Explanation
A quorum disk is needed to enable a tie-break when some cluster members are missing. Three quorum disks are usually defined. By default, the SAN Volume Controller automatically allocates quorum disks when managed disks are created; however, the option exists to manually assign quorum disks. This error is reported when there are managed disks or image mode disks but no quorum disks.
To become a quorum disk:
- The MDisk must be accessible by all nodes in the cluster.
- The MDisk must be managed; that is, it must be a member of an MDisk group.
- The MDisk must have free extents.
- The MDisk must be associated with a controller that is enabled for quorum support. If the controller has multiple WWNNs, all of the controller components must be enabled for quorum support.
A quorum disk might not be available because of a fibre-channel network
failure or because of a fibre-channel switch zoning problem.
Action
- Resolve any known fibre-channel network problems.
- Ask the customer to confirm that MDisks have been added to MDisk groups and that those MDisks have free extents and are on a controller that is enabled for use as a provider of quorum disks. Ensure that any controller with multiple WWNNs has all of its components enabled to provide quorum disks. Either create a suitable MDisk or if possible enable quorum support on controllers with which existing MDisks are associated. If at least one managed disk shows a mode of managed and has a non-zero quorum index, mark the error that you have just repaired as "fixed".
- If the customer is unable to make the appropriate changes, ask your software support center for assistance.
- Go to repair verification MAP.
Possible Cause-FRUs or other:
Other:
Configuration error (100%)