Configuring the QLogic HBA for hosts that run the Windows Server operating system

After you install the QLogic HBA and the device driver on hosts that run a Microsoft Windows Server operating system, you must configure the HBA.

For more information about supported QLogic models, see the following website:

https://datacentersupport.lenovo.com/

To configure the HBA BIOS, either use the QLogic HBA manager software or reboot into the Fast!UTIL tool. Configure the following settings:

Host Adapter BIOS: Disabled (unless the machine is configured for SAN Boot)
Adapter Hard Loop ID: Disabled
Connection Options: 1 - point to point only
LUNs Per Target: 0
Port Down Retry Count: 15

Set the execution throttle to a suitable queue depth for your environment, for example, a value of 100. For more information about the execution throttle and queue depth, see QLogic documentation.

If you are using subsystem device driver (SDD) 1.6 or later, set Enable Target Reset to No. See Registry key parameters for QLogic models to include the required parameters for the registry key.

Table 1. Registry key parameters for QLogic models
Key	Required parameters
HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Services > ql2`xxx` > Parameters > Device > DriverParameters	Buschange=0;FixupInquiry=1 Note: If you are using QLogic driver version 9.1.2.11 or later, Buschange cannot be set to zero. See your device driver documentation for details.