PowerHA - assistant can't find network Post: 302468894

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Operating Systems AIX PowerHA - assistant can't find network Post 302468894 by shockneck on Thursday 4th of November 2010 05:46:53 AM

11-04-2010

Registered User

Quote:

Originally Posted by Koen87

[...]Still getting the same error. It's driving me crazy. I've set up a new cluster perfectly without the assistent using this configuration, why won't the assistant do it?

The reason for the Config Assistant was/is that many admins found/find configuring a cluster from the SMIT panels confusing if not difficult. So IBM tried to make this a lot easier by offering to "configure a PowerHA cluster by just answering 5 questions..." However, the price is that the Config Assistant for the basic two-node cluster is limited in both the type of cluster that is being configured and the prereqs it expects. If anything during first node discovery fails (that is where you are at the moment) the Assistant stops.

You probably checked that a hundred times by now but there still is something in the communication between the nodes that causes a problem. Some differences in the serves configuration are difficult to find. Try to let the cluster nodes discover the setup from both sides and look at the messages to find where information is missing/blocked.

Btw what I usually do when installing basic clusters from scratch with the Installation Assistant is that I install a single node plus the PowerHA software. Then I clone this node with mksysb to the secondary node. At that moment I have two nodes which are identical save hostname, uname and addresses.

However, if you can configure a working cluster with the PowerHA SMIT panels you should not need to worry about whether the Assistant works for you or not. In this case you are much more flexible already.

shockneck

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LEARN ABOUT HPUX

sgmgr

sgmgr(1M)																 sgmgr(1M)

NAME

       sgmgr - Serviceguard Manager

SYNOPSIS

       filename ] | COMserver username password cluster_name ...]]  COMserver2

   Remarks
       Serviceguard Manager is the graphical user interface for Serviceguard or Serviceguard Extension for RAC software, Version A.11.12 or later,
       Serviceguard products are not included in the standard HP-UX operating system.

DESCRIPTION

       The command starts Serviceguard Manager, the graphical user interface for Serviceguard clusters.  Serviceguard Manager can be installed	on
       HP-UX,  Linux,  or  Windows.  Serviceguard Manager can be used to view saved data files of a single cluster, or to see running clusters. To
       see the "live" cluster map, Serviceguard Manager connects to a Serviceguard node on the same subnet as those clusters,  specifically  to  a
       part of Serviceguard called the Cluster Object Manager (COM).

   Options
       supports  the  options  listed below. No options are required. If any option is not specified, the user will be prompted to supply it after
       the interface opens.

	      Open a previously saved or example object data file. The file will have the .sgm extension. It can display only  one  cluster.  This
	      option cannot be used with any other options.

	      Specify  the  Serviceguard node that will be the server. This node's COM will query cluster objects running on its subnets, and will
	      report their status and configuration.  Servers with Serviceguard Version A.11.12 or later can monitor clusters. Servers	with  Ser-
	      viceguard Version A.11.14 or later can also perform administrative actions. Servers with Version A.11.16 or later can also configure
	      clusters.  To specify multiple sessions, repeat the -s option.

	      The user login name for the COMserver node. Valid only if COMserver is specified.

	      The user password on the COMserver node. Valid only if username is specified.

	      In creating the map, the COMserver will include the cluster where it is a member.

	      In creating the map, the COMserver will report information
			     about the specified cluster_name(s). Specify clusters with the following cluster software installed:  MC/Serviceguard
			     Version  A.10.10  or  later,  MC/LockManager  Version A.11.02 or later, Serviceguard OPS or Extension for RAC Version
			     A.11.08 or later, and all versions of MetroClusters and ContinentalClusters.

	      To see several clusters, repeat the -c option.

	      If you specify this unused nodes option all COMservers will report information about nodes that have Serviceguard installed, but are
	      not currently configured in any cluster.

	      To connect to another COMserver for another session, repeat the -s options.

AUTHOR

       was developed by HP.

SEE ALSO

       See documents at http://docs.hp.com/hpux/ha including:

       Managing Serviceguard.
       Configuring OPS Clusters with Serviceguard OPS Edition.
       Using Serviceguard Extension for Real Application Cluster (RAC).

Series 700 or 800		    Works with Optional Serviceguard or Serviceguard Extension for RAC Software 			 sgmgr(1M)