[Pacemaker] Linux HA setup for CentOS 6.5

[Sihan Goi]

Hi,

Is there a tutorial showing how to get a basic Linux HA setup with
replicated storage (via DRBD) working on CentOS 6.5? I want to have mySQL
as the HA resource with the database replicated across the nodes. I've
scoured the web for one but it seems that I get stuck in each one somewhere.

To elaborate, I have 2 CentOS 6.5 nodes configured with distinct hostnames
and static IPs. They are connected to a wireless AP, and can ping each
other.

I tried following this guide - http://clusterlabs.org/quickstart-redhat.html
However, cman will not start when NetworkManager is running, and my nodes
cannot connect to the wireless AP without NetworkManager running. Am I
missing something or is that the stupidest dependency ever? How is a
cluster supposed to work when the nodes aren't connected to one another?

I also tried following the "clusters from scratch" guide but that seems to
rely on systemctl calls which aren't available on CentOS 6.5.

Any help?

-- 
- Goi Sihan
goister at gmail.com
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