IBM TotalStorage DS300 Best Practices Manual page 557

QLogic provides a special Device Specific Module for Microsoft multipath
input/output driver. This DSM is specifically designed to work with the IBM
TotalStorage DS400. See 3.4.4, "DS400 failover" on page 51 for failover
details.
For more information about MPIO, see Microsoft whitepaper "Highly Available
Storage: Multipathing and the Microsoft MPIO Driver Architecture":
http://www.microsoft.com/windowsserver2003/technologies/storage/mpio/defaul
t.mspx
Frequently Asked Questions: Microsoft Multipath I/O:
http://www.microsoft.com/WindowsServer2003/technologies/storage/mpio/faq.ms
px
To install the QLogic Device Specific Module together with the Multipath IO
driver perform the following steps.
a. Download and extract the driver archive. See DS400 software and driver
matrix for the correct versions of the HBA driver and the DSM and MPIO.
http://www.ibm.com/support/docview.wss?rs=1110&uid=psg1MIGR-58619
b. Run the install.bat file included in the driver archive.
Figure 9-133 Content of the DSM and MPI O driver archive
c. Confirm the open file security warning by clicking Run.
Chapter 9. TotalStorage DS400 installation
539