Page 1 Quantum Atlas 10K II 9.2/18.4/36.7/73.4 GB Ultra 160/m S Product Manual June 8, 2000 81-122517-04...
Page 2 No part of this product or document may be reproduced in any form by any means without prior written authorization of Quantum and its licensors, if any. RESTRICTED RIGHTS LEGEND: Use, duplication, or disclosure by the government is subject to restrictions as set forth in subparagraphs (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013 and FAR 52.227-19.
Page 3: Table Of Contents
3.5.2 Atlas 10K II Ultra 160/m SCSI Disk Drive with 80-Pin, SCA-2 SCSI Connector........3-18 3.6 DRIVE MOUNTING AND INSTALLATION......................3-20 3.6.1 Orientation..............................3-20 3.6.2 Mounting Screw Clearance........................3-21 3.6.3 Shock Clip..............................3-23 3.6.4 Mounting ..............................3-23 3.6.5 Ventilation..............................3-23 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 4 5.10.2.2 FORMAT UNIT Defect Descriptor – Block Format................5-29 5.10.2.3 FORMAT UNIT Defect Descriptor – Physical Sector and Byte From Index Format ......5-30 5.10.2.4 FORMAT UNIT Initialization Pattern Descriptor..................5-31 5.11 INQUIRY Command (12h)..........................5-33 5.11.1 Standard Inquiry Data Page........................5-35 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 5 5.24 READ DEFECT DATA (10) Command (37h)....................5-143 5.25 READ DEFECT DATA (12) Command (B7h)....................5-147 5.26 READ LONG Command (3Eh)........................5-151 5.27 READ SKIP MASK Command (E8h)....................... 5-153 5.28 REASSIGN BLOCKS Command (07h) ......................5-155 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 6 6.5 Disconnect-Reconnect............................6-3 6.6 Track and Cylinder Skewing ..........................6-3 6.7 Average Access Time.............................6-3 6.8 Embedded Servo System ............................6-4 6.9 Data Integrity and Security ...........................6-4 6.9.1 Media Error Protection...........................6-4 6.9.2 Transfer Error Protection..........................6-4 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 7 B.5.5.3 Wide Data Transfer .........................B-21 B.5.5.4 Signal Restrictions Between Phases .....................B-21 B.5.5.5 Message Out – Attention Conditions ..................B-21 B.6 SCSI Bus Conditions.............................B-23 B.6.1 Attention Condition ..........................B-23 B.6.2 Reset Condition ............................B-24 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 8 Contents B.7 SCSI Message Format ............................B-26 viii Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 9 B.8.24 PARALLEL PROTOCOL REQUEST Message (04h)..................B-40 Appendix C NEGOTIATED RATE INFORMATION PAGE REFERENCE C.1 TRANSFER PERIOD FACTOR FIELD........................C-1 C.2 SETTINGS FOR THE QAS, DT, AND IU FIELDS ....................C-2 INDEX..........................I-1 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 10 Contents Figures 3-1 Mechanical Dimensions for the 68-pin Wide SCSI Quantum Atlas 10K II Ultra 160/m Hard Disk Drive (9.1/18.2 GB Models)............................3-3 3-2 Mechanical Dimensions for the 80-pin SCA-2 Quantum Atlas 10K II Ultra 160/m Hard Disk Drive (9.1/18.2 GB Models)............................3-4 3-3 Drive Packing Assembly............................3-5...
Page 11 Contents 5-35 XOR Control Mode Page — Data Format....................5-82 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 12 ILLEGAL REQUEST Sense Key Field Pointer Bytes — Data Format.......... 5-189 5-87 NOT READY Sense Key - Progress Indication Bytes — Data Format........5-189 5-88 MEDIUM ERROR or RECOVERED ERROR Sense Key - Retry Count — Data Format........................... 5-190 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 13 IDENTIFY Message – Data Format....................B-31 Queue Tag Message – Data Format ....................B-34 SYNCHRONOUS DATA TRANSFER – Data Format................B-36 WIDE DATA TRANSFER REQUEST Message – Data Format............B-38 PARALLEL PROTOCOL REQUEST Message – Data Format............B-40 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives xiii...
Page 14 Read-Write Error Recovery Page — Field Descriptions ...............5-66 5-34 Disconnect-Reconnect Page — Field Descriptions ..............5-69 5-35 Verify Error Recovery Page — Field Descriptions ................5-72 5-36 Caching Page — Field Descriptions....................5-74 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 15 Contents Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 16 READ LONG Command Descriptor Block — Field Descriptions..........5-151 5-72 READ SKIP MASK — Field Description ..................5-153 5-73 REASSIGN BLOCKS Defect List Header — Field Descriptions..........5-155 5-74 Diagnostic Pages Supported by the Drives................5-157 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 17 XPWRITE (10) Command — Field Descriptions................ 5-233 SCSI-2/SCSI-3 Equivalent Terminology....................A-1 SCSI-3 Quick Reference – Commands and Messages..............A-2 SCSI-3 Quick Reference – Pages.......................A-4 SCSI-3 Quick Reference – Sense Keys....................A-5 SCSI-3 Quick Reference – Status Codes ..................A-5 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives xvii...
Page 18 Transfer Period Factor Field Values When PARL = 1 ..............C-1 Transfer Period Factor Field Values When PARL = 0 ..............C-2 Settings for the QAS, DT, and IU Fields of the Negotiated Rate Information Page (INQUIRY Command) ............................C-2 xviii Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 19 Contents Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 20: Revision Record
Rate, User Data Rate, Average Access to Data, Command Overhead, ECMA seek rate statements. Chapter 5: INQUIRY section, added information for the Negotiated Rate Information Page. Added Appendix (continued) Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives xvii...
Page 21 (Section 4.5.3.5), acoustics (Section 4.6), and Table 4- Chapter 5: Change to ARRE definition (Table 5-33), Reall.Uncorr.Errors definition (Table 5-43). Addition of information for starting AIP following Table 5-43. xviii Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 22: Chapter 1 About This Manual
In addition, the following abbreviations may be used in this manual: ASIC application-specific integrated circuit bits per inch decibels decibels, A weighted error correcting code flux changes per inch Gbit gigabit gigabyte hertz kilobytes least significant bit Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 23 Computer Voice: This refers to any items that the user types at a computer keyboard. These items appear in this manual, if applicable, in 10-point, all capitals, Courier New font. An example is FORMAT. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 24: References
For additional information about the SCSI Interface, refer to: ANSI Small Computer System Interface-2 (SCSI-2) Specification, ANSI X3T9.2/86-109, Revision 10K II. ANSI Small Computer System Interface-3 (SCSI-3) Specification, ANSI X3T10/August, 1994. SPI-2 Specification Revision 18. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 25 About This Manual Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 26: Chapter 2 General Description
PRODUCT OVERVIEW Quantum Atlas 10K II Ultra 160/m SCSI hard disk drives are part of a family of high performance, 1-inch high (low profile) and 1.6-inch high (half-height) hard disk drives manufactured to meet the highest product quality standards. The disk...
Page 27: Standards And Regulations
› EDC internal protection from SCSI bus to media STANDARDS AND REGULATIONS The Quantum Atlas 10K II Ultra 160/m SCSI hard disk drives satisfy the following standards and regulations: Underwriters Laboratory (U.L.): Standard 1950. Information technology equipment including business equipment.
Page 28: Chapter 3 Installation
Chapter 3 INSTALLATION This chapter explains how to unpack, configure, mount, and connect the Quantum Atlas 10K II Ultra 160/m SCSI hard disk drive prior to operation. SAFETY, HANDLING, & ELECTROSTATIC DISCHARGE PROTECTION 3.1.1 Safety Precautions For your safety, follow all safety procedures described here and in other sections of the manual.
Page 29: Electrostatic Discharge (Esd) Protection
ESD problems. • Do not use any test equipment to check components on the electronics module. There are no user-serviceable components on the drive. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 30: Space Requirements
Installation SPACE REQUIREMENTS The Quantum Atlas 10K II Ultra 160/m SCSI disk drive is shipped without a faceplate (or bezel) and comes in the following SCSI interface configurations: 68-pin Wide SCSI 80-pin SCA-2 SCSI Figures 3-1 and 3-2 show the mechanical dimensions of disk drives of these two interface types.
Page 31: Shock Feet
160/m SCSI 9.1/18.2 Disk Drives (Low Profile Form Factor) Shock Feet Quantum Atlas 10K II Ultra 160/m SCSI disk drives are outfitted with plastic shock feet on the bottom edge of the base casting, near the corners, beneath the side mounting holes (translucent), and near the corners of the top cover next to the screws (black).
Page 32: Unpacking Instructions
3. When you are ready to install the disk drive, remove it from the ESD bag Figure 3.3 shows the packing assembly for a single Quantum Atlas 10K II Ultra 160/m SCSI hard disk drive. A 12-pack shipping container is available for multiple drive shipments.
Page 33: Configuration Jumpers And Connections
Note that the disk drive does not support on-board SCSI termination. Figure 3-4 presents an overview of the jumper and connector locations for the wide, 68-pin connector version of the drive. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 34 SCSI ID, bit 1 / GND 4/3 SCSI ID, bit 2 / GND ¡ ¡ Pin 28 Pin 1 28-Pin Secondary Option Connector Figure 3-4 Jumper and Connector Locations, 68-Pin SCSI Connector Version Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 35: Termpwr (Disk Drives With 68-Pin Scsi Connector)
To ensure that there is a sufficient level of power along the entire SCSI bus, Quantum Corporation recommends that all devices on the SCSI bus supply TERMPWR (if they are capable). SCSI devices are protected by a diode or similar semiconductor to prevent back flow of the terminator power when more than one device supplies this power.
Page 36: Scsi Id Selection On Option Connector (68-Pin Scsi Connector Drives)
• Use pins 2, 4, 6 and 8 as the associated ground returns for ID bits 0, 1, 2, and 3, respectively. The ground returns can be used individually, or the ground returns of all four ID bits can be combined at pin 10. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 37: Write Protection (Disk Drives With 68-Pin Scsi Connector)
11 / 12 (GND / Spin Delay) and remove any jumper from pin pair 21 / 22 (GND / Stagger Spin), if a jumper is installed there, on the Secondary Option connector (Figure 3-4). 3 10 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 38: Enable Narrow Mode (Force 8) (Disk Drives With 68-Pin Scsi Connector)
Wide Data Transfer (WDTR) negotiations can be limited to 8-bit responses either by setting the Force 8 bit of the Quantum-Unique Page (39h) of the MODE SELECT command (15h) to 1, or by installing a jumper on pin pair 23 / 24 of the Secondary Option Connector (Figure 3-4).
