I want to create a new media set (Allocation: Always, Retention: Keep), with no de-duplication so that each backup is a self-contained full-backup. Given that each tape backup must reside in a pool (media set), can multiple media sets coexist on a single physical tape? Or is PBS incapable of storing multiple "Full-backups" to a single tape?
If the answer is NO, what prevents an LTO-9 tape from losing all of it's data, if a single or multiple chunks or files get corrupted? Because de-duplication relies on shared-chunks to reduce .tar size, the entire tape (filled with potentially years worth of backups) could be irrecoverable should a single shared chunk become inaccessible or corrupted.
What is Proxmox's recommended best practice for writing self-contained full backups tape so that a read error or corruption event on one snapshot does not impact any other backup snapshots on the same media?
If the answer is NO, what prevents an LTO-9 tape from losing all of it's data, if a single or multiple chunks or files get corrupted? Because de-duplication relies on shared-chunks to reduce .tar size, the entire tape (filled with potentially years worth of backups) could be irrecoverable should a single shared chunk become inaccessible or corrupted.
What is Proxmox's recommended best practice for writing self-contained full backups tape so that a read error or corruption event on one snapshot does not impact any other backup snapshots on the same media?