Each driver has its own "key" reference. In this example, the Ultra320 key is
used (adpu320). To enter driver-specific parameters, follow these steps:
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\
If the \Parameters\Device\ keys already exist, skip to step 6 below 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. Select the Add Key from the Edit menu; Type
"Parameters" in the Key Name edit box. Leave the Class edit box blank.
5) Click on the Parameters key. Select the Add Key from the Edit menu; Type
"Device" in the Key Name edit box. Leave the Class edit box blank. To specify a
certain host adapter, append Device with the number of the host adapter. For
example, type "Device0" for the first host adapter, "Device1" for the second,
etc. If you omit the host adapter number, the configuration information applies
to all supported host adapters.
6) Click on the Device key. Select Add Value from the Edit menu; type
"DriverParameters" in the Value Name edit box. Enter the Data Type and press
Enter. A String Editor text box appears.
Enter valid parameters in the text box. When entering multiple parameters, each
parameter must be separated by a space. To enter additional values, repeat step
6.
Note: Changes made with the Registry Editor do not take effect until you shut
down and then restart your system.
----------------------------------------------------------------
Option: /MAXTAGS=[value]
Definition: Specifies a tagged command queue depth per
target.
Data Type: REG_SZ
Possible Values: 1-255
Default Value: 32
----------------------------------------------------------------
Option: /INSTRUMENTATION
Definition: Enables instrumentation support in the driver.
Data Type: REG_SZ
Possible Values: N/A
Default Value: N/A
----------------------------------------------------------------
Option: /INSTR_ERRLOG_Z=[value]
Definition: Specifies the length of the instrumentation
error log.
Data Type: REG_SZ
Possible Values: 0-127
Default Value: 32
----------------------------------------------------------------
Option: /RDSTRM
Definition: Enables read streaming to be negotiated for all
drives.
Data Type: REG_SZ
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