HP Hitachi Dynamic Link Manager Software User Manual

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3. Creating an HDLM Environment

If you are using Hyper-V in Windows Server 2008 and an HDLM

management-target device has been allocated as a physical hard disk to a guest

OS, before you perform an HDLM upgrade installation or uninstallation on a host

OS, be sure to unallocate the physical hard disk from the guest OS. After the

upgrade installation or uninstallation has finished, reallocate the physical hard

disk to the guest OS.

If you are using Hyper-V in Windows Server 2008, you cannot use a cluster

environment on a guest OS.

3.4.5 Notes on Related Software

Do not install any multi-path management software other than HDLM. If

multi-path management software other than HDLM has been installed on the

host, uninstall the software, and then restart the host before re-installing HDLM.

HDLM uses the following MPIO drivers according to the host OS:

• In Windows Server 2003

HDLM uses the MPIO driver on the HDLM DVD that is installed during

HDLM installation. The MPIO driver consists of the following files:

mpio.sys

mpspfltr.sys

mpdev.sys

• In Windows Server 2008

HDLM uses the MPIO driver already installed with the OS, not the MPIO

driver on the HDLM installation DVD.

If you attempt to install HDLM on a Windows Server 2003 host on which an

MPIO driver has already been installed, and the MPIO driver version differs from

that of the driver bundled with HDLM, the KAPL09127-W message is output.

This message asks whether it is OK to overwrite the existing MPIO driver. If you

are upgrading HDLM, continue the installation. If any multi-path management

software other than HDLM exists on the host, cancel the installation, and then

uninstall the software.

If you install HDLM, the KAPL09257-W or KAPL09258-E message might

appear. If either of the messages appears, the version of the MPIO driver on the

host is later than the one bundled with HDLM. Also, if you install a piece of

multi-path management software other than HDLM, the MPIO driver might be

installed. In this case, delete the setup information files for the installed MPIO

driver, and then reinstall HDLM. The MPIO driver setup information is defined

in the files

mpio.inf

and

mpdev.inf

. When an MPIO driver is installed, these

files are renamed to

oem

.inf

(where n represents a number), and then

registered in the following folder: Windows-installation-folder

\inf

. In addition,

two other

oem

.pnf

files will also be created in this folder.

If either the KAPL09257-W or the KAPL09258-E message appears, perform the