives from SSO and configure it as normal robotic drives, but 
> I 
> still got same problem. Has anyone encountered same problem? Any 
> recommendation will be highly appreciated, thanks.
> 
> Jeff Menil
> 
> 
> _______________________________________________
> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>