Owner`s manual

Page 6-3Setting up Your System
operate in non-synchronous mode only by entering a /N at the end of the command
line. For example:
SCZDSP SCZ190.SYS/N
The SCZR60 dispatcher accepts several switches:
Switch Meaning
/EW{:id#} Enable wide SCSI operation for all devices or for just the
device at SCSI ID
id# .
/NQ{:id#} Disable command queueing for all devices or for just the
device at SCSI ID
id# .
/NS{:id#} Disable synchronous negotiation for all devices or for just the
device at SCSI ID
id# . This is the same as the /N switch for
the SCZRR and SCZ190 dispatchers, with the addition of the
device number option.
/NP Disable parity checking for all devices. Parity is still
generated. This option always affects all devices on the bus;
you cannot specify a device ID.
The most common of these switches is /EW, to enable wide SCSI operation when using
the optional wide SCSI bus. For example, if you have a wide SCSI disk drive at ID 0 of
the wide bus, and non-wide devices at other IDs, enter this statement to enable wide
SCSI operation for just that drive:
SCZDSP SCZR60/EW:0
If you have both wide and narrow SCSI devices attached to the wide bus, enable wide
SCSI operation
only for the wide devices. Use /EW without a device ID (to enable wide
operation for the entire bus) only if all devices on the bus, both disk and tape drives, are
wide SCSI devices.
Do not use the /EW switch with the narrow SCSI bus, even if you have wide SCSI
devices attached to the bus using the appropriate adapters.
System Operator’s Guide to the System Initialization Command File, Rev. 03