These questions are less Veeam related and more generic backup to tape.
Just reading through the description of the PowerVault TL1000: http://www.dell.com/uk/business/p/storage-tl1000/pd
"Fast installation — Simply unpack and rack the unit, connect the SAS cable, load tape media and power on the TL1000 to get started."
Looks like the only interface is SAS direct to a server? Does veeam care about that as long as its presented to the physical server correctly?
With the tape media and LTO6 (2.5 TB native; 6.25 TB) will veeam compress the backup to allow up to 6.25TB or is that something the tape drive should take care of?
Are there any other single drive tape libraries I should be looking at?