Page 39: Jumper Configurations And Connections For Sca-2 Connector Versions
Table 3-3 for SCSI ID pin assignments. NOTE Refer to your system or SCSI controller documentation for specific recommendations about assigning SCSI ID numbers for your specific system. 3 12 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 40: Spin Up For Sca-2 Connector Versions
DELAY_SPIN (Pin 38) and STAGGER_SPIN (Pin 78) inputs on the 80-pin SCA-2 connector (Figure 3-5). The states of these signals are set by using either hard-wired connections at the backplane or backplane logic. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives 3 13...
Page 41: Activity Led For Sca-2 Connector Versions
LED cathode to the BUSY_OUT connection, pin 77 on the SCA Connector (Figure 3-5). The LED anode must be attached to the proper +5 VDC supply through an appropriate current-limiting resistor. 3 14 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 42: Force Single-Ended Operation For Sca-2 Connector Versions
Remove the jumper or park it across Pin Pair 2 / 4 to enable the disk drive’s DIFFSENS monitoring feature, required for LVD SCSI. Pin 1 Pin 2 Pin 4 Pin 3 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives 3 15...
Page 43: Connector Pinouts And Wiring Diagrams
25 - GND 26 - Customize 27 - TermPwr 28 - TermPwr Figure 3-7 Connectors on 68-Pin SCSI Connector Versions of Atlas 10K II Ultra 160/m Hard Disk Drives 3 16 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 44 +SEL -SEL +C/D -C/D +REQ -REQ +I/O -I/O +DB(8) -DB(8) +DB(9) -DB(9) +DB(10) -DB(10) +DB(11) -DB(11) NOTE A negative sign (-) before a signal indicates an active-low signal. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives 3 17...
Page 45: Atlas 10K Ii Ultra 160/M Scsi Disk Drive With 80-Pin, Sca-2 Scsi Connector
Pin 2 Pin 1 Pin 40 SCSI SCA-2 Connector Pin 42 Pin 80 Pin 79 Figure 3-8 SCA-2 Connector on Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drive 3 18 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 46 ACTIVE LED OUT -DELAY_SPIN -STAGGER_SPIN -SCSI ID (0) -SCSI ID (1) -SCSI ID (2) -SCSI ID (3) NOTE A negative sign (-) before a signal indicates an active-low signal. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives 3 19...
Page 47: Drive Mounting And Installation
The drive can be mounted in any position. Figures 3–9 and 3-10 show the drive base assembly, with mounting locations and dimensions indicated. Figure 3-9 Mounting Dimensions for the 68-pin Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drive...
Page 48: Mounting Screw Clearance
Installation Figure 3-10 Mounting Dimensions for the 80-pin SCA-2 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drive 3.6.2 Mounting Screw Clearance CAUTION The printed circuit board assembly (PCBA) is very close to the mounting holes. Do not exceed the specified length for the mounting screws. The specified screw length allows full use of the mounting hole threads while avoiding damaging or placing unwanted stress on the PCBA.
Page 49 Leave this mounting hole unused when installing the drive with less than 4 bottom mounting screws. Figure 3-11 Mounting Screw Clearance for the Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drive 3 22 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 50: Shock Clip
3.6.5 Ventilation The Quantum Atlas 10K II Ultra 160/m SCSI hard disk drive operates without a cooling fan, provided the ambient air temperature does not exceed 131ºF (55ºC). Figures 3-12 and 3-13 show possible configurations for airflow required for adequate cooling.
Page 51: Installation In A 3.5-Inch Bay
NOTE Mounting brackets may used when installing the drive in a 5.25-inch form factor bay. Brackets supplied by Quantum Corporation to mount the drive are recommended, otherwise, the drive’s isolation characteristics may be affected. A Bracket kit (part no. 70-30695-01) is available from the Quantum Corp.
Page 52: Installation In A 5.25-Inch Bay
(6.25 millimeters) in length, or the drive may be damaged. Figure 3-14 shows the brackets representative of those used to mount the drive in a 5.25-inch bay. A bracket kit including four screws is available from Quantum Corporation. The part number of the kit is 70-30695-01.
Page 53: Drive Connections
3-15). Connect the system power cable to J2 carefully to avoid bending or damaging the connector pins. Note that drives with SCA-2 connector do not have this separate J2 Power Connector. Figure 3-15 Drive Power Connector J2 3 26 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 54: Cables
RAID connector (Champ 0.050 inch Quantum 23-416824-80 Series I 80-position plug) 1123283-9 Shunt Jumper (All drives) 2 mm-pitch shunt for configuration Quantum 23-400479-01 of drive characteristics Augat CN-AX027C5A02 Berg 86730-001 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives 3 27...
Page 55 Installation 3 28 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 56: Chapter 4 Specifications
Chapter 4 SPECIFICATIONS This chapter provides a detailed description of the physical, electrical, and environmental characteristics of the Quantum Atlas 10K II 160/m SCSI hard disk drives. SPECIFICATION SUMMARY Table 4-1 Specifications QUANTUM QUANTUM QUANTUM QUANTUM DESCRIPTION ATLAS 10K II...
Page 57 50 – 60% of the projected AFR. The development of an operational AFR methodology and derating curve, in line with the IDEMA AFR standardization effort, is underway. For more information, see the HDD Reliability White Paper on Quantum Corporation’s World Wide Web site at www.quantum.com.
Page 58: Formatted Capacity
Specifications FORMATTED CAPACITY The Quantum Atlas 10K II Ultra 160/m SCSI hard disk drives receive a low-level format at the manufacturing facility. This formatting creates the actual tracks and sectors on the disk drive. Table 4-2 shows the storage capacities of the three different disk drives that result from this process.
Page 59: Data Transfer Rates
Specifications DATA TRANSFER RATES Table 4-3 shows the data transfer rates for the Quantum Atlas 10K II Ultra 160/m SCSI disk drives. Specifications are for both the 68-pin Wide and SCA-2 connector versions of the disk drive. Table 4-3 Transfer Rates...
Page 60: Timing Specifications
Specifications TIMING SPECIFICATIONS Table 4-4 illustrates the timing specifications of the Quantum Atlas 10K II Ultra 160/m SCSI disk drives. Table 4-4 Timing Specifications QUANTUM QUANTUM QUANTUM QUANTUM ATLAS 10K II ATLAS 10K II ATLAS 10K II ATLAS 10K II DESCRIPTION 9.2 GB...
Page 61: Power
Specifications POWER The Quantum Atlas 10K II Ultra 160/m SCSI hard disk drive operates from two supply voltages: +12V 5% +5V 5% The allowable ripple and noise (60Hz – 100MHz) is 150 mV peak-to-peak, for the +12V supply and 75 mV peak-to-peak, for the +5V supply.
Page 62: Power Requirements
Specifications 4.5.3 Power Requirements This section lists the various power specifications for the Quantum Atlas 10K II Ultra 160/m SCSI hard disk drives. 4.5.3.1 Power Consumption Maximum Watts 9.2 GB 18.4 GB 36.7 GB 73.4 GB Startup (Peak) 38.8 W* 38.8 W*...
Page 63: Current Requirements
12 Vdc Supply, Avg. 960 mA 1080 mA 1080 mA 1450 mA NOTE ECMA Seek Rate is defined in ECMA standard 74. It corresponds to 52 random seeks per second. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 64: Current Transients
250 mV p - p maximum 4.5.3.6 DC Voltage Monitoring Unsafe Voltage Detection Level 5 Vdc Supply Too Low 4.50 V nominal trip point 12 Vdc Supply Too Low 10.1 V nominal trip point Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 65: Acoustics
Specifications ACOUSTICS Table 4-6 specifies the acoustical characteristics of the Quantum Atlas 10K II Ultra 160/m SCSI hard disk drive. Acoustic measurements are taken in an anechoic chamber with background noise <25 dBA. Table 4-6 Acoustical Characteristics Acoustic Emissions (Typ / Max) 9.2 GB...
Page 66: Environmental Conditions
Altitude is relative to sea level. SHOCK AND VIBRATION The Quantum Atlas 10K II Ultra 160/m SCSI hard disk drive can withstand levels of shock and vibration applied to any of its three mutually perpendicular axes, or principal base axis, as specified in Table 4-8. A functioning drive can be subjected to specified operating levels of shock and vibration.
Page 67: Reliability
Drive reliability is closely related to the temperatures to which the disk drive is exposed. The operational design termperature ambient is 30°C (86°F). Temperature ambient above 50°C (122°F) or below 5°C (41°F) may decrease drive reliability. 4-12 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 68: Chapter 5 Scsi Description
In this manual, unless otherwise stated, numerical values are given in decimal. Hexadecimal numbers, such as opcodes, are always given with an “h” following, as in 5Ah except when entire data tables are in hexadecimal. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–1...
Page 69 SCSI Description 5–2 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 70: Overview Of The Scsi Command Descriptions
READ BUFFER Sequential READ CAPACITY Immediate READ DEFECT DATA (10) Sequential READ DEFECT DATA (12) Sequential READ LONG Sequential READ SKIP MASK Normal REASSIGN BLOCKS Sequential RECEIVE DIAGNOSTIC RESULTS Sequential (continued…) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–3...
Page 71 It is recommended that initiators specify only the non-page format variants of these commands (PF=0), except for page 0x40. 5–4 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 72: Command Descriptor Block
For some commands, the CDB is accompanied by a list of parameters sent during the data-out buffer transfer. Figure 5-1 shows the format of a typical 6-byte CDB. Table 5-2 contains a description of the CDB fields. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–5...
Page 73: Typical (6-Byte) Command Descriptor Block - Data Format
12-byte commands Vendor specific Vendor specific The operation code specifies the command being requested. The list of supported SCSI commands and their operation codes are contained in Table 5-1. (continued) 5–6 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 74 Control Field The Control Field is the last byte of every Command Descriptor Block; its format is shown in Figure 5-2 and described in Table 5-3. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–7...
