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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
mkqdisk
mkqdisk(8) Quorum Disk Management mkqdisk(8) NAME
mkqdisk - Cluster Quorum Disk Utility WARNING
Use of this command can cause the cluster to malfunction. SYNOPSIS
mkqdisk [-?|-h] | [-L] | [-f label] [-c device -l label] [-d [-d ...]] DESCRIPTION
The mkqdisk command is used to create a new quorum disk or display existing quorum disks accessible from a given cluster node. OPTIONS
-c device -l label Initialize a new cluster quorum disk. This will destroy all data on the given device. If a cluster is currently using that device as a quorum disk, the entire cluster will malfunction. Do not run this on an active cluster when qdiskd is running. Only one device on the SAN should ever have the given label; using multiple different devices is currently not supported (it is expected a RAID array is used for quorum disk redundancy). The label can be any textual string up to 127 characters - and is therefore enough space to hold a UUID created with uuidgen(1). -f label Find the cluster quorum disk with the given label and display information about it. -L Display information on all accessible cluster quorum disks. -d Increase debugging level. Specify multiple times for more information. Currently, specifying more than twice has no effect. SEE ALSO
qdisk(5), qdiskd(8), uuidgen(1) July 2006 mkqdisk(8)