We are setting up replication of snapshots for backup purposes on FreeNAS. We setup Ubuntu server and install ZFS on it. We will use this system to receive snapshot for backup purposes. We manually generated ssh key on FreeNAS. This was done by connecting to CLI and running commands below. ssh-keygen -q -t rsa scp
The Distributed Replicated Block Device (DRBD) is a Linux Kernel module that constitutes a distributed storage system. In this blog we will look into setting up very simple replication cluster between 2 partition /dev/sdb1 located on 2 nodes u1.local and u2.local. You can use DRBD to share block devices between Linux servers to share file
In this quick overview we will look at basic definitions of NAS and SAN and also compare advantages of file-level vs block-level storage.