Page 75: Command Descriptor Block Control Field - Data Format
The Flag bit is used in conjunction with the Link Bit to notify the initiator in an expedient manner that a command has been completed. Aflag bit set to 1 is valid only when the Link Bit is set to 1. 5–8 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 76: Status/Error Reporting
The status code is contained in bits 1 through 5 of the status byte. Bits 0, 6, and 7 are reserved. Table 5-4 describes the status codes returned by the drive. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–9...
Page 77: Status Codes
(Returned for a tagged command when all of the drive's internal command buffers are in use, or when a host sends a tagged command while an Auto Contingent Allegiance condition is pending for that initiator) 5–10 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 78: Auto Contingent Allegiance Condition And Contingent Allegiance Condition
Unit Attention condition for initiators with commands in the queue. A Unit Attention condition is not generated for the “allegianced” initiator if commands belonging to it are flushed from the queue. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–11...
Page 79 SCSI Description 5–12 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 80: Extended Contingent Allegiance Condition
The extended contingent allegiance condition remains in effect until cleared by one of the following: • Hard reset • BUS DEVICE RESET message from any initiator • RELEASE RECOVERY message from the “allegianced” initiator Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–13...
Page 81 SCSI Description 5–14 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 82: Linked Commands
The last command in the chain has the Link bit cleared. NOTE: Relative addressing is not supported by the Atlas 10K II disk drive. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–15...
Page 83 SCSI Description 5–16 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 84: Data Transfer Command Components
FORMAT UNIT Defect List Header contains a Defect List Length field that contains the total length of the Defect Descriptors that follow the Defect List Header. Table 5-5 does not include these cases. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–17...
Page 85: Data-Phase Command Contents
Defect Descriptors RECEIVE Allocation Diagnostic Page DIAGNOSTIC RESULTS • ECC (25) RELEASE REPORT DEVICE IDENTIFIER REQUEST SENSE Allocation Sense Data (18) RESERVE (Extent List Option not supported) REZERO UNIT (continued) 5–18 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 86 Byte Transfer • Data (512) (must be 560) • LBA Tag (2) • EDC (2) • ECC (44) WRITE SAME Data (1 logical sector) WRITE SKIP MASK XDREAD XDWRITE XPWRITE Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–19...
Page 87 SCSI Description 5–20 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 88: Scsi Command Descriptions
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. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–21...
Page 89 SCSI Description 5–22 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 90: Change Definition Command (40H)
(0, 1, 2, 3, or 4 are legal values for Parallel SCSI Disk Drives) 4 - 7 Reserved Parameter Data Length Control Figure 5–3 CHANGE DEFINITION Command Descriptor Block — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–23...
Page 91: Change Definition - Field Descriptions
The values that can be supplied in the field are listed below: Current Definition SCSI-1 SCSI-1/CCS (Common Command Set) SCSI-2 SCSI-3 Parameter Data Length Length, in bytes, of the parameter data. Must be 0. 5–24 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 92: Format Unit Command (04H)
Block format, Bytes From Index format, and Physical Sector format. (There is one exception: a value of FFFFFFFFh in either the defect Bytes From Index field or the Defective Sector Number fields is ignored). Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–25...
Page 93: Format Unit Command Descriptor Block - Data Format
Format Data value is 1. Acceptable values are: 000b (Block [or Sector] Format) 100b (Index Format) 101b (Physical Sector Format). Vendor-Specific Not supported. Must be 0. Interleave Not supported. Ignored by the drive. 5–26 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 94: Five Forms Of Format Unit Commands
Byte 0 - 3 Defect List Header Initialization Pattern Descriptor (if any) Defect Descriptors (if any) Figure 5–5 FORMAT UNIT Parameter List — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–27...
Page 95: Format Unit Defect List Header
An Initialization Pattern bit of 0 indicates that an initialization pattern descriptor (Figure 5-7) is not included in the FORMAT UNIT parameter list, and the drive will use its default initialization pattern of all zeros. (continued) 5–28 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 96: Format Unit Defect Descriptor - Block Format
Each descriptor specifies a 4-byte defective sector address of the sector that contains the defect. Byte 0 - 3 Defective Block Address Figure 5–7 FORMAT UNIT Defect Descriptor — Block Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–29...
Page 97: Format Unit Defect Descriptor - Physical Sector And Byte From Index Format
Table 5-10. Byte IP Modifier = 0 Reserved IP Type 2 - 3 IP Length 4 - n Figure 5–9 FORMAT UNIT Initialization Pattern Descriptor — Data Format 5–30 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 98: Format Unit Initialization Pattern Descriptor - Field Descriptions
If the Initialization Pattern Type is not 0 or 1, the drive terminates the command with a CHECK CONDITION status. The Sense Key is set to ILLEGAL REQUEST, and the Additional Sense Code is set to INVALID FIELD IN PARAMETER LIST. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–31...
Page 99 SCSI Description 5–32 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 100: Inquiry Command (12H)
Enable Vital Product Data. If EVPD = 0 and CmdDt (see above) = 0, the drive returns the Standard Inquiry Data. If EVPD = 1and CmdDt = 0, the drive returns the Vital Product Data Page specified by Page Code/Operation Code. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–33...
Page 101 Specifies the number of bytes of inquiry information the drive is allowed to return to the initiator during the command's data-in buffer transfer. Error status is not returned if the value in this field truncates the requested information. 5–34 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 102: Standard Inquiry Data Page
52 - 53 SCSI Hardware Revision Number Disk Controller Hardware Revision Number Electronics Pass Number Reserved Clocking 57 - 95 Reserved Figure 5–11 Standard Inquiry Data Page — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–35...
Page 103: Standard Inquiry Data Page - Field Descriptions
SCA. Note: Product Identification may vary from the above, depending on OEM customer specifications. NOTE: Vendor Information, Product Identification, and Product Revision Level are returned as shown in Figure 5-10. 5–36 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 104: Vital Product Data
Supported Vital Product Pages Page Unit Serial Number Page Implemented Operating Definition Page ASCII Implemented Operating Page Device Identification Page Firmware Revision Page Quantum Manufacturing Number Page Negotiated Rate Information Page Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–37...
Page 105: Unit Serial Number Page (80H)
Figure 5–13 Unit Serial Number Page — Data Format Table 5–15 Unit Serial Number Page — Field Descriptions Field Definition HDA Serial Number A 12-character ASCII representation of the drive’s HDA serial number 5–38 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 106: Implemented Operating Definition Page (81H)
Save Implemented. If = 0, this bit indicates that the corresponding operation definition cannot be saved. When = 1, this bet indicates that the corresponding operating definition can be saved. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–39...
Page 107: Ascii Implemented Operating Definition Page (82H)
Reserved Page Length = 1Ch ASCII String Length = 1Bh 5 - 31 “SCSI-3, SCSI-2, SCSI-1/CCS” + byte of 0 Figure 5–15 ASCII Implemented Operating Definition Page — Data Format 5–40 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 108: Device Identification Page (83H)
Association (0) Identifier Type (1) Reserved Identifier Length (14h) 20 – 27 Vendor Identifier (“Quantum “) 28 – 39 Drive Serial Number Figure 5–16 Device Identification Page — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–41...
Page 109: Device Identification Page - Field Descriptions
Not applicable; if the Association value = 1h, the value of the Identifier contains a 4-byte, binary number that identifies the port relative to the other ports in the device. 5h - Fh Reserved 5–42 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 110: Firmware Revision Page (C0H)
Full Firmware Version Blank Fill (e.g., “T382 “) 20 - 39 Build Date and Time Blank Fill (e.g., “Jan 19 1999 07:18:15”) Figure 5–17 Firmware Revision Page — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–43...
Page 111: Quantum Manufacturing Information Page (C1H)
4 - 19 Spaces or Quantum-Unique Information NOTE: The value in the Bytes 4 - 19 field is assigned by Quantum Corporation Figure 5–18 Quantum Manufacturing Information Page — Data Format 5–44 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 112: Negotiated Rate Page (C4H)
Page Code (C4h) Reserved Page Length = 4h Transfer Period Factor REQ / ACK Offset Rsv’d AIPD AIPCE PARL FAIR SYNC Reserved Figure 5–18a Negotiated Rate Information Page — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–45...
Page 113 When = 1, indicates that information unit transfers shall be used when PARL is 0) received from the initiator and that information unit transfers are enabled when received from the target. See Appendix C. 5–46 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 114: Command Support Data
ECMA Version ANSI-Approved Version 3 – 4 Reserved CDB Size (m – 5) (MSB) 6 – m CDB Usage Data (LSB) Figure 5–19 Command Support Data Page — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–47...
Page 115: Command Support Data Page - Field Descriptions
“reserved” in the CDB for the OpCode being queried, the map has a 0 in that corresponding bit position. Refer to Table 5-18 for a list of the data returned for each of the OpCode values that can be sent in the INQUIRY command. 5–48 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 116: Command Support Data Page Command Or Operation Codes
25E0FFFFFFFF00000103 READ (10) 28F8FFFFFFFF00FFFF03 WRITE (10) 2AF8FFFFFFFF00FFFF03 SEEK (10) 2BE0FFFFFFFF00000003 WRITE AND VERIFY 2EF2FFFFFFFF00FFFF03 VERIFY 2FF2FFFFFFFF00FFFF03 SYNCH. CACHE 35E0FFFFFFFF00FFFF03 READ DEFECT DATA 37E01F00000000FFFF03 WRITE BUFFER 3BEFFFFFFE00FFFFFF03 READ BUFFER 3CEFFFFFFFFFFFFFFF03 (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–49...
Page 117 55100000000000FFFF03 RESERVE (10) 5610FFFF000000FFFF03 RELEASE (10) 5710FFFF000000FFFF03 MODE SENSE (10) 5AE8FF00000000FFFF03 PERSIST. RES. IN 5E1F0000000000FFFF03 PERSIST. RES. OUT 5F1FFF00000000FFFF03 REPORT LUNS A00000000000FFFFFFFF0003 SKIP READ (10) E8E0FFFFFFFFFFFFFF03 SKIP WRITE (10) EAE0FFFFFFFFFFFFFF03 5–50 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 118: Log Select Command (4Ch)
Save Parameters. A value of 1 indicates that certain counters are to be cleared from non-volatile memory. Page Control. Must be 01b OR 11b. Parameter Must be 0. List Length Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–51...
