User's Manual

DLT2000 SCSI Interface

8-120 DLT2000/DLT2700 Cartridge Tape Subsystem

8.4.22 SPACE (11h)

Bit

76543210

0 Operation Code (11h)

Logical Unit Number Code

(MSB)

Byte Count

(LSB)

Unused Link

Reserved1

FlagReserved

Figure 8-75 SPACE CDB

SPACE provides a variety of positioning functions that are determined by Code and

Count fields in the Command Descriptor Block. Both forward (toward EOM/P) and

reverse (toward BOM/P) positioning are provided.

Code

The code is defined as follows:

Space Code Space by:

000b Blocks

001b Filemarks

010b Sequential Filemarks

011b End-of-Data

Figure 8-76 SPACE Code Definition

For 2.6 and 6.0 GB format, the drive supports count values 0, 1, and 2 only. For 10.0

GB format, compress or noncompress, the count value can be from 0 to FFFFFFh.