Q-Logic 2300 manual NumberOfRequests, FCTape, Double-click MaximumSGListREGDWORD0x21, 7.5.2, 7.5.3

7 – Windows XP Driver Installation	￿
System Registry Parameters

To change this value, follow these steps:

1.Click Start, select Run, and open the REGEDT32 program.

2.Select HKEY_LOCAL_MACHINE and follow the tree structure to the QL2300.SYS driver:

HKEY_LOCAL_MACHINE SYSTEM

CurrentControlSet Services

Ql2300

Parameters

Device

3.Double-clickMaximumSGList:REG_DWORD:0x21.

4.Enter a value from 16 to 255 (10h to FFh). A value of 255 (FFh) enables the maximum 1-MB transfer size. Any value above 255 enables

64K transfers. The default value is 33 (21h).

5.Click OK.

6.Exit the REGEDT32 program, then restart the system.

7.5.2

NumberOfRequests

The NumberOfRequests registry parameter specifies the maximum number of outstanding requests per adapter. When the QL2300.SYS driver is installed, the registry is automatically updated with this parameter set to 150 (96h).

CAUTION! Increasing this parameter above 150 can result in a system failure.

7.5.3

FCTape

Follow these steps to configure the QL2300.SYS driver to support FC tape:

1.Click Start, select Run, and open the REGEDT32 program.

2.Select HKEY_LOCAL_MACHINE and follow the tree structure to the QL2300.SYS driver:

HKEY_LOCAL_MACHINE SYSTEM

CurrentControlSet

Services

Ql2300

Parameters

Device

3.Double-clickDriverParameters:REG_SZ:MSCS=2;UseSameNN=1.

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