Dear All,
we are planning to rent a new server with RAID1 in the cloud and the purpose of this server will be Qemu KVM virtualization. everything is fine but the show stopper is Disaster recovery Site.
i think of 4 options and all of them are not upto my requirement and limits.
1st, Option was DRBD but splitbrain on 5Mb link will be a killer.
however, the thing come in my mind to sync only updates/Snapshots to DR site the way ZFS and BTRFS does. so our second option become ZFS.
2nd option is ZFS and that is a very high in cost as Lots of RAM,SSDs are involve for ARC1 and 2 so we drop that one.
3rd. option is Btrfs. as it is now Stable but still on back group level or storage level lots of works still needs to be done. so it fails to gain my confidence
4th, was Rsync. it can do the trick , it can also send only updates/snapshots instead of big VMs but it corrupts the VM.
now my mind is empty and nothing is coming inside my mind. can you guys please suggest anything that can be done to replicate the VMs b/w two nodes. when both nodes are in different countries.
Thanks
Myk