Fujitsu D1919 Technical Manual page 36

Device Properties
If you move the screen horizontally, you can access the additional options like
SCSI Disconnect, SCSI Timeout and Queue Tags.
MT/sec, Fast SCSI devices, including the U320-SCSI controller, are capable of
MB/sec transferring data to and from the SCSI bus at speeds ranging up to 320
Mbyte/s at synchronous data transfer. The configurable maximum data
transfer rate is 160 Mega Transfers/secs, that means 320 Mbyte/s.
Data Width This option determines whether the SCSI controller attempts 16-bit data
transfer (Wide negotiation) instead of 8-bit data transfer. As a result two
byte are transferred simultaneously via the SCSI bus instead of one byte.
Scan ID
With this setting it can be determined for every SCSI address on this
SCSI bus, whether the SCSI BIOS while initializating checks or not that
a SCSI device with this special address is connected to the bus.
The default setting is Yes, i.e. the corresponding SCSI address is
checked.
Scan LUNs This option determines whether a SCSI device has multiple LUNs (Logi-
>0 cal Unit Numbers).
The default setting is
32
SCSI/IME configuration program
(disabled).
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