HP XP P9500 Storage - Manual (Page 247)

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 removal, 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
8
.
Confirm that the cluster node enters the maintenance mode.
Creating an HDLM Environment
3-181
Hitachi Dynamic Link Manager User Guide for Solaris ®