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BugZero found this defect 906 days ago.
A Tape Job or tape-related task (Inventory, Catalog, or Restore) fails with errors:
These issues occur when the Tape Server is added to a different Veeam Backup Server. Veeam Backup & Replication does not support sharing tape devices with other Veeam Backup Servers.
To resolve this issue, reclaim the Tape Server with the Veeam Backup Server where errors occur. Edit the Tape Server entry When the "Edit Tape Server" wizard opens, click NextA pop-up should appear stating: "Specified host is already added as a tape server to the backup server xyz. Take ownership?" Click [ Yes ]
When the Tape Server has been claimed by another Veeam Backup Server, attempting to run Tape Verification on the original Veeam Backup Server where that Tape Server was connected will display an unclear warning. This warning does not make clear that the failure to verify is because the Veeam Backup Server cannot communicate with the Tape Server.