Page 119 SCSI Description 5–52 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 120: Log Sense Command (4Dh)
Events are reported as lists. For example, the last known failure might be reported with the ASCII string “Last known failure code 960A(X)”. Table 5 21 lists the log pages supported by the drive. Contact your Quantum Applications Engineer for more information.
Page 121: Disk Drive Log
ECC On The Fly NOTE: Page codes 2Fh, 31h, 36h, 37h, 38h, 39h, 3Ah, 3Bh, 3Dh, 3Eh, and 3Fh are vendor-specific pages that are unique to Quantum drives. Contact your Quantum representative for more information. 5–54 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 122: Log Sense Command Descriptor Block
This specifies the number of bytes of data that the drive is allowed to pass during the DATA IN phase. The requested page is truncated if its length exceeds the number of bytes specified in this field. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–55...
Page 123: Log Sense Log
In most cases, the parameter value is a 4-byte longword that contains the present value of an error or performance counter. See Figure 5 23 for the format of a generic log parameter. 5–56 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 124 GLTSD bit is set in Mode Page 0Ah, then the value would be 20h. If the page is volatile, then the value is 60h. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–57...
Page 125 SCSI Description 5–58 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 126: Mode Select (6) Command (15H)
This field tells the drive how many bytes of Mode Parameters to fetch in the data-out buffer transfer. A CHECK CONDITION status is returned if this value truncates a page. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–59...
Page 127: Initiator-Changeable Mode
Quantum-Unique Page NOTES: This page is not supported by the SCSI-1/CCS Operating Mode. The Notch and Partition page is changeable but NOT savable. 5–60 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 128: Mode
Mode Parameter Header. Byte 0 – 3 Mode Parameter Header 4 – 11 Block Descriptor (optional) 4 – n Page(s) 12 – n (optional) Figure 5–25 Mode Parameter List — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–61...
Page 129: Mode Parameter Header (6-Byte) - Data Format
Zero (0) if no Block Descriptor is supplied. The length is eight (8) if a Block Descriptor is supplied. Byte Density Code 1 – 3 Number of Blocks Reserved 5 – 7 Block Length Figure 5–27 Mode Parameter Block Descriptor – Data Format 5–62 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 130: Categories Of Changeable
A value in this field is never used or validated; it is never looked at by the drive. Ignored fields are not underlined in the Mode Parameter Pages’ figures or tables and are not described in the Field Description tables. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–63...
Page 131: Unit Attention Condition Page (00H)
Disable Unit Attention. When set to the default value of 0, the drive reports a CHECK CONDITION for any UNIT ATTENTION condition (power-on, SCSI bus reset, etc.) If set to 1, the drive does not report any UNIT ATTENTION conditions. 5–64 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 132: Read-Write Error Recovery Page (01H)
The PS bit is underlined, meaning it will be set on a MODE SENSE command, since the page is savable. Figure 5–29 Read-Write Error Recovery Page — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–65...
Page 133: Read-Write Error Recovery Page - Field Descriptions
Logical Block Number to the Grown Defect List. Reallocation is done only when the drive is able to recover the sector’s data unless the HrdBBR bit of the Quantum (Vendor) Special Function Control Page is set. When ARRE is 0, the drive does not automatically reallocate bad sectors encountered during a read operation.
Page 134 Fully supported and temporary fields are underlined. Unsupported and ignored fields are not underlined. The PS bit is underlined, meaning it will be set on a MODE SENSE command, since the page is savable Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–67...
Page 135: Disconnect-Reconnect Page (02H)
Fully supported fields are underlined. Unsupported and ignored fields are not underlined. The PS bit is underlined, meaning it will be set on a MODE SENSE command, since the page is savable. Figure 5–30 Disconnect–Reconnect Page — Data Format 5–68 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 136 SCSI Bus after a SCSI Command is received. Disconnect Immediate works only when a typical, error-free command is received. Disconnect Immediate does not apply in exception conditions (for example, SDTR received, error, etc.). Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–69...
Page 137: Disconnect-Reconnect Page - Field Descriptions
Fully supported and temporary fields are underlined. Unsupported fields are not underlined. The PS bit is underlined, meaning it will be set on a MODE SENSE command, since the page is savable. 5–70 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 138: Verify Error Recovery Page (07H)
The PS bit is underlined, meaning it will be set on a MODE SENSE command, since the page is savable Figure 5–31 Verify Error Recovery Page — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–71...
Page 139: Verify Error Recovery Page - Field Descriptions
Fully supported and temporary fields are underlined. Unsupported fields are not underlined. The PS bit is underlined, meaning it will be set on a MODE SENSE command, since the page is savable. 5–72 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 140: Caching Page (08H)
The PS bit is underlined, meaning it will be set on a MODE SENSE command, since the page is savable 2. Bytes 12 to 19 are returned only if the device operating definition is SCSI-3. Figure 5–32 Caching Page — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–73...
Page 141: Caching Page - Field Descriptions
READ command. If the number of sectors is greater the than the value specified, anticipatory pre-fetch is not performed for the command. When 0, anticipatory pre-fetch is disabled. Ignored by the drive. (continued) 5–74 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 142 Fully supported fields are underlined. Unsupported and ignored fields are not underlined. The PS bit is underlined, meaning it will be set on a MODE SENSE command, since the page is savable. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–75...
Page 143: Control Mode Page (0Ah)
MODE SENSE command, since the page is savable. 2. Bytes 8 to 11 are returned only if the device operating definition is SCSI-3. Figure 5–33 Control Mode Page — Data Format 5–76 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 144 Contingent Allegiance (CA) condition or Extended Contingent Allegiance (ECA) is cleared. Processing of queued commands is resumed when a CA/ECA condition is cleared. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–77...
Page 145 2. Fully supported and temporary fields are underlined. Unsupported fields are not underlined. The PS bit is underlined, meaning it will be set on a MODE SENSE command, since the page is savable 5–78 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 146: Notch And Partition Page (0Ch)
Maximum Number of Notches 6 – 7 Active Notch 8 – 11 Starting Boundary 12 – 15 Ending Boundary 16 – 23 Pages Notched Figure 5–34 Notch and Partition Page — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–79...
Page 147 This field is unchangeable. When used with the MODE SELECT command, this field is ignored. NOTE: Temporary fields are underlined. Unsupported fields are not underlined. (continued) 5–80 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 148 If a bit is 0, the corresponding mode page contains parameters that are constant for all notches. The value of 1 in bits 3 and 12 indicates that Page 03h and 0Ch contain different parameters for different notches. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–81...
Page 149: Xor Control Mode Page (10H)
20 – 21 Reserved (LSB) (MSB) 22 – 23 REBUILD Delay (LSB) NOTE: Fully supported fields are underlined. Ignored fields are not underlined. Figure 5–35 XOR Control Mode Page Data Format 5–82 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 150 REBUILD Delay The drive does not support this option and ignores any value placed in this field. NOTE: Fully supported fields are underlined. Ignored fields are not underlined. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–83...
Page 151: Power Condition Page (1Ah)
MODE SELECT command with the PS bit set. Following the figure, a table is provided that contains a description of the Power Condition Page fields. 5–84 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 152 MODE SELECT (6) Command (15h) (continued) Byte Page Code (1Ah) Page Length (0Ah) Reserved Reserved IdlEnb SbyEnb 4 - 7 Idle Timer 8 - 11 Standby Timer Figure 5–36 Power Condition Page – Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–85...
Page 153 SbyEnb field must be set to 1. The internal minimum value for this field is 15 minutes. NOTE: Fully supported and temporary fields are underlined. Unsupported fields are not underlined. 5–86 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 154: Information Exceptions Control Page (1Ch)
When this bit = 0, current accumulated SMART data is preserved across power cycles. When this bit = 1, current accumulated SMART data is lost across power cycles. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–87...
Page 155 Table 5-41. The relative priority of reporting of multiple informational exceptions is vendor- specific. (continued) 5–88 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 156 (or until a LOG SELECT command clears it) and can be retrieved at any time using MRIE mode 6. NOTE: The Report Count field does not apply to MRIE mode 6. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–89...
Page 157 REQUEST SENSE command. The sense key is set to NO SENSE and the additional sense code will indicate the cause of the informational exception condition. 7h – Bh Reserved. Ch – Fh Vendor-specific. 5–90 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 158: Quantum-Unique Page (39H)
SCSI Description MODE SELECT (6) Command (15h) (continued) 5.14.3.12 Quantum-Unique Page (39h) This Quantum-unique page is implemented for historical purposes only. All unused fields are changeable but are ignored by the drive. Byte Rsv’d Page Code (39h) Page Length (14h)
Page 159 Disable Wide Residue Message. When this field = 0, the disk drive sends the IGNORE WIDE RESIDUE message. When this field = 1, the disk drive will not send the IGNORE WIDE RESIDUE message. (continued) 5–92 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 160 When the value of this field =1, the Stagger Spin Delay field (Bytes 6 & 7) is in effect. The disk drive operates as if its Spin Delay jumper was installed. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–93...
Page 161 5, bit 1) and IWN are set =1, the wide data transfer negotiation takes place first. A wide data transfer negotiation causes the disk drive to reset any synchronous agreement to asynchronous mode. (continued) 5–94 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 162 No MAIOP. When this field = 1, MAIOP is disabled. DNTRA Disable Next Track Read Ahead. Do not prefetch next track. Soft Fault When this field is set = 1, the disk drive’s FAULT led illuminates. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–95...
Page 163 When this field = 0, “total bytes read/written” field on Log Page 02h and 03h reported as number of bytes. When = 1, field is reported as number of blocks. (continued) 5–96 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 164 MaxSkip can be reduced. Values allowed range from 0 to 255. Vendor Specific Proprietary Information Minimum Block Threshold This field specifies the minimum number of blocks ready before starting data transfer. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–97...
Page 165 AIP data from the host for the entire negotiation message. If so, AIP is activated and remains so for as long as that initiator is still valid. If not, no errors are reported, and another attempt is made at the next negotiation. 5–98 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 166: Mode Select (10) Command (55H)
0 - 1 Mode Data Length (LSB) Medium Type Device-Specific Parameter 4 - 5 Reserved (MSB) 6 - 7 Block Descriptor Length (LSB) Figure 5–40 Mode Parameter Header (10-Byte) — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–99...
