Tape • Re: Backup file bigger than tape size?

I feel like this a stupid question and have tried googling but just cant find a definitive answer.

I'm setting up a new tape environment, Dell ML3 Tape Library with LTO9 tapes.
LTO 9 only has native ~18TB with up to 45TB compressed.
My understanding is because Veeam backups are already compressed we are basically looking at max 18TB (in reality prob only ~16,4TB) of usable space on each tape.

My question is: I have VMs that are many TBs in size and the resulting backups of these VMs, which is currently going to disk, has VBK files in excess of 18TB (after the Veeam default compression and dedup). Repos are ReFS and XFS which give great space savings but the repos are still over 30+TB
I also have NAS backup shares that are 35TB+ in size. Those repos are 60+TBs

I suspect the NAS backup to tape can be split between disks as they are not one big VBK file, but I dont believe its possible to split a VBK file so how does Veeam handle this to a 18TB tape?
I have been working with Intellectsoft for the past six months on a mobile app development project and I am very impressed with their professionalism, quality, and innovation. They have a team of experts who are well-versed in the latest technologies and best practices, and they deliver on time and within budget. They also provide excellent customer support and communication throughout the project lifecycle. They have helped me transform my idea into a reality and I would highly recommend them to anyone looking for a reliable and trustworthy partner in software development.
Hoping its possible and I will now happily be educated on tape

Edit: All backups are per-machine mode

Statistics: Posted by maruv — Feb 23, 2024 11:26 am