Maximizing performance in windows, Use the latest driver, Set registry for large block transfers – HP PCIe U320 SCSI Host Bus Adapter User Manual
Page 37: Messages from flash tab actions
Table 7 Messages from Flash tab actions
Error message
Solution
This is not a flash file, or it is
corrupt.
The flash file is corrupt or the Configuration Tool does not recognize the file
as a flash file. Only select flash files from the product CD or downloaded
from the HP website.
This HBA is not compatible
with the selected flash file.
ATTO flash files are created based on the type of card flashed. ATTO flash
files are only compatible with certain ATTO cards. When a flash file is
selected, the flash file is inspected to determine whether it is compatible.
A valid file was not selected.
You clicked the Cancel button on the flash file selection dialog.
An error occurred reading
from the flash file, the file may
be corrupt.
You selected a compatible flash file but the contents are corrupt.
An error occurred updating
the flash.
You tried to flash a card when the firmware was not able to accept a flash.
The card has been prepared
for firmware updating, but the
machine must be rebooted for
the changes to take effect. You
need to repeat this process
after rebooting to actually
update the firmware.
Some firmware upgrades need to prepare the existing firmware to
successfully update the adapter. Rebooting allows the changes made
during the preparation process to take effect, and the same file should be
flashed again.
Maximizing performance in Windows
If you are experiencing lower performance than expected, there are several things you can do to increase
performance, such as making sure you are using the latest driver, setting the registry entry for large block
transfers, setting up RAID groups, increasing transfer size, and analyzing your system's I/Os.
While the factory settings on the HP StorageWorks U320e SCSI Host Bus Adapter should provide
excellent performance for a wide range of applications, you may improve performance by modifying
some of the system factors that affect the adapter. For example, the driver can transfer well over a
megabyte with one SCSI command.
Use the latest driver
Determine which driver is currently in use, then install the latest driver found at
1.
Using the Windows Device Manager, select SCSI & RAID Controllers.
2.
Examine the Driver tab for your SCSI adapter. If the driver is not express2.sys, install the
express2.sys
driver.
3.
Either remove the previously-installed driver or disable it using the Devices applet. If the system has a
built in Symbios or LSI adapter, do not disable the driver for that adapter.
Set registry for large block transfers
If your application requires large block transfers, set the registry entry correctly for the MaximumSGList
keyword. Several files supplied with the device driver download package can set values in the range 64K
to 8M. The files are ASCII text files with .reg extension and can be viewed with any suitable editor. The
files also explain the registry setting and how to change the setting.
User guide
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