Hitachi Dynamic Link Manager Software Users Guide for Windows (6.6) (HIT5201-96005, April 2011)

3. Creating an HDLM Environment
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and Service Pack Version, which are displayed by executing the following
command, are the same, then the versions of HDLM will also be the same:
>dlnkmgr view -sys -sfunc
3.4.4 Notes on Windows
 When you upgrade or re-install Windows Server 2003 or install a Windows
Server 2003 service pack, be sure to uninstall HDLM beforehand. If the OS is
upgraded or re-installed while HDLM is installed, HDLM might not be able to
manage paths properly because OS device drivers that affect HDLM operations
will be updated.
 We recommend that you install Windows and HDLM on an internal host disk. If
you install them on an HDLM management-target disk, the following problems
might occur:
• You might not be able to store the OS crash-dump and error information on
the disk.
• After uninstalling HDLM, some files might not be deleted correctly.
 When restoring a Windows system disk from a backup, restore the disk to a
single-path configuration.
After restoring the disk, confirm that HDLM is running properly, and then change
to a multi-path configuration.
 If the size of the Path system environment variable is 1024 bytes or more, the
HDLM manager might not be able to start. When the HDLM manager fails to
start, the following message is output to the Windows event log (system):
Source: Service Control Manager
Type: Error
Event ID: 7000
Description: DLMManager service could not be started for the
following reason: The service did not respond to the start
request or control request within the specified period.
If the HDLM manager fails to start, delete all unnecessary character strings in the
path so that the size of the
Path system environment variable is 1024 bytes or
less:
For Windows Server 2003 (excluding the x86 edition) or Windows Server 2008
(excluding the x86 edition):
Windows-installation-drive
:\Program Files (x86)\Common
Files\Hitachi