Assuming a backup window of 12 hours, you need to send data at 25GB/s to backup solution. Using 10G Ethernet on hosts you need at least 25 host to handle 25GB/s. You can create an EC gluster cluster that can handle this rates, or you just backup valuable data from inside VMs using open source backup tools like borg,attic,restic , etc... On Thu, Mar 23, 2017 at 7:48 PM, Gandalf Corvotempesta <gandalf.corvotempesta@xxxxxxxxx> wrote: > 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 > > _______________________________________________ > Gluster-users mailing list > Gluster-users@xxxxxxxxxxx > http://lists.gluster.org/mailman/listinfo/gluster-users _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://lists.gluster.org/mailman/listinfo/gluster-users
