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At my previous employer we used file-based IBM Tivoli Storage Manager (new Spectrum Protect) and it consolidated half-empty tapes to empty ones by using several tape drives in autoloader.
TSM was file-based so tapes becoming heavily fragmented was a real issue. I'm not sure if it is a problem at all with Veeam as it is mostly image based. It could be at one point if tapes contain may partial backups mixed with unused space that would cause extensive tape swapping in autoloader.
So does Veeam have anything similar (if it needs it at all)?
- Veeam Software
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- Full Name: Dmitry Popov
- Location: Prague
We write files (or backups) to tape in one stream, so free space remains in the end of the tape. Backup job can either continue such tape or start a new tape media. Both options are handled in automated fashion (via Media Pool > Media set creation settings), so you are the one to decide which behavior works best.
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