HP Hitachi Dynamic Link Manager Software - Manual (Page 188)

3. Creating an HDLM Environment
164
From the Administrator: Command Prompt window, execute the
uninstallhdlm
utility for uninstalling HDLM.
For details about the
uninstallhdlm
utility, see 7.8 The uninstallhdlm
Utility for Uninstalling HDLM.
9. The
dlmchkpath
utility is automatically executed. If a warning dialog box
appears, follow the procedure below:
• Cancel the uninstallation. Reconfigure the system into a single-path
configuration, and then perform the uninstallation again. For details about
the
dlmchkpath
utility, see 7.5 The dlmchkpath Utility for Checking
HDLM Paths.
• If a warning dialog box is not displayed, go to the next step.
10. Follow the instructions shown in the messages that appear in the window.
Uninstall HDLM from all the hosts that make up the cluster.
If the KAPL09005-E message appears, stop the HDLM manager according to the
procedure in 4.5.2 Stopping the HDLM Manager. After stopping the HDLM
manager, restart the uninstallation program.
11. When uninstallation finishes, shut down all the hosts that make up the cluster.
12. Confirm that all hosts are turned off, and are in a single-path configuration.
13. Restart all of the hosts that make up the cluster.
(3) Uninstallation Procedures - Oracle RAC Environment
To uninstall HDLM:
1.
Log on to Windows as a member of the Administrators group.
2. Stop the Oracle RAC instance of the host where HDLM is to be uninstalled.
3. If a host and a storage system are connected via multiple paths, reconfigure it so
that only one path connects the host to the storage system.
Uninstalling HDLM in a multi-path configuration, might cause the disk contents
to become corrupted when the host restarts. Make sure that you uninstall HDLM
in a single path configuration only.
Figure 3-7: Single Path Configuration and Multi-path Configuration shows a
single path configuration and a multi-path configuration.
In Windows Server 2008, if you have selected an EMC CX series LU as the
HDLM management-target device, perform the following steps to unregister it.
Otherwise, go to step 7.
4. From Control Panel, choose MPIO.