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5 – Windows NT Driver Installation
QLDIRECT
FC2354601-00 A 5-3
5.3.3
Updating the Windows NT Driver
Perform the following steps if a Windows NT driver is already installed on a Fibre
Channel hard disk attached to a QLA23xx HBA and you want to install an updated
version of the driver.
NOTE: This procedure does not modify the current registry parameters for the
QLA2300 Windows NT driver.
1. Open a DOS command prompt window.
2. Change the current directory to the Windows NT driver directory. For
example:
cd \Winnt\System32\Drivers
3. Make a backup copy of the old driver. You can copy the file into the same
directory with a .SAV extension indicating that it is the saved file. For
example:
copy Ql2300.sys Ql2300.sav
4. Insert the disk that contains the updated QLogic driver in an appropriate
drive.
5. Copy the new driver over the old driver. For example:
copy A:\Nt\Ql2300.sys
6. Remove the disk that contains the QLogic driver.
7. Restart your system to load the updated driver.
5.4
QLDIRECT
The QLDIRECT driver, coupled with the QLogic Windows NT enhanced miniport
driver, provides the following features:
■ A highly optimized I/O path for normal read and write operations with reduced
CPU utilization and increased parallelization
■ Failover and failback features to reroute I/O operations to the correct path
This section provides installation instructions for the QLDIRECT driver in an already
installed Windows NT 4.0 operating system. Earlier versions of this operating
system are not supported.