Page 167 The Density Code field is unique for each device type. Direct access devices value is zero. Block Length The value in this field specifies the length in bytes of each logical block described by the block descriptor. 5–100 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 168 SCSI Description This page intentionally left blank. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–101...
Page 169 SCSI Description This page intentionally left blank. 5–102 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 170: Mode Sense (6) Command (1Ah)
Refer to Tables 5-26 and 5-47 for a complete list of the Mode Pages (changeable and read-only). A Page Code of 3Fh causes all supported pages to be returned. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–103...
Page 171: Read-Only Mode
Table 5–47 Read-Only Mode Pages Page Code Page Name Reports the drive's Size (bytes) Format Device Medium format Rigid Disk Geometry Total cylinder head and rotational speed Vendor Unique Caching Total segments 5–104 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 172: Format Device Page (03H)
14 - 15 Interleave 16 - 17 Track Skew Factor 18 - 19 Cylinder Skew Factor SSEC HSEC SURF Reserved 21 - 23 Reserved Figure 5–44 Format Device Page — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–105...
Page 173 SURF A Surface bit value of 0 indicates that the drive allocates progressive addresses to all logical blocks within a cylinder prior to allocating addresses on the next cylinder. 5–106 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 174: Rigid Disk Geometry Page (04H)
Drive Step Rate (0) 14 - 16 Landing Zone Cylinder Reserved Rotational Offset Reserved 20 - 21 Medium Rotation Rate 22 - 23 Reserved Figure 5–45 Rigid Disk Geometry Page — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–107...
Page 175 The modes are: 00b – Disabled 10b – Master 01b – Slave 11b – Not supported RPL can be overridden if the Quantum (Vendor) Special Function Control page Auto field value = 1. This drive does not support spindle synchronization. (continued) 5–108...
Page 176 The specified value may be rounded. Rotational offset is not used when the drive is configured as the synchronized-spindle master. Medium Rotation Rate 10021 The disk rotation speed in RPM. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–109...
Page 177: Vendor-Unique Caching Page (38H)
A PS bit value of 1 indicates that the disk drive is capable of saving the page in a non-volatile vendor specific location. Cache Table Size This field indicates the number of cache segments supported by the drive. 5–110 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 178: Mode Sense (10) Command (5Ah)
6 - 7 Block Descriptor Length Figure 5–48 Mode Parameter Header (10 Byte) — Data Format Field Descriptions for the Mode Parameter Header are given in the table that follows. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–111...
Page 179 Length field. A value that is less than the maximum value will decrease the number of initiator-accessible logical blocks to the amount specified. Block Length The value in this field specifies the length, in bytes, of each logical block. 5–112 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 180: Persistent Reservation In Command (5Eh)
Byte Operation Code (5Eh) Reserved Service Action 2 - 6 Reserved (MSB) 7 – 8 Allocation Length (LSB) Control Figure 5–50 PERSISTENT RESERVATION IN Command Descriptor Block — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–113...
Page 181 PERSISTENT RESERVATION IN command with an Allocation Length field large enough to contain the entire list of parameters. 5–114 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 182 PERSISTENT RESERVATION OUT, Reserve, Pre-empt, Pre-empt and Clear, or Register service actions. Each key can be examined by the application client for correlation with a set of initiators and SCSI ports Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–115...
Page 183 PERSISTENT RESERVATION IN command has indicated a Read Reservations action. Figure 5-54 and Table 5-55 detail the contents of each Reservation Descriptors field. 5–116 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 184 If the Scope field represents an “Element” reservation, the Scope-Specific Address field contains the Element address, zero-filled in the most significant bytes to fit the field and the Extent Length field is set to zero. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–117...
Page 185 The value of the Type field specifies the characteristics of the persistent reservation being established for all data blocks within the extent or within the logical unit. Refer to Table 5-56 for the applicable Type codes and their meanings 5–118 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 186 Allowed; any initiator may reserve the logical unit, extents, or elements as long as the persistent reservations do not conflict with any reservations already known to the device server. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–119...
Page 187 Allowed; any initiator may reserve the logical unit, extents, or elements as long as the persistent reservations to not conflict with any reservations already known to the device server. (continued) 5–120 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 188 Allowed; any initiator may reserve the logical unit, extents, or elements as long as Registrants Only the persistent reservations to not conflict with any reservations already known to the device server. 7h - Fh Reserved Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–121...
Page 189 Y = Conflict RO = Registrants Only O = Conflict occurs if extent or element overlaps with * = Conflicts with all reservation requests existing extent or element reservation. from other initiators. 5–122 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 190: Persistent Reservation Out Command (5Fh)
Reserved Service Action Scope Type 3 - 6 Reserved (MSB) 7 – 8 Parameter List Length (18h) (LSB) Control Figure 5–54 PERSISTENT RESERVATION OUT Command Descriptor Block — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–123...
Page 191 06 – 1Fh Reserved Reserved Refer to Table 5-59 for detailed descriptions of each of the service action codes. (continued) 5–124 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 192 SCSI-3 Medium Changer Commands (SMC) standard. The Element scope is optional for all device servers that implement PERSISTENT RESERVATION OUT. 3h – Fh Reserved Reserved (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–125...
Page 193 PERSISTENT RESERVATION OUT with the Register service action. When the reservation has been removed, no information is reported for the initiator in the Read Keys service action of the resulting PERSISTENT RESERVATION IN command. (continued) 5–126 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 194 Pre-empt or Pre- empt and Clear. Note that a Release service action should not be performed if any operations interlocked by the persistent reservation have not yet completed. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–127...
Page 195 Type value are permitted if no conflicting persistent reservations other than the reservations being pre-empted are held by another initiator. (continued) 5–128 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 196 The persistent reservation of a logical unit or extent that has the same Type value is permitted as long as no conflicting persistent reservations other than the reservations being pre-empted are permitted. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–129...
Page 197 Allowed; any initiator may reserve the logical unit, extents, or elements as long as the persistent reservations do not conflict with any reservations already known to the device server. (continued) 5–130 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 198 Allowed; any initiator may reserve the logical unit, extents, or elements as long as the persistent reservations to not conflict with any reservations already known to the device server. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–131...
Page 199 Service Action Reservation Key (LSB) (MSB) 16 – 19 Scope-Specific Address (LSB) Reserved APTPL Reserved (MSB) 22 – 23 Extent Length (LSB) Figure 5–55 PERSISTENT RESERVATION OUT Parameter List — Data Format 5–132 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 200 The most recently received valid APTPL value from any initiator governs the logical unit’s behavior in the event of a power loss. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–133...
Page 201 Extent Valid Pre-empt Element Valid Valid Element Valid Pre-empt & Clear Valid Valid Ignored Pre-empt & Clear Extent Valid Valid Extent Valid Pre-empt & Clear Element Valid Valid Element Valid 5–134 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 202: Read (6) Command (08H)
Specifies the number of contiguous logical blocks of data to transfer. A transfer length of 0 indicates that 256 logical blocks will be transferred. Any other value indicates the number of logical blocks that will be transferred. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–135...
Page 203 SCSI Description 5–136 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 204: Read (10) Command (28H)
Any other value indicates the number of logical blocks to be transferred. The drive returns a CHECK CONDITION status with the correct sense data if the specified transfer extends beyond the logical sector space. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–137...
Page 205 SCSI Description 5–138 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 206: Read Buffer Command (3Ch)
Byte Operation Code (3Ch) Reserved Mode Buffer ID 3 - 5 Buffer Offset 6 - 8 Allocation Length Control Figure 5–58 READ BUFFER Command — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–139...
Page 207 The echo buffer will transfer the same data as when the WRITE BUFFER command with the mode field set to echo buffer was issued. Buffer ID Ignored. Buffer Offset Ignored. 5–140 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 208: Read Capacity Command (25H)
In either case, Block Length in Bytes (Figure 5-60) is the unit's logical sector size, as determined by the Block Length field in the Mode parameter Block Descriptor. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–141...
Page 209 Table 5-66 for a description of these data fields. Byte 0 - 3 Returned Logical Block Address 4 - 7 Block Length in Bytes Figure 5–60 READ CAPACITY Returned Data — Data Format 5–142 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 210: Read Defect Data (10) Command (37H)
Grown Defect List are returned. The Plist is returned followed by the Glist (the lists are not merged). When both are set to 0, only the Defect List Header (Figure 5-64) is reported to the initiator. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–143...
Page 211 Cylinder Number of Defect Head Number of Defect 4 - 7 Defective Bytes From Index / Defective Sector Number Figure 5–63 Defect Descriptor — Bytes From Index Format, or Physical Sector Format 5–144 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 212 (CHECK CONDITION status is not returned when this happens). The initiator is responsible for comparing the defect list length and the allocation length to ensure that a partial list was not received. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–145...
Page 213 SCSI Description 5–146 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 214: Read Defect Data (12) Command (B7H)
Grown Defect List are returned. The Plist is returned followed by the Glist (the lists are not merged). When both are set to 0, only the Defect List Header (Figure 5-68) is reported to the initiator. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–147...
Page 215 Cylinder Number of Defect Head Number of Defect 4 - 7 Defective Bytes From Index / Defective Sector Number Figure 5–67 Defect Descriptor — Bytes From Index Format, or Physical Sector Format 5–148 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 216 (CHECK CONDITION status is not returned when this happens). The initiator is responsible for comparing the defect list length and the allocation length to ensure that a partial list was not received. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–149...
Page 217 SCSI Description 5–150 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 218: Read Long Command (3Eh)
ECC bits + 6 pad bits that are not written to media but are only needed for transfer = 4496 bits or 562 bytes). Any other value in this field results in a CHECK CONDITION status and the appropriate sense data. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–151...
Page 219 Logical Block Address Bits + Force Error Bit 514 - EDC (8 Bits) 516 - 45 ECC Bits + 8 Pad Bits Figure 5–70 READ LONG Command — Returned Data 5–152 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 220: Read Skip Mask Command (E8H)
The transfer length field must be equal to the number of “1” bits in the skip mask. If a READ (10) is used with 0 as the transfer length, a transfer length of 256 data blocks is implied. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–153...
