Hi All, Following was my problem:
1) My RHEL 6.3 is using CRM shell and corosync.conf. 2) Wanted to move to RHEL6.5 and hence the underlying cluster. Also wanted to move to recommended way of using cluster with CMAN using “cluster.conf”. (Before executing this document I first upgraded my O/S to RHEL6.5.) To solve this problem , found following link: http://floriancrouzat.net/2013/04/rhel-6-4-pacemaker-1-1-8-adding-cman-support-and-getting-rid-of-the-plugin/ (Also got another link which has more or less same thing explain in a documented way: http://clusterlabs.org/doc/en-US/Pacemaker/1.1-plugin/html/Clusters_from_Scratch/_configuring_cman.html) This document is written well and I could execute all of the commands successfully without disturbing my cluster, but I found some issue after executing this last line: crm configure property maintenance-mode=false After executing this command, I lost my VIP. I need to execute this upgrade on my production environment and can’t afford to go “offline” in this way. Few are my questions to execute this upgrade in a more convenient way: 1) What can be the reason of this VIP removal (if someone has already tested with this approach)? 2) Is it right approach, if I do directly assign my VIP (after moving my cluster to maintenance mode) to one of my Ethernet interface and then run the commands given in this document. 3) Is not there some command line option to upgrade from corosync.conf to cluster.conf directly(ideally I felt that we should be able to generate an ). 4) How will I move to the usage of “pcs commands”. This article is given with using “ccs” commands. Shall I assume that once I finish with “ccs”, I can do rest of my configuration using “pcs” commands. Regards,Parveen Jain
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