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Solaris
Available design options for a cluster hosting many different virtualized Solaris versions
Post 302902374 by Peasant on Tuesday 20th of May 2014 08:52:39 AM
05-20-2014
Moderator
LDOM (Oracle VM server for SPARC), with HA LDOM solaris cluster between physical nodes, it will cost you since SC is 'per core'.
Trouble is : If a node fails for some reason, cluster will only boot the LDOM on the next host (couple of minutes of downtime, but downtime).
You can migrate old machines to future LDOMs using flar archive or similar method.
Option is using LDOMs and running Solaris cluster between virtual machines. Depending on your resource (application) you will be able to configure active / active or active / passive.
If a node dies, other node and its ldom with SC will takeover, while you can just import the rest of the machines (ldoms) to working node (what SC HA LDOM does, but automatically, in above example).
Be sure to have auto-boot?=false for all ldom's which are on shared storage.
You don't want to boot root zpool on two nodes at once
You might also use bare metal with branded zones (doubtful solaris 8 will work that way) and Solaris cluster with HA ZONE or Solaris cluster zone cluster for high availability.
Or just importing the zone manually if the node dies, since zone rpool will not import on another node if configured properly (it will give error that it is active on another node).
Hope that helps
Regards
Peasant.
Trouble is : If a node fails for some reason, cluster will only boot the LDOM on the next host (couple of minutes of downtime, but downtime).
You can migrate old machines to future LDOMs using flar archive or similar method.
Option is using LDOMs and running Solaris cluster between virtual machines. Depending on your resource (application) you will be able to configure active / active or active / passive.
If a node dies, other node and its ldom with SC will takeover, while you can just import the rest of the machines (ldoms) to working node (what SC HA LDOM does, but automatically, in above example).
Be sure to have auto-boot?=false for all ldom's which are on shared storage.
You don't want to boot root zpool on two nodes at once
You might also use bare metal with branded zones (doubtful solaris 8 will work that way) and Solaris cluster with HA ZONE or Solaris cluster zone cluster for high availability.
Or just importing the zone manually if the node dies, since zone rpool will not import on another node if configured properly (it will give error that it is active on another node).
Hope that helps
Regards
Peasant.
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LEARN ABOUT DEBIAN
crm_node
PACEMAKER(8) System Administration Utilities PACEMAKER(8) NAME
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: -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, AIS-Only) Remove the (stopped) node with the specified nodeid from the cluster Additional Options: -f, --force AUTHOR
Written by Andrew Beekhof REPORTING BUGS
Report bugs to pacemaker@oss.clusterlabs.org Pacemaker 1.1.7 April 2012 PACEMAKER(8)