Page 221 SCSI Description 5–154 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 222: Reassign Blocks Command (07H)
Logical Block Addresses passed in the Defect List. The value must be four times the number of Defect Descriptors supplied. Zero (0) is a valid value and makes the command a NOP. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–155...
Page 223 If all defects were reassigned, but some other error occurred, then FFFFFFFFh is posted in the command-specific field. 5–156 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 224: Receive Diagnostic Results Command(1Ch)
RECEIVE DIAGNOSTICS RESULTS command. Byte Operation Code (1Ch) Reserved Page Code Value 3 - 4 Allocation Length Reserved Control Figure 5–75 RECEIVE DIAGNOSTIC RESULTS Command Descriptor Block — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–157...
Page 225 Specifies the number of bytes of diagnostic-page results the drive is allowed to send to the initiator. A CHECK CONDITION is not returned if this value truncates the information available. 5–158 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 226: Supported Diagnostics Pages Page (00H)
(the Page Length in the Supported Diagnostics page must be 0). 2. Send a RECEIVE DIAGNOSTIC RESULTS command to the drive. The listing of Supported Diagnostic Pages is returned by the drive. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–159...
Page 227: Translate Address Page (40H)
RECEIVE DIAGNOSTIC RESULTS command, and Table 5-76 contains a description of the data fields. Multiple translated addresses are returned if the logical sector size is greater than 512 bytes (more than one physical data sector). 5–160 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 228 Translated Address (Sector Number or Bytes From Index) NOTE: Bytes 6 through 13: One set of these bytes is required for each sector per Logical Block Address. Figure 5–77 Translate Address Page — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–161...
Page 229 Translate Format The Translate Format field specifies the format into which the initiator wants the address translated. The value must be 101b, specifying the Physical Sector format. 5–162 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 230: Release (6) Command (17H)
Assuming that the RELEASE Command Descriptor Block is valid, the drive always returns a GOOD status for this command. An actual release only happens if the initiator has the unit reserved for itself or a third-party initiator. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–163...
Page 231 SCSI Description 5–164 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 232: Release (10) Command (57H)
Extent Reservation Identification Third Party Device ID 4 - 6 Reserved (MSB) 7 - 8 Parameter List Length (LSB) Control Figure 5–79 RELEASE (10) Command Descriptor Block — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–165...
Page 233 Assuming that the RELEASE Command Descriptor Block is valid, the drive always returns a GOOD status for this command. An actual release only happens if the initiator has the unit reserved for itself or a third-party initiator. 5–166 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 234: Report Device Identifier Command
REPORT DEVICE IDENTIFIER command with an Allocation Length field large enough to contain all of the data. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–167...
Page 235 SET DEVICE IDENTIFIER command. The value of the Identifier is changed only by a successful SET DEVICE IDENTIFIER command. The Identifier value persists through device resets, power cycles, and formatting of media. 5–168 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 236: Report Luns Command (0Ah)
Allocation Length. The format of the report of configured logical units is shown in Figure 5- Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–169...
Page 237 If the allocation length in the CDB is too small to allow transfer of information about all of the logical units configured, the LUN list length value is not adjusted to reflect the truncation. 5–170 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 238: Request Sense Command (03H)
For Parallel SCSI disk drives, sense data is available if the previous command from the initiator terminated with a CHECK CONDITION status, or if the previous command from the initiator ended with an unexpected BUS FREE error. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–171...
Page 239: Clearing Sense Data
5.34.4 Sense Data Format for Error Code 70h and Error Code 71h The sense data format for error code 70h (current error) and error code 71h (deferred error) is shown in Figure 5-85; the data fields are defined in Table 5-83. 5–172 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 240 Additional Sense Code Qualifier Field Replaceable Unit Code SKSV Sense-Key Specific 16 - 17 Sense-Key Specific (continued) Figure 5–85 Sense Data Format for Error Code 70h or 71h — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–173...
Page 241 The Additional Sense Code Qualifier field indicates detailed Qualifier information related to the additional sense code. If the drive does not have detailed information, the field is set to 0. (continued) 5–174 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 242 (Sense Key 4h). HARDWARE ERROR The drive detected a non-recoverable hardware failure while performing the command or during a self-test. The error type could be controller failure, device failure, etc. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–175...
Page 243 A Read or Write command was attempted on a sector that is protected for this operation. The requested operation was not performed. VENDOR SPECIFIC This sense key is used to report specific Quantum conditions. ABORTED COMMAND The drive aborted the command. The initiator may be able to reissue the command successfully.
Page 244 (compare) operation. For a RECOVERED ERROR, the last Logical Block Address in the error is returned; for a MEDIUM ERROR the first Logical Block Address is returned. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–177...
Page 245 The information field echoes the WRITE LONG command’s Logical Block Address. ILLEGAL REQUEST The transfer length residue (requested minus correct length) if the transfer length is wrong. Note: ILI will be set. 5–178 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 246 Positioning Error Detected by READ on WRITE: Recovered Servo WRITE Not OK Assertion: Recovered Servo READ Not OK Assertion: Recovered Data Synchronization Mark Error Spoke Synchronization Mark Error, Recovered Spoke Synchronization Mark Error, Recovered (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–179...
Page 247 Command Required Logical Unit Is Not Ready, Format In Progress FileSystem Boot Area Unreadable at POR Drive Not Ready, Servo Error (See Info Block) Failure to Read Sector Descriptor File (continued) 5–180 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 248 Write Error, Recommend Reassignment Unrecovered Read Error Unrecovered Read Error, Auto Reallocation Failed Unrecovered Read Error, Recommend Reassignment System File Has Checksum Error Error Reading Diskware Vector Table File (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–181...
Page 249 Required H/W Process Did Not Complete Error Writing FileSystem (neg cyl) File Error Reading FileSystem (neg cyl) File Forced Error Split Slow PLL Error Block State Machine Disabled Error Motor Speed Error (continued) 5–182 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 250 Switch Point Calibration Results Are Bad Recalibration Track Number Bad Seek Failure During Switch Point Calibration Not All Head(s) in USER Head Map Were Found Alive Valid SAM(s) Not Found (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–183...
Page 251 Svo, Unknown Wdge Err – 1 Svo, Unknown Wdge Err – 2 Svo, Timeout Waiting for Burst Svo, Confined Sync Timeout Svo, R/W Serial Timeout Svo, Context Acquire Timeout (continued) 5–184 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 252 Servo Record Did Not Complete Read Seek Failed Write Seek Failed Raw Seek Failed Servo Diagnostic Test Running Invalid 97/98 Super CMD sequence; Must Send 97 Before 98 Super CMD 97 Already Running (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–185...
Page 253 Invalid Message Error 06h UNIT ATTENTION SMART Overtemperature Trip Format Completed by Another Initiator Power On, SCSI Bus Reset, or Bus Device Reset Occurred Power On Occurred SCSI Bus Reset Occurred (continued) 5–186 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 254 Selection or Reselection Failure SCSI Bus Parity Error Detected Initiator Detected Error (IDE) Message Received ACK Overrun Detected Error Invalid Message Error Overlapped Commands Attempted 0Eh MISCOMPARE No Additional Information Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–187...
Page 255 (Figure 5-88) The data format of the Field Pointer bytes associated with the ILLEGAL REQUEST sense key is shown in Figure 5-86; the description of the data is in Table 5–88. 5–188 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 256 Figure 5-87; the description of the data is contained in Table 5-89. Byte SKSV = 1 Reserved 16 - 17 Progress Indication Figure 5–87 NOT READY Sense Key - Progress Indication Bytes — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–189...
Page 257 Table 5–90 MEDIUM ERROR or RECOVERED ERROR Sense Key - Retry Count — Field Descriptions Field Description SKSV Sense-Key Specific Valid Retry Count The number of times an I/O operation was retried 5–190 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 258: Reserve (6) Command (16H)
ID6 (the target at ID2 gets reserved for the initiator ID6), then only ID7 can release the target at ID2 (using a Third Party release). ID6 cannot release the reservation even though the reservation was made on its behalf. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–191...
Page 259 The drive returns RESERVATION CONFLICT status if the unit is already reserved for another initiator. Once the reservation is honored, any command from another initiator (except INQUIRY or REQUEST SENSE) is rejected with RESERVATION CONFLICT status. 5–192 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 260: Reserve (10) Command (56H)
Extent Reservation Identification Third Party Device ID 4 - 6 Reserved (MSB) 7 - 8 Parameter List Length (LSB) Control Figure 5–90 RESERVE (10) Command Descriptor Block — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–193...
Page 261 0, the extent begins at the specified logical block address and continues through the last logical block address on the logical unit. The data format of extent descriptors is shown in Figure 5-91. 5–194 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 262 Exclusive access. While this reservation is active, no other initiator is permitted any access to the reserved extent. RelAdr is always 0: The Quantum Atlas 10K II hard disk drive does not support relative addressing. If both the LongID and the Extent bits = 1, then the parameter list takes the format shown in Figure 5-92.
Page 263 Figure 5-93. Byte (MSB) 0 - 7 Third Party Device ID (LSB) Figure 5–93 RESERVE (10) ID Only Parameter List — Data Format 5–196 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 264: Rezero Unit Command (01H)
Byte Operation Code (01h) 1 - 4 Reserved Control Figure 5–94 REZERO UNIT Command Descriptor Block — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–197...
Page 265 SCSI Description 5–198 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 266: Seek (6) Command (0Bh)
Byte Operation Code (0Bh) Reserved Logical Block Address 2 - 3 Logical Block Address Reserved Control Figure 5–95 SEEK (6) Command Descriptor Block — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–199...
Page 267 SCSI Description 5–200 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 268: Seek (10) Command (2Bh)
Byte Operation Code (2Bh) Reserved 2 - 5 Logical Block Address 6 - 8 Reserved Control Figure 5–96 SEEK (10) Command Descriptor Block — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–201...
Page 269 SCSI Description 5–202 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 270: Send Diagnostic Command (1Dh)
This field is only valid when the PF bit = 1 and must be 0 when the PF bit is 0. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–203...
