How to Remove the Last Quorum Device From a Cluster

If the device you intend to remove is not the last quorum device in the cluster, use the previous procedure, How to Remove a Quorum Device.

All two-node clusters require at least one configured quorum device. If this is the last quorum device on a two-node cluster, the cluster must be placed into install mode before scconf(1M) allows you to remove the device from the configuration. This should only be done if a node is being removed from the cluster.

Steps

1. Become superuser on any node in the cluster and place the node to be removed in maintenance state.

   See How to Put a Node Into Maintenance State.

2. Place the cluster in install mode.

   # scconf -c -q installmode

3. Remove the quorum device using the scconf command.

   The scsetup(1M) cluster-administration menu options are not available while the cluster is in install mode.

   # scconf -r -q name=device

4. Verify that the quorum device has been removed.

   # scstat -q

Example 5–4 Removing the Last Quorum Device

This example shows how to remove the last remaining quorum device in a cluster configuration.

[Become superuser on any node.]
[Place the cluster in install mode:]
# scconf -c -q installmode
[Remove the quorum device:]
# scconf -r -q name=d3
[Verify the quorum device has been removed:]
# scstat -q
 
-- Quorum Summary --
 
  Quorum votes possible:      2
  Quorum votes needed:        2
  Quorum votes present:       2
 
-- Quorum Votes by Node --
 
                    Node Name           Present Possible Status
                    ---------           ------- -------- ------
  Node votes:       phys-schost-1       1        1       Online
  Node votes:       phys-schost-2       1        1       Online
 
-- Quorum Votes by Device --
 
                    Device Name         Present Possible Status
                    -----------         ------- -------- ------