topic Re: know which cluster we are in in Operating System - OpenVMS

know which cluster we are in

Jees Joy — Sat, 12 Aug 2006 01:43:53 GMT

Hi Friends

Which command will help me to show which cluster my node belongs to.

thanks in advance

jees Joy

Re: know which cluster we are in

Volker Halle — Sat, 12 Aug 2006 02:33:17 GMT

Jees,

an OpenVMS cluster itself does not have a 'name'. It consists of a number of OpenVMS nodes. You can show the nodes in a cluster with:

$ SHOW CLUSTER

$ SHOW SYSTEM/CLUSTER/NOPROCESS

The cluster may be accessed via various network protocols (DECnet, LAT, TCPIP) and there may be 'cluster alias names' associated with those network protocols.

Volker.

Re: know which cluster we are in

Robert Gezelter — Sat, 12 Aug 2006 07:40:10 GMT

jees,

As Volker mentioned, SHOW CLUSTER will display the members of your OpenVMS cluster (or at least the ones that your cluster member has seen at some point).

But perhaps your real question has been misphrased? What are you trying to accomplish?

- Bob Gezelter, http://www.rlgsc.com

Re: know which cluster we are in

Jan van den Ende — Sat, 12 Aug 2006 11:23:51 GMT

Jees,

from your Forum Profile:

I have assigned points to 18 of 43 responses to my questions.

Maybe you can find some time to do some assigning?

http://forums1.itrc.hp.com/service/forums/helptips.do?#33

Mind, I do NOT say you necessarily need to give lots of points. It is fully up to _YOU_ to decide how many. If you consider an answer is not deserving any points, you can also assign 0 ( = zero ) points, and then that answer will no longer be counted as unassigned.
Consider, that every poster took at least the trouble of posting for you!

To easily find your streams with unassigned points, click your own name somewhere.
This will bring up your profile.
Near the bottom of that page, under the caption "My Question(s)" you will find "questions or topics with unassigned points " Clicking that will give all, and only, your questions that still have unassigned postings.

Thanks on behalf of your Forum colleagues.

PS. - nothing personal in this. I try to post it to everyone with this kind of assignment ratio in this forum. If you have received a posting like this before - please do not take offence - none is intended!

Proost.

Have one on me.

jpe

Re: know which cluster we are in

Uwe Zessin — Sat, 12 Aug 2006 11:37:45 GMT

An OpenVMS cluster does not have a name,
but it uses a "cluster group number":

$ run sys$system:sysman
SYSMAN> CONFIGURATION SHOW CLUSTER_AUTHORIZATION
Node NODE21: Cluster group number 65240
Multicast address: AB-00-04-01-F2-FF

Re: know which cluster we are in

Robert Walker_8 — Sun, 13 Aug 2006 18:16:16 GMT

Jees,

There is also a thing called a cluster alias - DECnet and TCPIP (If installed).

The cluster alias allows DECnet protocols to reach any specific or round robin approach (based on system availability) depending upon how its configured. Some machines for instance wouldnt receive incoming responses yet send out going as the cluster alias. At one stage we had a four 6x00 VAX cluster with the alias set on outbound so that VMSmail etc could be handled and on inbound to that cluster only two of the systems would accept it.

For TCPIP cluster alias, one can set a preferred host as the alias, and then failover if that host was down.

Robert.

Re: know which cluster we are in

Sastry Karra — Fri, 18 Aug 2006 14:13:20 GMT

Hi Joy,
I don't remember any LEXICAL function that gives the cluster name. F$GETSYI can tell if a node is a member of local cluster.
Thanks,
Sastry Karra
MS MBA
OpenVMS Consultant
http://vmspros.freeservers.com

Re: know which cluster we are in

comarow — Fri, 18 Aug 2006 14:50:22 GMT

Just a quick note.
Network connected cluster with use
a group number and password. So it will
not always work.

Not all clusters have cluster aliases set up. So that won't always work.

You can have single node clusters.

The real answer depends on what problem you
are trying to solve, and your configuration.

Consequently, we are back to show cluster.

Re: know which cluster we are in

Jees Joy — Mon, 21 Aug 2006 10:21:57 GMT

Thank you.