Force diff/inc backups on the same vchanger device as full

[spadaj...@gmail.com]

I'm sure I'm not the first to think about it but I don't even have a good idea how to look for any earlier questions.

I have an SD server which uses vchanger. In my case it's configured along with automounter so I can simply replace a disk and I have fresh batch of file devices (I don't create device per job, I have pre-created static-sized device files). Nothing fancy.

But since I'm swapping the entire disk at once in case it fails I lose all jobs stored on this disk. Which means that if I did a full backup on disk A then swapped for disk B and did diffs or incrementals there and the disk A crashed, I lose the ability to restore the machine.

The question is how to make sure in my setup that I don't end up with incrementals or diffs requiring full from another storage unit. That would mean that I need to contain full+inc/diff on the same disk.

Should I fiddle with creating separate pools and somehowtry to rotate them? (like create separate job set for separate media pool for each week and just repeat them each X weeks where X is number of disks in rotation, assuming that I do a full every week).

Or any better ideas?

[aeron...@gmail.com]

I clearly do not know but maybe the always incremental might do the job.

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[Spadajspadaj]

I thought about the always incremental scheme but that would require additional storage which I do not have at the moment.

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