I have two disks in my system. I want to replicate snapshots from disk A to disk B as a way of a regular backup. Is there any support for that directly in rockstor or should I use the terminal and cron for this?
The replication feature itself looks a bit like what I want, but it only works with external appliances…
No, the built in replication feature is only inter Rockstor machines not intra machine.
Also note that Rockstor enforces unique subvol names within a system. So if you do end up doing a cron of sorts, ensure the target subvol has a system wide unique name.
Another note here is that if you simply want a snapshot to exist on 2 disks, i.e. the literal interpretation of:
The raid1 or 10 will do this underneath by ensuring all data chunks are on at lest 2 independent devices. But I’m assuming you mean from one pool to another, where each pool has a single disk in. With the context of ‘raid is not a backup’.