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6027-4207 [E] Unable to reach any quorum node. Check your firewall or network settings.

Explanation

The node on which this error occurred could not reach any of the quorum nodes. Most of IBM Spectrum® Scale commands will fail on the node, because the commands depend on the CCR. Possible reasons for the failure are:
  1. All quorum nodes are down.
  2. The IBM Storage Scale daemon (mmsdrserv or mmfsd) is not running on any quorum node.
  3. The IBM Storage Scale daemon (mmsdrserv or mmfsd) is not reachable on any quorum node.
  4. The node on which the error occurred cannot communicate with any of the quorum nodes, due to network or firewall configuration issues.

User response

  1. Make sure that at least a majority of quorum nodes are up.
  2. Verify that either the mmsdrserv daemon (if IBM Storage Scale is down) or the mmfsd daemon (if IBM Storage Scale is active) is running on a majority of quorum nodes (for example on Linux® by issuing the ps command).
  3. Make sure the IBM Storage Scale daemons are reachable on a majority of quorum nodes. To identify the problem, issue the mmhealth node show GPFS -v command or the mmnetverify command as described in the topic Analyze network problems with the mmnetverify command.
  4. Make sure the failed node can communicate with at least one quorum node. To identify the problem, issue the mmhealth node show GPFS -v command or the mmnetverify command as described in the topic Analyze network problems with the mmnetverify command.
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