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DLT4000 SCSI Interface
8-14 DLT4000/DLT4500/DLT4700 Cartridge Tape Subsystem
8.4 Tape Drive SCSI Commands
8.4.1 Control Byte - Flag and Link Bits
The control byte of the Command Descriptor Block contains the Flag and Link bits.
Use of these bits is entirely initiator dependent. Setting the Link bit provides an
automatic link to the next command, bypassing the usual ARBITRATION,
SELECTION, and MESSAGE OUT phases which would normally occur between
commands.
All other bits in the Control Byte are considered to be reserved.