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Full Discussion: Available design options for a cluster hosting many different virtualized Solaris versions
Operating Systems Solaris Available design options for a cluster hosting many different virtualized Solaris versions Post 302902406 by Lyxix on Tuesday 20th of May 2014 11:34:21 AM
Old 05-20-2014
Oracle Getting there...
Peasant:

Thanks so much for your help, and what a huge help it was! I read what you wrote, researched a bit more on LDOMs (that I now know is synonymous with Oracle VM Server, thanks to you), and read an article that someone suggested to me on another site:

ht tps :// blogs.oracle.com/orasysat/entry/zones_clusters_clustering_zones_zoneclusters

This is what it looks like I need to learn about and implement. How does this sound for an extremely broad overview:

Step 1) Cluster the 4 physical servers together (figure out what type of cluster I need, and use Oracle Cluster 4.x on top of Solaris 11.1 or maybe 11.2 beta?)

Step 2) Create Zoneclusters, probably one for each type of OS I need to run (a Sol 8 ZC, and a Sol 10 ZC, and then possibly a Sol 11 ZC to try to migrate the systems up if possible...)

Step 3) Create Logical Domains (LDOMs) for each of my old systems, and put them on the zone clusters, using Oracle VM Server.

In this setup, if a node fails, the virtual system will go down, but I should be able to configure it to start up another node automatically with minimal downtime for the virtual systems?

I realize "I should be" is reaching, since I have virtually zilch cluster experience and limited Solaris experience, but let's rephrase that to "it's possible to". I realize I have a lot of work ahead of me, but thankfully I have no strict time limits to get this implemented and can work one step at a time.

As far as cost goes, the one good thing is that, per the Oracle license agreement, you don't need to pay for SC while it's in the development stages. Directly from the OTN License Agreement for Oracle Solaris Cluster:

"You may not:

- use the Programs for your own internal business purposes (other than developing, testing, prototyping and demonstrating your applications)"

Only after I get the thing actually working and implemented will we have to shell out the big bucks. Presuming I do get it working, I will have achieved the "proof of concept" with these cheaper T5220 servers and the company will then be willing to buy some nice T4's or better to go along with the pricey software.

Thanks so much for your help - does this all sound correct so far?

-Lyxix
 

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LEARN ABOUT HPUX

cmruncl

cmruncl(1m)															       cmruncl(1m)

NAME

       cmruncl - run a high availability cluster

SYNOPSIS

       cmruncl [-f] [-v] [-n node_name...]  [-t | -w none]

DESCRIPTION

       cmruncl causes all nodes in a configured cluster or all nodes specified to start their cluster daemons and form a new cluster.

       To  start  a  cluster,  a user must either be superuser(UID=0), or have an access policy of FULL_ADMIN allowed in the cluster configuration
       file. See access policy in cmquerycl(1m).

       This command should only be run when the cluster is not active on any of the configured nodes.  This command verifies the network  configu-
       ration  before  causing	the nodes to start their cluster daemons.  If a cluster is already running on a subset of the nodes, the cmrunnode
       command should be used to start the remaining nodes and force them to join the existing cluster.

       If node_name is not specified, the cluster daemons will be started on all the nodes in the cluster.  All  nodes	in  the  cluster  must	be
       available for the cluster to start unless a subset of nodes is specified.

   Options
       cmruncl supports the following options:

	      -f	Force cluster startup without warning message and continuation prompt that are printed with the -n option.

	      -v	Verbose output will be displayed.

	      -t	Test  only.  Provide  an assessment of the package placement without affecting the current state of the nodes or packages.
			The -w option is not required with the -t option as -t does not validate network connectivity, but assumes  that  all  the
			nodes can meet any external dependencies such as EMS resources, package subnets, and storage.

	      -n  node_name...
			Start the cluster daemon on the specified subset of node(s).

	      -w none	By default network probing is performed to check that the network connectivity is the same as when the cluster was config-
			ured. Any anomalies are reported before the cluster daemons are started. The -w none option  disables  this  probing.  The
			option should only be used if this network configuration is known to be correct from a recent check.

       RETURN VALUE
	      cmruncl returns the following value:

	       0   Successful completion.
	       1   Command failed.

EXAMPLES

       Run the cluster daemon:

	      cmruncl

       Run the cluster daemons on node1 and node2:

	      cmruncl -n node1 -n node2

AUTHOR

       cmruncl was developed by HP.

SEE ALSO

       cmquerycl(1m), cmhaltcl(1m), cmhaltnode(1m), cmrunnode(1m), cmviewcl(1m), cmeval(1m).

						      Requires Optional Serviceguard Software					       cmruncl(1m)
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