Page 271: Supported Diagnostic
Supplied Format 000b (LBA) Reserved Translate Format 101b (Physical Sector) 6 - 9 Address to Translate (LBA Format) 10 - 13 Reserved Figure 5–99 Translate Address Page — Data Format 5–204 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 272: Set Device Identifier Command
Identifier length of 0. If the parameter list length exceeds 64 bytes, then the drive returns a Check Condition status with the sense key set to Illegal Request, and an additional sense code of Invalid Field in CDB. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–205...
Page 273 The value reported in this field is the data to be returned by all subsequent REPORT DEVICE IDENTIFIER commands, until a new SET DEVICE IDENTIFIER command is issued that changes the data. 5–206 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 274: Start Stop Unit Command (1Bh)
When the value is 0, the drive spins down. Subsequent media access commands are rejected with CHECK CONDITION status and the proper sense data. Power Conditions The Power Conditions field is not supported. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–207...
Page 275 SCSI Description 5–208 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 276: Synchronize Cache Command (35H)
When Number of Blocks and Logical Block Address are both 0, the drive removes all unwritten cache sectors to the medium. It is not considered an error when no sectors within the specified range are in the cache memory. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–209...
Page 277 SCSI Description 5–210 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 278: Test Unit Ready Command (00H)
CHECK CONDITION status with the appropriate sense keys and qualifiers. Byte Operation Code (00h) 1 - 4 Reserved Control Figure 5–104 TEST UNIT READY Command Descriptor Block — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–211...
Page 279 SCSI Description 5–212 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 280: Verify Command (2Fh)
The number of contiguous sectors that are to be verified. The drive returns a CHECK CONDITION status with the correct sense data if the specified transfer extends beyond out of the logical sector space. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–213...
Page 281 SCSI Description 5–214 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 282: Write (6) Command (0Ah)
The number of contiguous logical blocks of data to transfer. A transfer length of 0 indicates 256 logical blocks are to be transferred. Any other value indicates the actual number of logical blocks that will be transferred. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–215...
Page 283 SCSI Description 5–216 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 284: Write (10) Command (2Ah)
The number of contiguous logical blocks of data to write. The drive returns CHECK CONDITION status with the correct sense data if the specified transfer would cause the write operation to extend beyond the Logical Block Address space. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–217...
Page 285 SCSI Description 5–218 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 286: Write And Verify Command (2Eh)
When 0, the drive performs a medium verification with no data comparison of the sectors written by the command. RelAdr Relative Address. This feature is not supported and the field must be 0. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–219...
Page 287 The number of contiguous logical blocks of data to write and verify. The drive returns CHECK CONDITION status with the correct sense data if the specified transfer would cause the write operation to extend beyond the Logical Block Address space. 5–220 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 288: Write Buffer Command (3Bh)
Byte Operation Code (3Bh) Reserved Mode Buffer ID 3 - 5 Buffer Offset 6 - 8 Parameter List Length Control Figure 5–109 WRITE BUFFER Command Descriptor Block — Data Format Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–221...
Page 289 In this mode, the host transfers data and stores it in an echo buffer. The data will be preserved in the echo buffer unless there is an intervening command. Buffer ID Ignored. Buffer Offset Ignored. 5–222 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 290: Write Long Command (3Fh)
If the drive is configured with a sector size other than 512 bytes per sector, the WRITE LONG command affects the first 512 byte sector set aside by the drive for the given Logical Block Address. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–223...
Page 291 SCSI Description 5–224 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 292: Write Same Command (41H)
This field contains the number of contiguous logical blocks that are to be written. A value of 0 requests that all the remaining logical blocks on the medium are to be written. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–225...
Page 293 SCSI Description 5–226 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 294: Write Skip Mask Command (Eah)
The transfer length field must be equal to the number of “1” bits in the skip mask. If a WRITE (10) is used with 0 as the transfer length, a transfer length of 256 data blocks is implied. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–227...
Page 295 SCSI Description 5–228 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 296: Xdread (10) Command (52H)
Transfer Length Specifies the number of contiguous logical blocks of data to transfer. This length must match the length of the original XDWRITE (10) command that generated the XOR data requested. Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–229...
Page 297 SCSI Description 5–230 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 298: Xdwrite (10) Command (50H)
Disable Write bit of 1 indicates that the data will not be written to the medium. If the Disable Write bit is set to 1, the FUA bit is ignored. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–231...
Page 299 Specifies the number of contiguous logical blocks to write. The drive returns CHECK CONDITION status with the correct sense data if the specified transfer will cause the WRITE operation to extend beyond the Logical Block Address space. 5–232 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 300: Xpwrite (10) Command (51H)
Force Unit Access. When the value is 0, the drive is allowed to satisfy the read with cache-resident data. A value of 1 indicates that the drive accesses the media in performing the command. (continued) Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–233...
Page 301 Specifies the number of contiguous logical blocks to write. The drive returns CHECK CONDITION status with the correct sense data if the specified transfer will cause the WRITE operation to extend beyond the Logical Block Address space. 5–234 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives...
Page 302: Chapter 6 Feature Descriptions
Chapter 6 FEATURE DESCRIPTIONS This chapter provides descriptions of many of the features incorporated in the Quantum Atlas 10K II Ultra 160/m SCSI hard disk drive family. KEY FEATURES Atlas 10K II Disk Drives provide unequaled quality and performance. They are designed to improve the performance of high-end workstations, file servers, and storage systems.
Page 303: Prefetch
If write-back caching is employed, it is recommended that an uninterruptible power source (UPS) be provided for optimal data security. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 304: Zero Latency Read/Write
This minimizes rotational latency (and increases throughput) when data is accessed sequentially. AVERAGE ACCESS TIME A 10,000 rpm rotation speed yields an average latency of 3.00 ms. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 305: Embedded Servo System
The hardware does not allow a blind read of a data block; the firmware must request specific data blocks. Even if the head selection hardware malfunctions, it is not possible for the drive to return data from the wrong head. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 306: Data Sector Reallocation Error Protection
Ordered - specifies that commands in the drive’s task set are to be executed in the order received (FIFO). The DQue bit (disable queuing) of the Control Mode page can be used to disable tagged command queuing. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 307: Command Reordering
Stagger Spin Delay – allows a series of drives to be spun up individually, reducing the load on the system power supply. 6.14 POWER MANAGEMENT The Quantum Atlas 10K II Ultra 160/m SCSI hard disk drives have three basic power states: OFF – power is removed from the drive.
Page 308: Diagnostics
If desired, calibrations can be suspended to reduce drive overhead by setting the Manual Calibration bit in the (Vendor) Special Function Control page. If this is done, manual calibrations can still be initiated by performing a REZERO UNIT command. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 309: Host Diagnostics
6.15.4 Log Sense Quantum implements multiple LOG SENSE pages which logically group together parameters related to disk and subsystem activities. Monitoring this data enables users to observe drive performance and possibly predict failures.
Page 310: Reallocation Of Bad Blocks
If the block’s data is unrecoverable, the block may or may not be replaced according to the state of the RUEE bit in the Quantum Vendor Unique Page. If the RUEE bit is set, the bad data is relocated with a Bad Data Mark appended to it. If the PER bit...
Page 311: Diffsens
+15 volts due to allowed common mode transients. CAUTION The LVD and HVD alternatives are mutually exclusive and damage may occur to SCSI devices if an LVD device is plugged into an operating HVD bus. 6-10 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 312: Diffsens Switching
DIFFSENS line. 6.17.3 DT AND ST CLOCKING With 160/m interface, Quantum has introduced a new method of clocking data on the SCSI bus. This method, called Double Transition (DT) clocking, uses both the rising and falling edges of the REQ and ACK signals to clock data into the receiving device.
Page 313: Cyclic Redundancy Checking
“Hot Swap” applications within a properly designed and configured SCSI system. With care, system integrators can design storage arrays and/or SCSI buses using Quantum Atlas 10K ii disk drives that are “Hot Swap Case 4” tolerant.
Page 314: System Considerations
15 pF drives presents no difficulty. A 30 pF drive inserted into a rack of 10 pF drives with very close connector spacing, however, is more likely to cause problems. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives 6-13...
Page 315 Feature Descriptions 6-14 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 316: Appendix A Quick Reference
I/O process task phase service queue task set queue full task set full simple queue tag simple Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives A–1...
Page 317 SET DEVICE IDENTIFIER START/STOP UNIT SYNCHRONIZE CACHE TEST UNIT READY VERIFY WRITE (6) WRITE (10) WRITE AND VERIFY WRITE BUFFER WRITE LONG WRITE MASK SKIP WRITE SAME XDREAD XDWRITE XPWRITE (continued) A–2 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 318 MESSAGE PARITY ERROR MESSAGE REJECT NO OPERATION ORDERED QUEUE TAG RELEASE RECOVERY SAVE DATA POINTER SIMPLE QUEUE TAG SYNCHRONOUS DATA TRANSFER REQUEST TARGET TRANSFER DISABLE WIDE DATA TRANSFER REQ. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives A–3...
Page 319 Unit Serial Number Vendor Part Number Vendor-Unique Caching 1A, 5A Verify Error Counter Verify Error Recovery 15, 55 Write Error Counter XOR Control 15, 55 * Not supported in SCSI-1/CSS mode A–4 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 320 VENDOR SPECIFIC ABORTED COMMAND MISCOMPARE Table A 5 SCSI-3 Quick Reference – Status Codes Status Codes Status Code - Hex GOOD CHECK CONDITION BUSY RESERVATION CONFLICT TASK SET FULL Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives A–5...
Page 321 Appendix A. Quick Reference A–6 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 322: Appendix B Scsi Reference Information
SCSI ID bit on the DATA BUS after it detects BUS FREE to enter ARBITRATION. Bus Settle Delay 400 ns Minimum time to wait for the bus to settle after changing certain control signals as defined in protocol definitions. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–1...
Page 323 The period range is 200 to 500 ns minimum, standard, or 100 to 500 ns minimum, fast-synchronous. Note: negotiated and set during an SDTR message. * Recommended time (continued) B–2 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 324 . Fast Negation Period 30 ns Minimum time that a drive negates REQ and the minimum time than an initiator negates ACK while using synchronous data transfers. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–3...
Page 325: Scsi-3 Bus Timing
Notes: 1 Cable Skew is measured at each device connection with the transmitted skew subtracted from the received skew. 2 This is a recommended time. It is not mandatory. B–4 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 326 4 SCSI bus timing values specified by the maximum transfer rate for the given range shall apply even if a slower transfer rate within the given range is negotiated. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–5...
