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тАО10-20-2005 01:54 AM
тАО10-20-2005 01:54 AM
Has anyone used the quorum fix option in DECamds successfully? I couldnt get it working in a test-cluster, so am I overlooking something?
I tried it using DECamds data analyzer on a node outside the cluster AND on a node within the cluster.
Greets,
Jan
Solved! Go to Solution.
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тАО10-20-2005 02:08 AM
тАО10-20-2005 02:08 AM
Re: Quorum fix in DECamds works?
I'm sure I've demonstrated this once or twice over the years...
- do you have write access to the target node from your data analyzer node ?
Test it with trying to force an image exit or modify quotas for a process on that node. Use REPLY/ENABLE on the target node to check the RMDRIVER message.
- what state is the cluster in ? Note that you cannot 'fix quorum' if the node has never joined an existing cluster (i.e. boot one single node with VOTES=1 and EXPECTED_VOTES=2)
Volker.
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тАО10-20-2005 03:35 PM
тАО10-20-2005 03:35 PM
SolutionIf your cluster doesn't have quorum, you won't be able to adjust quorum from any node in the cluster, the trigger needs to come from outside the cluster.
Andy
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тАО10-20-2005 07:27 PM
тАО10-20-2005 07:27 PM
Re: Quorum fix in DECamds works?
I tried the quorum fix in Availability manager from a OpenVMS node outside the cluster and it worked ok, after I set the access to W (write) in AMDS$DRIVER_ACCESS.DAT (something like *\password\W ).
I'll try AMDS later on.
By the way, am I right in that the Quorum fix can ONLY be one from a node outside the cluster?
Greetings , Jan
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тАО10-20-2005 07:31 PM
тАО10-20-2005 07:31 PM
Re: Quorum fix in DECamds works?
if the cluster has lost quorum and your AMDS/Availability Manager data analyzer node would be part of that cluster, it will also hang (waiting for quorum to be regained) and you can't use it...
Volker.
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тАО10-20-2005 07:35 PM
тАО10-20-2005 07:35 PM
Re: Quorum fix in DECamds works?
AMDS$DRIVER_ACCESS.DAT (something like *\password\W ).
Please consider to make your AMDS security a little less generic by adding an ethernet or DECnet address (of each of your possible data analyzer nodes) instead of the wildcard '*'.
Volker.