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11-20-2009 01:12 AM
11-20-2009 01:12 AM
e.g
Node name : AXQQL
Decnet ID : 1.4
Node booted up as a cluster member and shutdown
New Node required to be added in the same cluster :
Node name : AXQQP
Decnet ID : 1.4
Is it possible without a reboot ?
Thanks
Solved! Go to Solution.
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11-20-2009 04:31 AM
11-20-2009 04:31 AM
SolutionThe SCSSYSTEMID and SCS node name are intertwined within the cluster. If you want to change one without the other, you need to reboot the other nodes in order to drop the connection between the two.
You can, on the other hand, change both the SCS node name and SYSSYSTEMID and the node can then rejoin the cluster as neither the name nor the ID would be known to the cluster.
Steve
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11-20-2009 05:20 AM
11-20-2009 05:20 AM
Re: Node
This violates core tenants of cluster addressing.
You must reboot the whole cluster when either the SCS address or the SCS node name changes; when both do not change. Which means that both the address and the name are changed together, or the whole cluster gets rebooted.
Pick a different DECnet address. Or reboot it all.
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11-24-2009 04:09 AM
11-24-2009 04:09 AM
Re: Node
This MAY or MAY NOT be what you need, but you CAN set up an EXTRA DECnet address for the whole cluster (or even several nodes of a cluster, eg all ALPHA nodes in a mixed cluster).
This address is called "DECnet cluster alias", and you enable (on each node)incoming "cluster addressed" traffic by NCL ENABLE INCOMING ALIAS TRUE; similarly, to sign outgoing traffic as coming from the cluster by ENABLE OUTGOING ALIAS TRUE
Agian, this may or may not suit your requirements.
Proost.
Have one on me.
jpe
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11-25-2009 08:41 AM
11-25-2009 08:41 AM
Re: Node
Steve
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11-25-2009 08:54 AM
11-25-2009 08:54 AM
Re: Node
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11-26-2009 12:17 AM
11-26-2009 12:17 AM
Re: Node
Someone claims that it can be done without a reboot.
I cannot be sure of how that would be possible.
The idea which was proposed was a clean shutdown of the system and boot up the other which is going to hung till the time out (not sure what time out is being referred).
Will keep you posted if it is a success.
Any comments ?
Thanks
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11-26-2009 05:31 AM
11-26-2009 05:31 AM
Re: Node
More questions than comments:
What are you really trying to accomplish with a duplicate Decnet address?
Why does the Decnet address need to be the same and the node name different?
Assuming this could possibly work, which system do you expect to respond to 1.4?
Cheers,
Art
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11-26-2009 06:25 AM
11-26-2009 06:25 AM
Re: Node
Suggestions? You will want to be extremely skeptical around what this "someone" might tell you about VOTES and EXPECTED_VOTES and other data-critical cluster settings.
Suggestions? You'll need to reboot the whole cluster here, or you'll need to change both the SCS name and SCS address, if you want this node to be admitted to the cluster.
Suggestions? Find a formal escalation path or skilled staffer for your support questions and for your OpenVMS queries and for assistance with more general technical mentoring and other such.
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