If you put a tape in the drive and it comes up as "Foreign", that means that NetVault recognizes that it was written with NetVault, but its index information is not in the Media Database.
If you put a tape in the drive and it comes up with "Unknown", that means that NetVault has not yet been able to load the tape in to a drive, to see what is on the tape.
1. "Foreign" labeled tapes
The reason a tape is given the label foreign is because NetVault has not been able to identify an index for that specific tape in the Media Database. There could be several reasons why this is occurring. The most likely cause is that the tape was not created in the running NetVault server but was put in the library and
has not been scanned yet.
2. Scanning tapes in NetVault
When a tape contains data that was written by NetVault and is loaded by a new server for the first time, it will read the header on it and display the tape label with a tag of "Foreign".
This tape will not be used until the user initiates a manual scan on it. During this operation, the entire tape will be read and checked for index information. If an index is encountered that is not part of the database, it will be added to it.
3. Tapes marked as "Other"
Tapes from other backup software vendors (such as Veritas) will show up as "other", indicating that there *is* data on the tape, but that it can't be read by NetVault. All that NetVault can do with such tapes is blank them so that they can be used in NetVault.
Selecting Blank on a tape will destroy the tape header and any the information on the tape will not be restorable.
BakBone SFDC Solution Number: 00001460