Hitachi Dynamic Link Manager Software Users Guide for Windows (7.6)

Windows-installation-folder\inf. In addition, two other oemn.pnf files will
also be created in this folder.
If either the KAPL09257-W or the KAPL09258-E message appears,
perform the following procedure to delete the two oemn.inf files and two
oemn.pnf files:
a. Check the MPIO driver version indicated in the KAPL09257-W or the
KAPL09258-E message.
In this example, the MPIO driver version is n.nn.nnnn.nnnn (n
represents numbers):
KAPL09257-W HDLM cannot be installed on a system where MPIO
n.nn.nnnn.nnnn has already been installed.
b. Find the setup information files (which have the file extension inf)
that contain the version number information, by using the Windows
search function in the following folder:
Windows-installation-folder\inf
There will be two oemn.inf files.
c. Make sure that the contents of the oemn.inf files you have found are
identical to the files mpio.inf and mpdev.inf for the MPIO driver that
is installed on the host.
If you have removed HDLM and then install an earlier version of
HDLM, check the mpio.inf and mpdev.inf files on the DVD for the
later version of HDLM.
d. Delete the setup information files from the following folder:
Windows-installation-folder\inf
If there are any files whose names are the same as the setup
information files but have the extension pnf, you also need to delete
these files.
Note that we strongly recommend that, before deleting any setup
information files, you first back up the files and store the backup files
in a different folder.
¢
If you are installing HDLM on Windows Server 2008 or Windows
Server 2012, do not delete the multi-path I/O feature from the Server
Manager.
• When a host is connected to an Oracle RAC voting disk via multiple paths,
if an I/O timeout occurs for any one of these paths, HDLM will perform a
failover.
Note that, depending on the Oracle RAC settings, Oracle RAC might
determine that a node error has occurred before the failover has
completed, upon which it will re-configure the cluster.
If HDLM is managing the paths that are connected to an Oracle RAC
voting disk, change the following settings to be compatible with your
version of Oracle RAC:
¢
When using Oracle RAC 10g 10.1.0.3.0 or later or Oracle RAC 11g:
Change the value of MISSCOUNT to match the storage system type.
Use the following table to determine a value, and then change the
Creating an HDLM Environment
3-21
Hitachi Dynamic Link Manager User Guide for Windows
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