Hitachi HUS154530VLF400 User Manual

                   

Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification

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The Control Byte is the last byte of every CDB. The format of this byte is shown below.

  VU stands for Vendor Unique. 

 

If Link is zero, Flag must also be zero. If Link is one, Flag may also be one. Typically this bit is used to cause an 
interrupt in the Initiator between linked commands. 

 

This bit is set to one to indicate that the Initiator desires an automatic link to the next command upon successful com-
pletion of the current command. 

Note: * - The drive ignores the link bit and flag bit in the CDB. 

These abbreviations are used throughout the following sections: 

Logical Unit Number. An encoded three bit identifier for the logical unit. 

Vendor Unique bits

Logical Block Address 

Reserved

Most Significant Byte 

Least Significant Byte

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.