Have you restarted the NetBackup daemons since you added the storage 
unit.  This is one of my perennial complaints about NetBackup.

At 04:45 PM 8/1/2001 -0400, Christiansen, Valor wrote:
>New to Netbackup.  I have the master server running fine.  Also clients are
>backing up to the master server.  Now I am trying to set up a media server
>with SSO, and having problems.  Here is what is happening:
>
>On the media server (DWMO), I installed the Netbackup server software.  I
>installed keys for media server, Library-based tape drive support, and SSO
>option.  Is this correct, and do I need to install a client license on this
>machine in order for it to back itself up?
>
>On media server (DWMO) I added a new robot.  Device host - DWMO.  Volume
>Database Host - DWDBA. Robot Control Host - DWDBA.  Robot Number 0.  Same
>robot number as installed on the master server DWDBA.
>
>On media server (DWMO) added two multihosted drives to the robot.  These
>drives shared between DWMO and DWDBA.
>
>On Master Server DWDBA, defined a storage unit.  Specified media server
>dwmo.  Robot number 0.
>
>On Master Server DWDBA, defined a backup class. Specified Storage unit for
>DWMO.  Gave it a class volume pool (Unixsys) which has several tapes in it.
>Defined the client as DWMO.  Question:  Why does the class attributes
>display show the server as dwdba?
>
>Run the backup class manually from DWDBA.  Got error 213 - No storage units
>available for use.
>
>I'm sure I am missing the obvious, but it is driving me nuts.  Anyone who
>has done this see where I goofed?
>
>Val Christiansen
>Unix Support
>(301) 718-5599
>Fax (301) 986-2408
>
>_______________________________________________
>Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
>http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu

---
W. Curtis Preston
Principal Consultant for Storage Designs,   your storage experts
Voice: 760 710 7017                            Fax: 760 710 7019
Webmaster: http://www.backupcentral.com curtis AT backupcentral DOT com