Error During Creating a Cluster using MC/ServiceGaurd

[barun]

Hi All,

I am new to the cluster concepts and trying to configure a 2 node cluster.
After making all the network connections and setting required environment variables, i.e
i configured two lan cards on each one of them, one of them general network and other connected together to form the HeartBeat Network. But there seems to be some problem here,
while doing 'cmcheckconf', i am getting an error. Here is the output of the same:

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lcla165> cmcheckconf -k -v -C /etc/cmcluster/clust1.config
Begin cluster verification...
Checking cluster file: /etc/cmcluster/clust1.config
Note : a NODE_TIMEOUT value of 2000000 was found in line 128. This value
is recommended if the top priority is to reform the cluster as fast
as possible in case of failure. If the top priority is to minimize
reformations, consider using a higher setting. For more information see
the cluster configuration ASCII file or the Managing Serviceguard manual.
Checking nodes ... Done
Checking existing configuration ... Done
Gathering storage information
Found 12 devices on node lcla162
Found 3 devices on node lcla165
Analysis of 15 devices should take approximately 3 seconds
0%----10%----20%----30%----40%----50%----60%----70%----80%----90%----100%
Found 2 volume groups on node lcla162
Found 2 volume groups on node lcla165
Analysis of 4 volume groups should take approximately 1 seconds
0%----10%----20%----30%----40%----50%----60%----70%----80%----90%----100%
Volume group /dev/vglock is configured differently on node lcla162 than on node lcla165
Volume group /dev/vglock is configured differently on node lcla165 than on node lcla162
Volume group /dev/vgdata is configured differently on node lcla162 than on node lcla165
Volume group /dev/vgdata is configured differently on node lcla165 than on node lcla162
Gathering network information
Beginning network probing (this may take a while)
Completed network probing
Detected a partition of IPv4 subnet 80.0.0.0.
Partition 1
lcla162 lan1
Partition 2
lcla165 lan1
Failed to evaluate network
cmcheckconf: Unable to reconcile configuration file /etc/cmcluster/clust1.config
with discovered configuration information.
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Also, the controller number for the devices that i had used for creating the cluster lock volume were different.I checked the volumes on both the host and was able to mount them and work.

I am attaching the cluster.conf file along. I would appreciate if anyone can help me out on this.
Thanks in advance

[Zeev Schultz]

reminds me of some issue that I've seen once with MC SG 11.16 and fixed with patches. What is your SG version?

[Steven E. Protter · Accepted solution]

Shalom,

Version of serviceguard please?

Network connectivity is the key here. Either the nodes can not connect at all, due to network configuration or a problem with the network infrastructure or....

You have not set up cmnodelist security to permit proper secure access between the nodes.

Thats kinf of an RTFM issue. Skipping steps is the most common cause of this problem after network issues.

SEP

[Rita C Workman]

Hmmm....
2 seconds for fastest, but 5-8 seconds for signifcant portion of installations. Or my preference 10 seconds.
Why don't you just try and increase that time (NODE) and try doubling the setting from 1 second on heartbeat to 2. Lets see if you get past this error....

Now on Network....
Did you set up a failover lan connection on each box, with NO IP assigned to it? I don't see it in your configuration - just lan0 and Heartbeat. You need a failover connection for each box.

Just a thought,
Rita

[barun]

The issue was with the connections as pointed out. Was able to resolve the issue, once I did a complete recheck of the connections. The heatbeat was not setup properly.