I have a (at the moment) theoretical question:
Lets say I run a cluster (on-prem) spread across 3 (or more) regions and I want to back up the cluster (assuming I have the proper license etc)
If I’m in 1 DC, that’s not a problem : I just hook up a nfs mountpoint from a storage backend and backup to that mountpoint.
But how would I do this across 3 different DC’s/regions? (Backup to S3 is not an option)
It is of course technically possible to mount the same set of backupdisks from 1 region to all the other regions but that is a pretty horrible solution.
Do all the cluster nodes need access to the all the ‘backup-pieces’, or could I just have 3 different NFS storage backends (1 in each DC) and have the same mountpoint locally on each cluster node in each region/DC and effectively having ‘local’ writes?