Hard drive 'clicking'

[DJai]

Wow, that's an impressive amount of storage for each tape!

 

[Paul_RD]

The latest lto drives/tapes holds 15tb(30tb compressed) data, amazing, but you dont get any compression if you backing just video files or I dont anyway. I am quite surprised as I would have thought I would see a small amount of compression. Like I have just backed up about 200gb of video files to tape and theres no compression at all. So it makes me wonder if my drive is working properly, but the health checks are good and the compression is turned on.

I would expect files like video and photos which are already compressed to not benefit from the additional compression of the tape drive.
Things like Word documents on the other hand I would expect to benefit and compress heavily.