OS/2 Switches for the AHA-1640

/ET
   Search SCSI devices for Logical Units (LUNs).  If any attached SCSI devices support multiple logical units (LUNs), then this parameter should be set. Certain CD-ROM drives that handle multiple CD-ROMs require this parameter. The default setting (/!ET) assumes each SCSI device has only one logical unit (LUN 0).

/V
Verbose.  Displays Adaptec ADD driver version number.

/A:n
Adapter number.  The number of the adapter to which the following parameters will apply.
If multiple AHA-1640 adapters are present, the adapters are numbered as follows:

  •       AHA-1640 adapters with their BIOS enabled are detected first.
  •       AHA-1640 adapters with their BIOS disabled are detected second.  In both cases adapters are ordered

    •                by their Micro Channel slot address from lowest to highest.
  •      Adapter numbers start at 0.


    • /!DM
       Disable DASD Manager support.  The OS2DASD.DMD will manage any SCSI device that indicates it is a removable or
    fixed magnetic disk.
       In some cases, a device supplier may provide a specific driver written to either IBM SCSI.SYS or Adaptec ASPI interfaces. SCSI devices may be listed in single digits as SCSI device numbers, or as pairs of numbers indicating a SCSI device number and logical unit number.  In these cases, this parameter might be used to disable the OS/2 DASD Manager from claiming the device.

    :unitlist
    List of unit identifiers with the format t for SCSI target ID or (t,l) for SCSI target ID and SCSI logical unit number.

    For example: /!DM:4,3,(2,1)

    /!SM
     Disable SCSI Manager support.  Prevents OS2SCSI.DMD from reporting that SCSI devices listed are available for allocation to drivers written to IBM SCSI.SYS interfaces.  SCSI devices might be listed in single digits as SCSI device
    numbers, or as pairs of numbers indicating a SCSI device number and logical unit number.

    :unitlist
    List of unit identifiers with the format t for SCSI target ID or (t,l) for SCSI target ID and SCSI logical unit number.

    For example: /!SM,6,4,(2,0)

    /UR
    Controls the reporting of adapter detected overruns.
       Normally, an underrun or overrun condition (for example, receiving more or less data than expected) is detected by a SCSI device. This parameter is provided for compatibility with some tape software packages.  Users should consult the tape software vendor for specific instructions. The default setting is that the adapter detected overruns and underruns are not reported.

    /I
    Ignore adapter. The adapter number indicated by the /A:n parameter will be ignored by this .ADD driver.
       This parameter is used with special purpose device driver packages that manage an adapter independently from the .ADD drivers shipped as part of the OS/2 product. Refer to documentation supplied with the software package you are installing for further information.