Viper 60s Theory Of Operation And Maintenance Manual page 109

VIPER SCSI COMMANDS
5.19.7.2 SEQ to D/A Segment Descriptor Field Descriptions
Drive
o
SCSIID
Destination
SCSIID
Destination
i
LUN
D/A Device 4 to 7
Number of
Blocks
D/A Device 8 to 11
Address
5.19.8 SEQ to SEQ Segment Descriptor
In
a Segment Descriptor for COPY Function Code 03h, the managing Viper drive may be
either the source or destination device. The LUN associated with a Viper drive must always
have value 0, referencing the controller's single drive. The Block Length associated with a
Viper drive must always have a value of 512 (200h), according to the Viper drive recording
format.
In the case where the remote device block size is 256, the 24-bit count in Source Number of
Blocks must be an even number.
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