Chapter 5 SCSI Drive Installation 93
Command Line Options
The NCRSDMS3.DSK and NCRSDMS4.DSK drivers have many
timing parameters. (At this time there are no command line
options for the ASPICAM3.NLM or ASPICAM4.NLM drivers.)
Following is a list of timingg parameters available, including the
default option and a list of valid options. Following each parame-
ter is a description of when a parameter should be used and any
impact its use/disuse might incur.
Please note applicable versions listed for each option.
Note:
If an option is specified but the assignment is not valid,
then the default value will be used. The
NCRSDMS3.DSK and NCRSDMS4.DSK drivers will be
referred to in the remainder of this section as
NCRSDMSX.DSK, where X refers to the appropriate
NetWare operating system Version.
Using the Tag Command Queuing Option
Command line option:
qtags=<option>
Default value:
disable
Valid options:
enable, disable
Function:
Enable/disable tag command queuing
for the devices
Possible Impact:
Tagged commands may result in
improved I/O throughput in devices that
support such an option.
Applicable Versions:
3.02.06 and higher
Enabling the option results in the driver issuing tagged command
requests to the devices that support tagged queuing. Devices that
do not support tagged queuing are not issued tagged requests.
Depending on the drive controller, throughput of the device may
be increased by the use of queue tags, although a optional number
of queue tags is based on the specific device type.
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