View Full Version : Newbie question: large backups, multiple tape sets

May 13th, 2010, 05:49 AM
apologies if this is covered in the documentation and I missed it...

I have a Dell tape library that takes 23/24 LTO-4 tapes and a big box of tapes (around a hundred) and I've been asked to figure out how to back up four 12TB filesystems that currently contain about 47.6TB of data. Assuming the tapes cram in 1.6TB compressed (I'm not sure how compressible the data is) that's 30 tapes - more than fit in the library in one go. The data may compress a lot less than that... so it could be more tapes.

Unfortunately, I've pretty much no experience of doing backups or using tape libraries so I'm struggling to figure out what the best way to approach this is. Can Amanda handle it? What would be the basic sequence of steps I'd need to take?

Many thanks!