For a 2 node setup, you cant reliably use glusterfs for master-master.
DRDB is designed for a 2node cluster
If you still want to use glusterfs, Create 2 sets of replicated slaves
with 6 brocks each. Each node has its own master and its slave is
replicated to the other server. This provides a backup. Reads are local,
writes are replicated and non realtime, this allows you to have minmal
network load.
Adding a 3rd node to gluster fs is pretty easy.
Ceph usually works better for VM;s and reducing IO.
On 10/23/2014 3:32 AM, Lindsay Mathieson wrote:
I'm playing around with GlusterFS and have a few questions. Have got a
test setup running on a 2 node cluster (using external USB Drives!)
that works surprisingly well :) and I must say it was very easy to setup.
1. I wanted to implement a distributed/replicated file system. Is
GlusterFS the best choice for a 2 node system? Would it be easy to add
a third node later?
2. When launching a VM off Node 1 or Node 2, is it accessing the local
hard disk directly, or does it all go through a network share? Our
network is only 1GB and it would be nice to take some of the load off it.
Should I be asking these question on the forum rather than the list?
Thanks,
--
Lindsay
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