Adaptec 29320A-R User Guide - Page 165

Using Windows SCSI Parameters - 31

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Adaptec Ultra320 SCSI Cards User's Guide The following is a table of supported Windows Registry Settings. Option Name /MAXTAGS=nnn /INSTR_ERRLOG_Z=nnn MaximumSGList MaximumLogicalUnit NumberOfRequests Default Value 32 32 65 32 255 Acceptable Values Definition 1-255 Specifies tagged command queue depth per target. 0-127 Specifies the length of the instrumentation error log. 2-255 Sets the maximum transfer size for an individual command. 0-31 Limits the scan for connected devices on the SCSI bus. 16-255 Specifies the maximum number of commands that can be delivered to an adapter. Using Windows SCSI Parameters Follow the instructions below to enter the registry values that affect how the Windows SCSI manager interprets the generic configuration information of SCSI device drivers. Each driver has its own key reference in the Registry. In this example, the Ultra320 key is used (adpu320). All SCSI host adapters supported by the modified key are affected by the values you enter here. A list of valid values follows: Note: The following value keys are case-sensitive and must be entered exactly as shown. C-2

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C-2
Adaptec Ultra320 SCSI Cards User
’
s Guide
The following is a table of supported Windows Registry Settings.
Using Windows SCSI Parameters
Follow the instructions below to enter the registry values that affect
how the Windows SCSI manager interprets the generic
configuration information of SCSI device drivers. Each driver has
its own key reference in the Registry. In this example, the Ultra320
key is used (
adpu320
). All SCSI host adapters supported by the
modified key are affected by the values you enter here. A list of
valid values follows:
Note:
The following value keys are case-sensitive and must be
entered exactly as shown.
Option Name
Default
Value
Acceptable
Values
Definition
/MAXTAGS=
nnn
32
1-255
Specifies tagged
command queue
depth per target.
/INSTR_ERRLOG_Z=
nnn
32
0-127
Specifies the length
of the
instrumentation
error log.
MaximumSGList
65
2-255
Sets the maximum
transfer size for an
individual
command.
MaximumLogicalUnit
32
0-31
Limits the scan for
connected devices
on the SCSI bus.
NumberOfRequests
255
16-255
Specifies the
maximum number
of commands that
can be delivered to
an adapter.