HP OpenVMS Systems

Troubleshooting Cluster Hang?

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The Question is:

 
Both systems can see to the common system disk.
 
Why can we boot only one system ?
 
The secondary system hangs just after to have accessed the quorum disk
 

The Answer is :

 
  Your VOTES and EXPECTED_VOTES and other quorum-related settings may
  be set incorrectly, or potentially your quorum-related values are set
  correctly and are (correctly) preventing two systems from bootstrapping
  from the same system root.  You could have a configuration where hosts
  cannot connect to each other via LAN or CI or other supported cluster
  communications interconnect -- this is the actual underlying behaviour
  when two systems are correctly configured with VOTES and EXPECTED_VOTES
  and that (incorrectly) bootstrap from the same system root on the same
  system disk.  Other variations of configuration problems do exist, of
  course, as do many and various potential hardware errors.
 
  You could also have incorrect settings for the allocation classes, if
  MSCP-based storage controllers and satellite bootstraps are in use.
 
  Please see the OpenVMS FAQ for details on correctly configuring the
  quorum-related settings, and particularly around configuring VOTES
  and EXPECTED_VOTES and the quorum disk.
 
  Please see the OpenVMS Cluster manual for configuration and
  troubleshooting discussions.
 
 

  

     

     
answer written or last revised on ( 31-JUL-2002 )
     
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