[Become superuser on any node in the cluster.]
[Determine the quorum device name:]
# scconf -p | grep Quorum
Quorum devices:                                    d2
Quorum device name:                                d2
  Quorum device votes:                             1
  Quorum device enabled:                           yes
  Quorum device name:                              /dev/did/rdsk/d2s2
  Quorum device hosts (enabled):                   phys-schost-1 phys-schost-2
  Quorum device hosts (disabled): 
[Execute the utility:]
# scsetup
Type 1 (Quorum).
Type 2 (Remove a quorum disk).
Answer the questions when prompted.
   You Will Need:         Example:
   quorum device name     d2
[Verify that the scconf command completed successfully:]
 
scconf -r -q globaldev=d2
Command completed successfully.

Type 1 (Quorum).
Type 1 (Add a quorum disk).
Answer the questions when prompted.
   You Will Need:         Example:
   quorum device name     d2

[Verify that the scconf command completed successfully:] 

scconf -a -q globaldev=d2
Command completed successfully.

Quit the scsetup utility.
[Verify that the correct nodes have paths to the quorum device. 
In this example, note that phys-schost-3 has been added to the 
enabled hosts list.]
# scconf -p | grep Quorum
Quorum devices:                                    d2
Quorum device name:                                d2
  Quorum device votes:                             2
  Quorum device enabled:                           yes
  Quorum device name:                              /dev/did/rdsk/d2s2
  Quorum device hosts (enabled):                   phys-schost-1 phys-schost-2
                                                   phys-schost-3
  Quorum device hosts (disabled): 
[Verify that the modified quorum device is online.]
# scstat -q
-- Quorum Votes by Device --
                    Device Name         Present Possible Status
                    -----------         ------- -------- ------
  Device votes:     /dev/did/rdsk/d2s2  1        1       Online
[Verify the quorum device is removed:]
# scstat -q
 
-- Quorum Summary --
 
  Quorum votes possible: 4
  Quorum votes needed:   3
  Quorum votes present:  4
 
-- 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
  Device votes:  /dev/did/rdsk/d4s2  1        1       Online