User's Manual

DLT2000 SCSI Interface
DLT2000/DLT2700 Cartridge Tape Subsystem 8-59
Data Transfer Disconnect Control (DTDC)
The DTDC field defines further restrictions on when a disconnect is permitted.
DTDC Description
00b Data transfer disconnect control is not used. Disconnect is controlled by
the other fields in this page
01b A target does not attempt to disconnect once the data transfer of a
command has started until all data the command is to transfer has been
transferred.
10b Reserved
11b A target does not attempt to disconnect once the data transfer of a
command has started, until the command is complete.
Figure 8-36 Data Transfer Disconnect Control
If DTDC is non-zero and the maximum burst size is non-zero, the DLT2000 returns
CHECK CONDITION status. The sense key is set to ILLEGAL REQUEST and the
additional sense code set to ILLEGAL FIELD IN PARAMETER LIST.