pkh - I had tried to view/write to the tapes using NTbackup but this is a server that has been around a while and lists 4 different tape drives a 4mm DAT with media from 2005 (no longer used), File (no media), LTO Utrium (no media), Unrecognized (listing 5 of the 8 tape slots in the media library).
All of these devices have greyed check boxes so I cannot look at any of the drives/media. I don't think NTbackup has been used for quite a while.
MediaTools from the tools entry in the menu bar is greyed out too, but device manager does see the devices and rediscovers them after removal.
Dev T - I had done what you suggest except for changing the drivers for the the tape drive/library and physically detach the SCSI cable. I had uninstalled the devices, turned off the tape/library device, rebooted the server so it didn't "see" the drive/library, shutdown server again, turned on the tape/library, and booted up the server so it could rediscover the tape which it has done every time.
Using your exact procedure has the same results as before. Drive/library is rediscovered and found in device manager, but a catalog of the tape library results in "Ready, no servers found" This is the same as I was experiencing after a stop/start of the services without rebooting the server. After a reboot it would report "Queued".
RahulG - Your procedure was the last listed and seemed the most invasive (and has proven so, so far) so I saved it for last. I get VERY nervous about deleting devices within BE as then you start really messing with the SQL backend which is NOT a good time.
But, i did as you suggested and deleted the library and then restarted the services. It did re-find the library, but did a renumbering of the tape drive (from HP1 to HP2 which used to be the name of the library) and then renaming the library to HP3. It sees all the slots in the tape library but has them as "empty" (which I know they are not. Magazines have been verified). An initialization ran for 1hr 10 min. so far with no activity showing up on the tapes in the devices tab. The drive will flash a "play" icon for about 10 sec. and then it goes away. Killing the initialization is taking quite a long time (~40 minutes so far) so this fix attempt may have just added to the issue I'm having.
Thank you all for your assistance. This is an OLD server whose history I have not been a part of (I'm a contractor). It seems to have a few other issues besides these, but except for the server freeze when it tried to run both FULL jobs, it did see the tape library and write to it just fine.
I've used BE since it was a Veritas product (BE 8 or so), but have become less and less impressed with it since it started using the SQL backend.