HiCommand Dynamic Link Manager User's Guide (for Windows(R))

3.4.1 Notes on HBA and HBA driver

• When using the Storport Miniport driver as an HBA driver in Windows Server 2003, install QFE 838894 or later for the Microsoft Storport driver or install 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 subsystem 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.

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