[Linux-cluster] RHEL Cluster

Digimer lists at alteeve.ca
Wed Aug 8 13:33:02 UTC 2012

On 08/08/2012 09:01 AM, PARAM KRISH wrote:
> Guys, I just joined this dl today. Kind of excited to know of the people
> here...
> I have worked in Sun / Veritas Cluster before, but liking to explore
> RHEL Cluster and planning to use it for one of our production setup.
> I would like to know few things to start with..
> 1. We have Cisco UCS blades in which i plan to put ESX and install RHEL
> cluster. Does it work/supported ?
> 2. Which version of RHEL cluster you guys recommend for a production
> setup ?
> 3. Does the virtual environment completely supported in RHEL or any
> limitations, whatsoever that i must be aware before considering ?
> Any details in this would be highly regarded.
> thanks
> Param


   The first question is "What kind of cluster are you trying to 
build?". That will influence a lot of the advice you get.

   The backing hardware is generally irrelevant given two conditions; 
Does the hardware support RHEL? Do you have a mechanism for fencing (ie: 
IPMI or similar)? Of course, if you create VMs then this is further 
abstracted. You can use 'fence_vmware' in that case.

   RHEL6 offers Cluster Stable 3, which is the most recent version 
available on RHEL. It is the version you should use.

   You won't be able to run VMs on top of VMs, so you can't build a 
cluster to support highly-available virtual machines if the nodes 
themselves are VMs. Other services are fine though.

   This tutorial covers a lot of stuff that may not apply to you, but 
the opening "Concepts" part you may find useful as it covers the various 
parts in RHEL cluster software;


   Lastly, if you are on IRC, we've got a semi-active channel on 
freenode called "#linux-cluster". Members span most all timezones, so if 
you visit, hang around if you don't get an answer quickly. Folks 
generally read the scroll-back when they return.


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