IBM TotalStorage DS300 Best Practices Manual page 346

adapter is not required to be usable within the operating system. An NDIS
driver can be installed to use the iSCSI host bus adapter like any other
network card. This driver is included in a combined package of storport and
NDIS driver.
Note: When using the iSCSI HBA in the operating system additionally as a
regular network adapter, assign a different IP address from the same IP
range as it was done in the adapter BIOS or with SANsurfer Pro.
Install the dummy driver.
10.Right-click the Ethernet controller device in other devices. In the context
menu click Update Driver ... .
Figure 7-154 iSCSI Server Adapter — Network controller driver installation
11.Select No, not this time and click Next.
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IBM TotalStorage DS300 and DS400 Best Practices Guide