HP XP P9500 Storage - Manual (Page 158)

2
.
Stop the Oracle RAC instance of the host where HDLM is to be removed.
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.
Removing HDLM in a multi-path configuration, might cause the disk
contents to become corrupted when the host restarts. Make sure that you
remove HDLM in a single path configuration only.
Figure 3-7 Single Path Configuration and Multi-path Configuration on page
3-88 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.
The MPIO Properties dialog box opens.
5
.
On the MPIO-ed Devices page, select Device Hardware ID DGC RAID,
and then click the Delete button.
6
.
Click the OK button to close the MPIO Properties dialog box.
7
.
Start the removal program.
From Control Panel, choose Add or Remove Programs, and then
Change or Remove Programs. From the list of programs, select
Dynamic Link Manager, and click the Change/Remove button.
8
.
The dlmchkpath utility is automatically executed. If a warning dialog box
appears, follow the procedure below:
¢
Cancel the removal. Reconfigure the system into a single-path
configuration, and then perform the removal again. For details about
the dlmchkpath utility, see The dlmchkpath Utility for Checking HDLM
Paths on page 7-14 .
¢
If a warning dialog box is not displayed, go to the next step.
9
.
Follow the instructions shown in the messages that appear in the window.
If the KAPL09005-E message appears, stop the HDLM manager according
to the procedure in Stopping the HDLM Manager on page 4-15 . After
stopping the HDLM manager, restart the removal program.
10
.
After removal finishes, restart the host.
11
.
Start the Oracle RAC instance of the host.
12
.
For all the hosts that make up the cluster system, perform steps 1
through 11.
13
.
When using Oracle RAC 10g 10.1.0.3.0 or later, or Oracle RAC 11g, you
must return the values of MISSCOUNT and DISKTIMEOUT (the I/O timeout
thresholds of the voting disk) to the values that they were set to before
HDLM was installed.
For details on how to set the value of the MISSCOUNT and DISKTIMEOUT,
contact the company with which you have an Oracle support service
contract.
3-90
Creating an HDLM Environment
Hitachi Dynamic Link Manager User Guide for Windows ®