OS/2 MCS-700 Switches

/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).

/FS
Enable fast synchronous data transfers. This parameter applies to the FD16-700.ADD driver only. New SCSI devices are capable of higher speed data transfers. However, a TMC-1850 chip is required on your Future Domain adapter for these devices to operate properly.
   If all Future Domain adapters in your system contain the TMC-1850 chip, then this option will be set by default. However, if there is a mixture of adapters installed in your system containing TMC-1800 and TMC-1850 chips, then this option will be disabled by default.
   Specifying this parameter will enable fast synchronous data transfers for all adapters regardless of the level of chip present on the adapter. The negative form of this parameter (/!FS) can be used to disable fast synchronous data transfers for all adapters controlled by this driver.

/RD
Sets the maximum device recovery time after a SCSI Bus Reset.
   This delay allows devices to recover after resetting the SCSI bus so they are not missed when the ADD driver scans the
SCSI bus for installed devices.
   The default value is 2 seconds, which is adequate for the majority of SCSI devices. However, a device with a long recovery time such as some scanners, may benefit from a longer delay.

/A:n
Adapter number. Note: If multiple Future Domain adapters are present, the adapters are numbered as follows:
   o For TMC-16xx (ISA) and MCS-600/700 (MicroChannel) adapters: The lowest I/O port address is assigned adapter index 0. Port addresses are determined by the Reference Diskette on the MCS-600/700 series adapters.

/!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)

/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).

:unitlist
A list of unit identifiers that can have the format t for SCSI target ID or (t,l) for SCSI target ID and SCSI logical unit number.

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