User's Guide

5-7
Installing Windows NT 4.0
Using Driver-specific Parameters
To use the Registry Editor to enter adpu320m.sys driver-specific
parameters that affect the configuration information for Adaptec
SCSI PCI device drivers, follow the instructions below. A list of
valid parameters follows:
Note: The following parameters are case-sensitive and must be
entered exactly as shown. When entering multiple
parameters, each parameter must be separated by a space.
■ /INSTRUMENTATION—enables recording of I/O statistics
and errors. If this option is not specified, instrumentation
defaults to disabled. The data type for this value is
REG_SZ.
■ /INSTR_ERRLOG_Z=nnn—sets the maximum number of error
log entries, if /INSTRUMENTATION is enabled. If a number is
not specified, the maximum number or error log entries
defaults to 32. Valid values are 0-128. The data type for this
value is
REG_SZ.
■ /MAXTAGS=nnn—specifies the tagged command queue
depth. If a number is not specified, the tagged queue depth
defaults to 128. Valid values are 1-255. The data type for this
value is
REG_SZ.
■ /HOTPLUG —enables Hot-Plug PCI feature. If this option is
not specified, Hot-Plug PCI feature defaults to disabled.
To enter driver-specific parameters:
1 Select Run from the Start button.
2 Type regedt32 and press Enter.
3 Open the registry list to the following location:
\HKEY_LOCAL_MACHINE\System\CurrentControlSet\
Services\adpu320\Parameters\Device\DriverParameters
If the Parameters/Device and Driver Parameters keys already
exist, skip to Step 10 to begin entering parameters. If the keys do
not yet exist, you will need to create them by continuing with
Step 4.
4 Click on the adpu320 key.
ASC-39320D UG.book Page 7 Monday, July 22, 2002 1:42 PM