Sun Cluster System Administration Guide for Solaris OS

ProcedureHow 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.

Note –

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.

  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