6 scsi command descriptions – Maxtor 10K V User Manual

Page 69

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Maxtor Atlas 10K V

5-11

5.6

SCSI COMMAND DESCRIPTIONS

The SCSI command descriptions that follow this page contain detailed information
about the SCSI commands that are supported by the drive. Each description provides
a Data Format and Field Descriptions for the Command Descriptor Block for the
described command.

The commands are presented in alphabetic order, and each command starts on a new,
odd-numbered page.

Common Fields
Several fields that are common to many commands are described here, rather than
being repeated throughout the descriptions. These fields include:

Reserved

– Reserved bits, fields, bytes, and code values are set aside for future

standardization and must be set to 0. If the drive receives a command that contains
non-0 bits in a reserved field or a reserved code value, the command is terminated with
a CHECK CONDITION status and the sense key set to ILLEGAL REQUEST.
However, there are some fields that are not checked for compatibility with older SCSI
initiators.

Control

– The Link Bit and Flag Bit are supported.

RelAdr

– Not supported; must be 0.

WRITE LONG

Byte Transfer

(must be 578)

• Data (512)
• LBA Tag (2)
• EDC (2)
• ECC (60)
• Fill (2)

--

WRITE SAME

0

Data (1 logical sector)

Command

Length in CDB

Data Out (To Drive)

Data In (To Initiator)

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