[Info-vax] Expected votes Was: troubles with quorum disk

[Stephen Hoffman]

On 2013-01-09 19:50:52 +0000, Tom Linden said:

> ...A while ago we had a power outage that lasted longer than the
> UPS batteries.  The cluster did not come back up automatically.  The 
> licenses had not
> been updated on one of the nodes, an oversight.  On closer exam I noted 
> that expected_votes
> in the 4 node cluster was set at 3 on the other 3 nodes and 7 on the 
> errant node.   The cluster
> was once 7 nodes but have reduced it.  I tried setting expected votes 
> to 4 in SYSGEN and did a
> WRITE CURRENT  but it did not change it.  What do I need to do?

o set the EXPECTED_VOTES parameter to the total number of votes 
expected within the cluster, both in MODPARAMS.DAT and in the system 
parameters

o WRITE CURRENT saves the settings in the database.  It's applicable 
here, as it's the value preserved over reboot.  Also update 
MODPARAMS.DAT.

o WRITE ACTIVE saves the running values.  It's not applicable here.

o update your preferred calendar to give you a month or a week advance 
of notice of the PAK expiration(s).

o to avoid rebooting the cluster to adjust the quorum value, you can 
tweak the current cluster quorum settings.  See the HELP for the SET 
CLUSTER /EXEPECTED command for details.

o test your cluster reboot periodically, either as a rolling reboot or 
as a cluster reboot.  Server uptime is a measure of how long it's been 
since you've last tested your critical processes, after all.




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