We have a Proliant ML350 with a HP LTO 3 tape drive for backups.
On the machine is vmware esxi 3.5 installed. One of the guest os'es, a windows 2003 sbs, is using the tapedrive.
When the backup starts in the vm, it fails with the message:
Library Hewlett Packard LTO Ultrium-3 drive failed to write a Free media label on media <NAMETAPE> (10/02/2009 22:45 Seq 132) because the media is write protected.
We have only dedicated the tapedrive to the sbs guest machine.
If we try other tapes, always the same message.