Wow, Thanks for sharing the stuff to me. I really appreciate and kind of excited to get a reply just in a day. Yeah, i wish i can join the IRC to get quick answers, i must first check if my office network has it open. Thanks Again. I will go through the stuff u sent me and will come back with more appropriate questions to what i like to setup at my place.<div> </div><div>Param <div class="gmail_quote">On Wed, Aug 8, 2012 at 7:03 PM, Digimer <<a href="mailto:lists@alteeve.ca" target="_blank">lists@alteeve.ca</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div class="HOEnZb"><div class="h5">On 08/08/2012 09:01 AM, PARAM KRISH wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> 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 </blockquote> </div></div> Welcome! 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; <a href="https://alteeve.com/w/2-Node_Red_Hat_KVM_Cluster_Tutorial" target="_blank">https://alteeve.com/w/2-Node_Red_Hat_KVM_Cluster_Tutorial</a> 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. Cheers! -- Digimer Papers and Projects: <a href="https://alteeve.com" target="_blank">https://alteeve.com</a> </blockquote></div> </div>