User's Manual

DLT2000 SCSI Interface
8-92 DLT2000/DLT2700 Cartridge Tape Subsystem
8.4.13 READ BLOCK LIMITS (05h)
Bit
76543210
0 Operation Code (05h)
Logical Unit Number Reserved
Reserved
Byte
Unused Flag Link
1
Reserved
2
Reserved
3
Reserved
4
5
Figure 8-58 READ BLOCK LIMITS CDB
READ BLOCK LIMITS tells the drive to return its limits for block length. The READ
BLOCK LIMITS data shown below is sent during the DATA IN phase of the
command. The command does not reflect the currently selected block size, only the
available limits. MODE SENSE returns the current block size.
Bit
76543210
0 Reserved
(MSB)
Maximum block length
Byte (LSB)
Minimum block length (0001h)
1
(MSB)
(LSB)
2
3
4
5
Figure 8-59 READ BLOCK LIMITS Data
Maximum Block Length
This field indicates the maximum block size. The device supports a maximum block
length of 16,777,215 bytes (16 MB-1) for the 10 GB format. A maximum block length
of 256 K bytes is supported for 2.6 GB or 6.0 GB formats.
Minimum Block Size
This field indicates the minimum block size. The device supports a minimum block
length of 1 byte.