[Gluster-users] Backups

[Gandalf Corvotempesta]

Let's assume a 1PB storage full of VMs images with each brick over ZFS,
replica 3, sharding enabled

How do you backup/restore that amount of data?

Backing up daily is impossible, you'll never finish the backup that the
following one is starting (in other words, you need more than 24 hours)

Restoring is even worse. You need more than 24 hours with the whole cluster
down

You can't rely on ZFS snapshot due to sharding (the snapshot took from one
node is useless without all other node related at the same shard) and you
still have the same restore speed

How do you backup this?

Even georep isn't enough, if you have to restore the whole storage in case
of disaster
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