Page 327 See SPI-3 specifications for examples of how to calculate setup and hold timing. SCSI bus timing values specified by the maximum transfer rate for the given range shall apply even if a slower transfer rate within the given range is negotiated. B–6 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 328 For DT data transfers the minimum time required at the receiving SCSI device between the transition (i.e. assertion or negation) of the REQ signal or the ACK signals and the changing of the DATA BUS while using synchronous data transfers. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–7...
Page 329 BSY signal in response. This time- out is required to ensure that a target or initiator does not assert the BSY signal after a SELECTION or RESELECTION phase has been aborted. B–8 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 330: Signal States
Winner: The signal is driven by the winning SCSI device. Targ: If the signal is driven, it is driven only by the active drive. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–9...
Page 331: Scsi Id Bits & Priorities
DB(9) – DB(8) – NOTE: A single bit is used to identify a device and define its priority on the SCSI bus. Highest priority (1) is at the top. B–10 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 332: Scsi Signals
An OR-tied signal that initiates a RESET condition. SEL (select) An OR-tied signal used by an initiator to select a target or by a target to reselect an initiator. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–11...
Page 333: Scsi Bus Phases
The drive can optionally prepare sense data that can be retrieved by a REQUEST SENSE Command. Bus Free Sequence 1. BSY and SEL signals are continuously false for one bus settle delay. B–12 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 334: Arbitration Phase
SEL signal. The winning SCSI device waits at least one bus clear delay plus one bus settle delay after asserting the SEL signal before changing any signals. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–13...
Page 335: Selection Phase
7. No less than two deskew delays after the initiator detects that the BSY signal has been asserted by the target/drive, it releases the SEL signal and can change the DATA BUS. B–14 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 336: Reselection Phase
1. Upon completing the ARBITRATION phase, asserts both the BSY and SEL signals. 2. Delays at least one bus clear delay plus one bus settle delay. 3. Asserts the I/O signal. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–15...
Page 337 2. The drive waits a for a total of a selection abort time plus two deskew delays. 3. The drive tests BSY. If it is asserted, the drive completes the reselection protocol. 4. If BSY is not asserted, the drive releases the SCSI bus. B–16 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 338: Information Transfer Phases
Table B-8. A True I/O Signal (1) indicates a transfer from the drive to the initiator. A False I/O Signal (0) indicates a transfer from the initiator to the drive. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–17...
Page 339: Asynchronous Data Transfer
7. Drive negates the REQ signal. 8. Initiator negates the ACK signal. 9. Drive can continue the transfer by driving the DB (7–0, P) signals and asserting the REQ signal (steps 1– 3). B–18 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 340: Synchronous Data Transfer
A transfer period from the last transition of the REQ signal to true. b.) A negation period from the last transition of the REQ signal to false. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–19...
Page 341 ACK signal unless an REQ/ACK offset greater than zero is used: a. A transfer period from the last transition of the ACK signal to true. b. A negation period from the last transition of the ACK signal to false. B–20 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 342: Wide Data Transfer
Wide data transfer is established by negotiations between the initiator and drive using the Wide Data Transfer Request message. The IWN bit in the Quantum (Vendor) Special Function Control page specifies which device (drive or initiator) is to initiate the negotiations.
Page 343 MESSAGE OUT phase and transfers at least one byte. The drive can also indicate that it has successfully received the message byte(s) by changing to the BUS FREE phase. B–22 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 344: Scsi Bus Conditions
After the drive has sent its IDENTIFY message for that RESELECTION phase. The initiator should only assert the ATN signal during a RESELECTION phase to transmit a TARGET RESET or DISCONNECT message. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–23...
Page 345: Reset Condition
MODE SELECT conditions are restored to their last saved values, if saved values have been established. MODE SELECT conditions for which no values have been saved are returned to their default values. 4. Sets unit attention condition. B–24 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 346 Reserved One-byte message (IDENTIFY) The drive supports the messages listed in Table B-11. The message code and the direction of the message flow is also included in the table. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–25...
Page 347 A value of 01h in the first byte indicates the beginning of a multiple-byte extended message. The extended message format is shown in Figure B-1 and the data fields are described in Table B-12. B–26 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 348 A value of 0 for the Extended Message Length indicates that 256 bytes follow. Extended Message Code The drive supports three Extended Messages. They are: SYNCHRONOUS DATA TRANSFER REQUEST WIDE DATA TRANSFER REQUEST PARALLEL PROTOCOL REQUEST Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–27...
Page 349: Supported Scsi Messages
Auto Contingent Allegiance conditions are not affected. An I_T_L nexus must exist for the drive to accept this message. After accepting this message, the drive goes to the BUS FREE phase. B–28 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 350: Disconnect Message (04H
The IDENTIFY message is sent by either the initiator or the drive to establish an I_T_L nexus with the drive, under the conditions listed below. Figure B-2 shows the format of the IDENTIFY message and Table B-14 describes the data field contents. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–29...
Page 351: Ignore Wide Residue Message (23H
SCSI bus activity. As shown in Table B-15, the drive’s response to and its handling of the message are based on when, in the task, the initiator introduces the message. B–30 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 352 BUS FREE phase. in either case, the drive sets the Sense Key to ABORTED COMMAND and sets the Additional Sense Code to INITIATOR DETECTED ERROR MESSAGE RECEIVED. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–31...
Page 353: Linked Command Complete Message (0Ah
After a drive sends a MESSAGE REJECT message, and if the ATN signal is still asserted, the drive returns to the MESSAGE OUT phase. The subsequent MESSAGE OUT phase begins with the first byte of a message. B–32 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 354: No Operation Message (08H
The type of queue tag specified affects the execution order of the commands. The tags specify the placement of a task in a task queue. The execution orders apply to commands from all initiators. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–33...
Page 355: Head Of Queue Tag Message (21H
The SAVE DATA POINTER message is sent from the drive to direct the initiator to copy the current data pointer to the saved data pointer for the current task. The message is sent prior to the drive performing a bus disconnect. B–34 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 356: Synchronous Data Transfer Request Message (01H
The format of the message fields are shown in Figure B-4 and described in Table b- Byte Extended Message (01h) (See Figure B–1) Extended Message Length (03h) SYNCHRONOUS DATA TRANSFER REQUEST code (01h) Transfer Period REQ/ACK Offset Figure B–4 SYNCHRONOUS DATA TRANSFER-Data Format Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–35...
Page 357: Target Reset Message (0Ch) (Bus Device Reset
The TASK COMPLETE message is sent by the drive to an initiator to indicate that a task has been completed and that valid status has been sent to the initiator. When B–36 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 358: Wide Data Transfer Request Message (03H
Byte Extended Message (01h) (See Figure B–1) Extended Message Length (02h) WIDE DATA TRANSFER REQUEST code (03h) Transfer Width Figure B–5 WIDE DATA TRANSFER REQUEST Message — Data Format Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–37...
Page 359 WIDE DATA TRANSFER REQUEST message exchange based on the Initiate Wide Negotiation Mode Bit (see the section of this manual that discusses the MODE SELECT command’s “Quantum-Unique Page,” [39h]). B–38 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 360: Parallel Protocol Request Message (04H
Bits 0 – 3 of byte 7 (IU_Req, DT_Req, and QAS_Req) are collectively known as the Protocol Option bits, and are defined as such in Table B-18. Figure B–6 PARALLEL PROTOCOL REQUEST Message — Data Format Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–39...
Page 361 ACK assertion is received at the target. The size of the data transfer will be 2 bytes. For best performance for an Atlas 10K IIdisk drive, the value of this field is 1Fh. (continued) B–40 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 362 Use DT data-in buffer transfers and DT data-out buffer transfers to transfer data. For best performance for an Atlas 10K II disk drive the value of Byte 7 should be 02h. Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives B–41...
Page 363 Appendix B. SCSI Bus Signal Timing B–42 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 364: Appendix C Negotiated Rate Information
Transfer period = the period factor x 4 (Fast-5 data is latched using a transfer period of less than or equal to 1020 ns and greater than or equal to 200 ns). Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives C–1...
Page 365: Settings For The Qas, Dt, And Iu Fields
Use DT DATA IN and DT DATA OUT phases with information unit transfers. Use DT DATA IN and DT DATA OUT phases with information unit transfers and use QAS for arbitration. C–2 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 366 —I— CONTINUE TASK Message, B-29 IDENTIFY Message, B-30 Control Mode Page, 5-76 IGNORE WIDE RESIDUE Message, B-31 Correction Span, 5-65, 5-67, 5-74 Immed, 5-28 Cylinder Number of Defect, 5-30, 5-146 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 367 REPORT DEVICE IDENTIFIER Command, 5-167 NO OPERATION Message, B-34 REPORT LUNS Command, 5-169 NO SENSE, 5-92, 5-171 REQUEST SENSE Command, 5-171 Non-operating Environment, 4-11 RESELECTION Phase, B-15 Normal commands, 5-3 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 368 TERMPWR (Ultra 160/m SCSI drives with 68-Pin Connector), 3-8 TEST UNIT READY Command, 5-211 Track Skew Factor, 5-105, 5-106 Translate Format, 5-161, 5-162, 5-204 Translated Address (Cylinder Number), 5-161 Translated Address (Head Number), 5-161 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 369: Index
Index Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives...
Page 371 500 McCarthy Blvd. Milpitas, CA 95035 (408) 894-4000 www.quantum.com June 8, 2000 81-122517-04...

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Atlas 10k ii

Quantum Atlas 10K II 9.2/18.4/36.7/73.4 GB Product Manual

Table of Contents

Table of Contents

Chapter 1 ABOUT this MANUAL

Chapter 2 GENERAL DESCRIPTION

Chapter 3 INSTALLATION

Chapter 4 SPECIFICATIONS

Chapter 5 SCSI DESCRIPTION

Chapter 6 FEATURE DESCRIPTIONS

Appendix A QUICK REFERENCE

Appendix B SCSI REFERENCE INFORMATION

Appendix C NEGOTIATED RATE INFORMATION

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Summary of Contents for Quantum Quantum Atlas 10K II 9.2/18.4/36.7/73.4 GB