Technical information

HGST Ultrastar C15K600 Hard Disk Drive Specification
88
18.1
SCSI Control Byte
The Control Byte is the last byte of every CDB. The format of this byte is shown below.
VU = VU stands for Vendor Unique.
Table 59 SCSI Control Byte
Bit
7
6
5
4
3
2
1
0
VU = 0
Reserved = 0
Note: * - The drive ignores the link bit and flag bit in the CDB.
18.2
Abbreviations
These abbreviations are used throughout the following sections:
LUN
Logical Unit Number. An encoded three bit identifier for the logical unit.
VU
Vendor Unique bits
LBA
Logical Block Address
RSVD
Reserved
MSB
Most Significant Byte
LSB
Least Significant Byte
18.3
Byte Ordering Conventions
In this specification, where it is not explicitly stated, all multi-byte values are stored with the most significant byte first.
For example, in a 4 byte field, byte 0 will contain the MSB and byte 3 the LSB.