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Ibm os/2 – Asus P2B-D2 User Manual

Page 115

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ASUS P2B-D2 User’s Manual

115

IBM OS/2

General Unit Parameters:

/I -- Ignore the specified adapter. This allows another driver to share the adapters
that the ADD would normally use.

/DM -- Enable DASD manager support (DEFAULT). This parameter allows
OS2DASD.DMD to control the specified target(s) if they are identified as DASD
(hard disk) devices.

/!DM -- Disable DASD manager support. This parameter prevents
OS2DASD.DMD from controlling the specified target(s).

/SM -- Enable SCSI manager support (DEFAULT). This parameter allows
OS2SCSI.DMD to control the specified target(s) if they are identified as NON-
DASD SCSI devices. All SCSI hard drives will be controlled by
OS2DASD.DMD.

/!SM -- Disable SCSI manager support. This parameter prevents OS2SCSI.DMD
from controlling the specified target(s).

/TAG -- Specifies the maximum number of tagged commands for all target de-
vices on the host adapter (1-16).A value of 1 disables tagged queuing.The maxi-
mum number allowed is 16.(The default is 8.)

/UR -- Enables reporting of under runs (DEFAULT).

/!UR -- Disables reporting of under runs.

Configuration Examples:

Example 1:

Suppose that you had a removable hard drive as target 3 and you wanted to control
the hard drive with an ASPI application and driver. Normally OS2DASD will allo-
cate this device, treat it as a large floppy and prevent you from sending any SCSI
commands via ASPI.

The following command line will prevent OS2DASD.DMD from accessing the tar-
get and still allow OS2SCSI.DMD and OS2ASPI.DMD to share access to it.

BASEDEV=AIC78U2.ADD /A:0 /!DM:3

Example 2:

Suppose that you had a multi-disk CD-ROM as target 4 on host adapter 0 and two
DASD devices as targets 1 and 5 on host adapter 1. The following command line
will prevent OS2SCSI.DMD from accessing the CD-ROM and prevent
OS2DASD.DMD from controlling the DASD devices. The driver will also search
for multiple LUNs on all host adapters.

BASEDEV=AIC7870.ADD /ET /A:0 /!SM:4 /A:1 /!DM:1,5

IBM OS/2

B. AIC-7890

Driver