[Pacemaker] Linux HA setup for CentOS 6.5

[Sihan Goi]

There aren't any config files in /etc/sysconfig/network-scripts. When I was
using CentOS 7, the config files were there (ifcfg-something) but in this
CentOS 6.5 installation, they are missing.

If is possible to not use cman, and just use corosync and pacemaker? If so,
how?

On Wed, Oct 15, 2014 at 11:22 AM, Digimer <lists at alteeve.ca> wrote:

> You can manually configure the wireless LAN without NetworkManager. If you
> take a look, there should be existing config files in
> /etc/sysconfig/network-scripts/ for the wireless connection. I've not
> done it myself since many Fedora's ago, but I believe you can change
> NMCONTROLLER="no" and then start it up with /etc/sysconfig/network start. I
> could be a bit wrong, but I am sure you can make wireless work without NM.
>
> Question; Servers with WLAN? I assume these won't be used for corosync?
>
> digimer
>
>
> On 14/10/14 11:17 PM, Sihan Goi wrote:
>
>> 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 <mailto:goister at gmail.com>
>>
>>
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>>
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>> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
>> Bugs: http://bugs.clusterlabs.org
>>
>>
>
> --
> Digimer
> Papers and Projects: https://alteeve.ca/w/
> What if the cure for cancer is trapped in the mind of a person without
> access to education?
>
> _______________________________________________
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>
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs: http://bugs.clusterlabs.org
>



-- 
- Goi Sihan
goister at gmail.com
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