I'm considering to sync backups to a set of two external USB HDDs, where one HDDs is connected and the other one is stored off-site. Several forum threads suggest that syncing to an external HDD should be possible.
One question remains:
Do I need to create two different mount points/datastores for the two disks, or can I use the same mount point/datastore for both disks?
In other words: does PBS keep a kind of state, which becomes inconsistent when disks are swapped, as they will contain different backup snapshots, or is all state (if any) of the datastore kept inside the datastore itself, so it gets refreshed when the disks are swapped?
One question remains:
Do I need to create two different mount points/datastores for the two disks, or can I use the same mount point/datastore for both disks?
In other words: does PBS keep a kind of state, which becomes inconsistent when disks are swapped, as they will contain different backup snapshots, or is all state (if any) of the datastore kept inside the datastore itself, so it gets refreshed when the disks are swapped?