User's Manual

DLT2000 SCSI Interface
DLT2000/DLT2700 Cartridge Tape Subsystem 8-49
•= 80h - 62500 bpi, 64 track pairs, serial cart tape - 10 GB (CompacTape III)
(Without compression)
•= 81h - 62500 bpi, 64 track pairs, serial cart tape -20 GB (CompacTape III) (With
compression)
_________________________ Note _____________________________
1. If EEROM parameter EnaThirdPtyDens is set, which is true by
default, Mode Select command does not reject non-supported
density code. The third party density code Selected is translated into
default density code (i.e. 00h)
2. Default density is the optimum density supported by the specific
media. For CompacTape III, it is 20 GB (with compression).
___________________________________________________________
Number of Blocks
This MODE SENSE field will be sent as zero, indicating that all of the remaining
logical blocks on the tape will have the medium characteristics specified by the block
descriptor.
Block Length
This specifies the length in bytes of each logical block transferred over the SCSI bus. A
block length of zero indicates that the length is variable (specified in the I/O command).
Any other value indicates the number of bytes per block to use for read, write and
verify type commands that specify a "Fixed" bit of 1 (i.e., fixed block mode) which also
causes the transfer length in the CDB to be defined as a block count.