HiCommand Dynamic Link Manager (HDLM) for Windows Systems User's Guide (HIT5201-96001, January 2008)

HiCommand
®
Dynamic Link Manager (HDLM) for Windows
®
Systems User’s Guide 59
3.4 Notes on Creating an HDLM Environment
When you are building an HDLM environment, note the points listed below.
3.4.1 Notes on HBAs and HBA Drivers
 When using the Storport Miniport driver as an HBA driver in Windows Server 2003, install
QFE 838894 or later for the Microsoft Storport driver install or Windows Server 2003 SP1
or later, before installing HDLM. If you have installed HDLM in an environment where
either QFE 838894 or later or Windows Server 2003 SP1 or later was not installed, the
following problems might occur:
– When HDLM is installed in an environment where the boot disk is an HDLM
management-target disk, Windows Server 2003 will not be able to start. If this
happens, you must reinstall Windows Server 2003.
– When HDLM is uninstalled, LUs managed by HDLM will no longer be available after
the system is restarted. If this happens, perform the following procedure:
1. Stop applications that access the LUs managed by HDLM.
2. In the Device Manager window, in the View menu choose Devices by type.
3. Double-click Disk Drives to display a list of disk drives.
4. In the list, select the disk drive for the LUs managed by HDLM, and then choose
Action and Properties.
5. Click the Driver tab
6. Click the Driver Details button.
The Driver File Details window is displayed.
7. If the driver file is mpdev.sys, click the Delete button to delete the device
from the system.
8. Perform steps 5 through 7 for all the disk drives of LUs managed by HDLM.
9. Choose Action and then Scan for hardware changes.
10. In the Disk Management window, click Rescan Disks.
 Note the following if you use a QLogic HBA driver version earlier than 8.2.3.11 and
change the configuration to a multipath configuration after HDLM installation: If all
paths are connected to a single CHA of the storage system and an error occurred in the
connected CHA, all the paths will also fail. This might slow the path failover. Make sure
that you connect the paths to multiple CHAs.
 When you use multiple HBAs, make sure that the models of the HBAs are the same. Also
make sure that the HBA firmware versions and host driver versions are the same.
3.4.2 Notes on Storage Systems
 You must not change the vendor ID and product ID of the storage system. If you change
these IDs, HDLM cannot recognize the storage system.