HP Hitachi Dynamic Link Manager Software - Manual (Page 352)

4. HDLM Operation
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3. If setup is being performed for Quorum devices and disk device groups in the LU
to be managed by HDLM, release the LU settings.
When you unregister the SDS or SVM diskset, the diskset data will be deleted so
first back up any necessary data. For details on how to release settings for Quorum
devices and VxVM disk groups, see (2) Remove Sun Cluster Settings of
3.17.2 Preparations for HDLM Uninstallation.
For details on how to release SDS or SVM disksets, see (5) Remove SDS Settings
or (6) Remove SVM Settings of 3.17.2 Preparations for HDLM Uninstallation.
4. Make sure that registration is performed for the key used in disk reservation for
the LU to be managed by HDLM. Execute the following command on any node:
# /usr/cluster/lib/sc/scsi -c inkeys -d
the-name-of-the-logical-device-file-of-slice-2-of-the-LU-to-be-managed-by-HD
LM
The following shows an example of executing the command:
# /usr/cluster/lib/sc/scsi -c inkeys -d /dev/rdsk/
c3t50060E80033A9902d2s2
If the key is displayed, perform the steps beginning with step 5. Even when you
release the setup for Quorum devices and disk device groups, since the key used
for disk reservation will remain registered, you will need to restart the node in
non-cluster mode and unregister the key.
If the key is not displayed, perform the steps beginning with step 9.
5. Simultaneously stop all nodes in the cluster.
Execute the following command on any node:
# /usr/cluster/bin/scshutdown -g0 -y
6. Start all nodes in the cluster in non-cluster mode.
At the
ok
prompt, execute the
boot -x
command.
7. Unregister the key for the LU to be managed by HDLM.
Execute the following command on any node:
# /usr/cluster/lib/sc/scsi -c scrub -d
name-of-the-logical-device-file-of-slice-2-of-the-LU-to-be-managed-by HDLM