Adaptec 29320A-R User Guide - Page 166

MaximumLogicalUnit, MaximumSGList, NumberOfRequests, Enter, adpu320, Add Key, Parameters, Device

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Using Windows Advanced Configuration Parameters s MaximumLogicalUnit-This can limit the scan for connected devices on the SCSI bus. Valid values are 0 to 32. If 1 is specified, the Windows SCSI manager assumes that no SCSI targets support LUNs other than LUN 0. Otherwise, LUNs from 0 to 31 are scanned during system initialization. The data type for this value is REG_DWORD. s MaximumSGList-Specifies the maximum number of Scatter/ Gather elements. Valid values are 2-255. The data type for this value is REG_DWORD. s NumberOfRequests-specifies the maximum number of commands that can be delivered to an adapter. Valid values are 16-255. The data type for this value is REG_DWORD. To enter Windows 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 If the Parameters\Device keys already exist, skip to Step 8 to begin entering values. If the keys do not yet exist, you need to create them by continuing with Step 4. 4 Click on the adpu320 key. 5 Select Add Key from the Edit menu; type Parameters in the Key Name edit box. Leave the Class edit box blank. 6 Click on the Parameters key. 7 Select 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, and so on. If you omit the host adapter number, the configuration information applies to all Ultra320 host adapters. 8 Click on the Device key. C-3

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C-3
Using Windows Advanced Configuration Parameters
■
MaximumLogicalUnit
—
This can limit the scan for connected
devices on the SCSI bus. Valid values are 0 to 32. If 1 is specified,
the Windows SCSI manager assumes that no SCSI targets
support LUNs other than LUN 0. Otherwise, LUNs from 0 to 31
are scanned during system initialization. The data type for this
value is
REG_DWORD
.
■
MaximumSGList
—
Specifies the maximum number of Scatter/
Gather elements. Valid values are 2-255. The data type for this
value is
REG_DWORD
.
■
NumberOfRequests
—
specifies the maximum number of
commands that can be delivered to an adapter. Valid values are
16-255. The data type for this value is
REG_DWORD
.
To enter Windows 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
If the Parameters\Device keys already exist, skip to Step 8 to
begin entering values. If the keys do not yet exist, you need to
create them by continuing with Step 4.
4
Click on the
adpu320
key.
5
Select
Add Key
from the Edit menu; type
Parameters
in the
Key Name edit box. Leave the Class edit box blank.
6
Click on the
Parameters
key.
7
Select
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, and so on. If you
omit the host adapter number, the configuration information
applies to all Ultra320 host adapters.
8
Click on the
Device
key.