How to Remove a Quorum Device

You can also accomplish this procedure by using the SunPlex Manager GUI. See the SunPlex Manager online help for more information.

When a quorum device is removed, it no longer participates in the voting to establish quorum. Note that all two-node clusters require that at least one quorum device be configured. If this is the last quorum device on a cluster, scconf(1M) will fail to remove the device from the configuration.

If the device you intend to remove is the last quorum device in the cluster, see the procedure How to Remove the Last Quorum Device From a Cluster.

Steps

1. Become superuser on any node in the cluster.

2. Determine the quorum device to be removed.

   # scconf -pv | grep Quorum

3. Execute the scsetup(1M) utility.

   # scsetup

   The Main Menu is displayed.

4. Type the number that corresponds to the option for Quorum.

5. Type the number that corresponds with the option to remove a quorum device.

   Answer the questions displayed during the removal process.

6. Quit scsetup.

7. Verify that the quorum device is removed.

   # scstat -q

Example 5–3 Removing a Quorum Device

This example shows how to remove a quorum device from a cluster with two or more quorum devices configured.

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

[Determine the quorum device to be removed:]
# scconf -pv | grep Quorum
[Execute the scsetup utility:]
# scsetup
Select Quorum>Remove a quorum device.
Answer the questions when prompted.
[Verify that the scconf command completed successfully:]
 
scconf -r -q globaldev=d4
 
    Command completed successfully.
Quit the scsetup Quorum Menu and Main Menu.
[Verify the quorum device is removed:]
# scstat -q
 
-- Quorum Summary --
 
  Quorum votes possible:      3
  Quorum votes needed:        2
  Quorum votes present:       3
 
-- 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
                 -----------         ------- -------- ------
  Device votes:  /dev/did/rdsk/d3s2  1        1       Online