Using The Load Command Line Options; Table 3-3. Load Command Line Options - Dell PowerEdge 4200 Series User Manual

Using the load Command Line Options

You can specify several command line options when the
driver is loaded. These are described in Table 3-3.
Option Values
slot= 10-41, 100-141,
and so forth
verbose= y, n
removable= on, off
fixed_disk= on, off
dev_enable=
00-FF
lun_enable=
00-FF
tag_disable
00-FF
io_combine 0-255
max_sectors 0-255
max_tags 0-255
max_nontags 0-255
read_after_ 0, 1, 2
write
instrumen- 0, 1
tation
* On the AIC-7880 and optional AHA-2940W, these values become FFFF.
NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary.

Table 3-3. load Command Line Options

Default
None
n
on
on
* FF
01
*
* 00
16
64
8
2
2
0
Description
Defines host adapter device location. If none is given, you are
prompted to specify one.
Causes driver to display host adapter configuration information at
load time.
Enables support for removable media. By default, removable media is
supported. You may want to disable removable disk support to load
an ASPI removable disk module.
Enables support for hard-disk drives. By default, hard-disk drives are
supported. You may want to disable fixed disk support to load an
ASPI fixed disk module.
Allows you to enable the driver's registration of SCSI devices on a
per-target basis. This enable bit mask is entered in hexadecimal
format. (See the following subsection, "Bit Mask Options.")
Enables scanning for specific LUNs on all targets. (See the following
subsection, "Bit Mask Options," for details on creating bit masks.) For
example, a value of 7 causes the driver to scan for LUNs 0, 1, and 2 on all
targets. The default value of 01 causes the driver to scan LUN 0 only.
Disables tagged queuing for specific targets. This disable bit mask is
entered in hexadecimal format. (See the following subsection, "Bit
Mask Options.")
Specifies the maximum number of segments in a scatter/gather list.
Specifies the maximum number of sectors in a single scatter/gather
segment.
Specifies the maximum number of tagged commands.
Specifies the maximum number of nontagged commands.
Specifies the default verify mode: 0 = No verify on writes, 1 = Soft-
ware verify, 2 = Hardware verify.
If 1 is entered, the instrumentation option is enabled. The driver main-
tains internal instrumentation data for use by I/O management applica-
tions. Instrumentation can also be enabled by the I/O management
application, so inclusion of this option is not necessary.
Installing and Configuring SCSI Drivers 3-15