Quantum 10K II User Manual

Page 85

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SCSI Description

5–18

Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives

Table 5–5 DATA-Phase Command Contents

Length

Data Out

Data In

Command

in CDB

(To Drive)

(To Initiator)

CHANGE DEFINITION

0

---

---

FORMAT UNIT

0

Defect List Header (4)

---

Initialization Pattern (6-8)
Defect Descriptors

INQUIRY

Allocation

---

Standard Inquiry or a
Vital Product Data page

LOG SELECT

Parameter List

---

---

(must be 0)

LOG SENSE

Allocation

---

Log Page

MODE SELECT

Parameter List Mode Parameter Header (4)

---

Block Descriptor (8)
Page(s)

MODE SENSE

Allocation

---

Block Descriptor (8)

PERSIST. RES. IN
PERSIST. RES. OUT
READ (6) (10)

Transfer

---

Data

READ BUFFER

Allocation

---

READ BUFFER Header (4)
Mode-zero Buffer (512) or

Section of Drive’s DRAM or
READ BUFFER Desc. (4)

READ CAPACITY

Allocation

---

READ CAPACITY data (8)

READ DEFECT DATA

Allocation

---

• Defect List (Hdr) (4)
• Defect Descriptors

READ LONG

Byte Transfer

---

• Data (512)

(Must be 560)

• LBA Tag (2)
• EDC (2)
• ECC (44)

READ SKIP MASK
REASSIGN BLOCKS

0

Defect List Header(4)

Defect Descriptors

RECEIVE

Allocation

---

Diagnostic Page

DIAGNOSTIC RESULTS

• ECC (25)

RELEASE

0

---

---

REPORT DEVICE
IDENTIFIER
REQUEST SENSE

Allocation

---

Sense Data (18)

RESERVE

0

---

---

(Extent List
Option not
supported)

REZERO UNIT

0

---

---

(continued)

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