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7 – Windows XP Driver Installation
System Registry Parameters
FC2354601-00 A 7-5
Follow these steps to complete the driver installation:
1. When the Digital Signature Not Found dialog box displays, click Yes.
2. When the Insert Disk message displays, insert the QLogic disk created in
section 7.2 into drive A. Click OK.
3. In the Found New Hardware Wizard/Completing the Found New
Hardware Wizard dialog box, click Finish.
4. The following message displays:
Your hardware settings have changed. You must restart
your computer for these changes to take effect.
Do you want to restart your computer now?
Click Yes.
7.4
Removing the Driver
To uninstall the QLA23xx HBA, power down your computer and remove the HBA
from your computer according to the manufacturer’s instructions.
NOTE: You do not have to use the Device Manager or the Hardware Wizard to
uninstall the QLA23xx HBA. After you have removed the HBA and restarted
your computer, Windows XP recognizes that the HBA has been removed.
7.5
System Registry Parameters
The available driver parameters are listed below and described in the following
sections:
■ MaximumSGList
■ NumberOfRequests
■ FCTape
■ UseSameNN
7.5.1
MaximumSGList
Windows XP includes enhanced scatter/gather list support for doing large SCSI I/O
transfers. Windows XP supports up to 256 scatter/gather segments of 4096 bytes
each, allowing transfers up to 1048576 bytes.
NOTE: OEMSETUP.INF automatically updates the registry to support
33 scatter/gather segments. This setting provides the best overall
performance.