HP Hitachi Dynamic Link Manager Software - Manual (Page 270)

3. Creating an HDLM Environment
248
As the utility instructs, enter the name of the VxVM disk device group you want
to unregister.
If the HDLM device has been configured as a Quorum device, perform the following
operations to remove the Quorum device settings.
1.
Check the device ID of the Quorum device.
The following shows an example of executing the command:
# /usr/cluster/bin/scconf -pv | grep Quorum
# /usr/cluster/bin/scdidadm -L
2. Since the device ID may have changed after HDLM uninstallation, on each node
check the correspondence of the device with the internal LUNs of the LUs in the
storage system.
The following shows an example of executing the command:
# /opt/DynamicLinkManager/bin/dlnkmgr view -path
3. When two or more Quorum devices exist, execute the following command until
the number of Quorum devices becomes one. When the number of Quorum
devices finally becomes one, go to step 4.
# /usr/cluster/bin/scconf -r -q
globaldev=Quorum-device's-device-ID
4. Switch to become the superuser in the node that is to be changed to the
maintenance mode in order to release the settings of the last Quorum device.
5. Back up all resource groups and HDLM devices from the node that are to be
changed to the maintenance mode.
The following shows an example of executing the command:
host1# /usr/cluster/bin/scswitch -S -h host1
6. Shut down the node that is to be changed to the maintenance mode so that the
ok
prompt appears.
The following shows an example of executing the command:
host1# shutdown -g0 -y -i0
7. At another node in the same cluster, switch to become the superuser, and then
place the node that was stopped in step 6 into the maintenance mode.
The following shows an example of executing the command:
host2# /usr/cluster/bin/scconf -c -q node=host1,maintstate