hacmp in a 7 node configuration ?

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Operating Systems AIX hacmp in a 7 node configuration ?
# 8  
Old 08-30-2009
Hi Shockneck,

many many thanks for your reply. You have answered all my questions so far.
- DBAs don't have root access to the cluster
- only 2 SAs will have root access - me and my backup - and we will both build the cluster together
- we have a very strong change control in place and our documentation is pretty good
- we are aware this is no 24/7/365 solution - that is why we have an independant DR recovery site and a uat environment for testing
- the A1-A5 servers + 1 spare are running right now in a VCS cluster on AIX ... our engineering doesnt support it past 9/2010 - that is basically why we're going to move it to hacmp
- we will have almost a year for build and testing
- we have a weekend greenzone of 36 hrs for the environment and always patch all nodes in any cluster at the same time
- we will have hartbeat on disk on at least 2 different mini-devicegroups as you suggested

Once more thank you for all your suggestions - I will keep you in the loop if problems arise as I can see you don't have any major objection Smilie

Thank you in addition for the EMC bug tip - this explains why we have the problems on the 2 node clusters ... our SAN engineering is probably aware but has not yet certified the fix - I will ask them on monday for the fix.

Kind regards
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PACEMAKER(8)						  System Administration Utilities					      PACEMAKER(8)

Pacemaker - Part of the Pacemaker cluster resource manager SYNOPSIS
crm_node command [options] DESCRIPTION
crm_node - Tool for displaying low-level node information OPTIONS
-?, --help This text -$, --version Version information -V, --verbose Increase debug output -Q, --quiet Essential output only Stack: -A, --openais Only try connecting to an OpenAIS-based cluster -H, --heartbeat Only try connecting to a Heartbeat-based cluster Commands: -n, --name Display the name used by the cluster for this node -N, --name-for-id=value Display the name used by the cluster for the node with the specified id -e, --epoch Display the epoch during which this node joined the cluster -q, --quorum Display a 1 if our partition has quorum, 0 if not -l, --list Display all known members (past and present) of this cluster (Not available for heartbeat clusters) -p, --partition Display the members of this partition -i, --cluster-id Display this node's cluster id -R, --remove=value (Advanced) Remove the (stopped) node with the specified name from Pacemaker's configuration and caches In the case of Heartbeat, CMAN and Corosync 2.0, requires that the node has already been removed from the underlying cluster Additional Options: -f, --force AUTHOR
Written by Andrew Beekhof REPORTING BUGS
Report bugs to pacemaker@oss.clusterlabs.org Pacemaker 1.1.10-29.el7 June 2014 PACEMAKER(8)