Challenge
Tape media that is labelled with barcodes starting with “CLN” or “CLR” is not visible in Veeam Backup & Replication GUI (Shell).
Cause
Tapes with labels starting with “CLN” or “CLR” are automatically detected as cleaning tapes and are hidden in the user interface. This is by design.
Solution
If the tapes in question are not cleaning tapes, then apply the correct barcodes to them.
Re-inventory the library.
In case of an inadvertently marked tape which has a correct barcode, please check how to remedy the situation in the following KB: https://www.veeam.com/kb2789
More Information
Veeam B&R Tape device support http://helpcenter.veeam.com/backup/80/vsphere/index.html?tape_device_support.html
