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Seagate Medalist 2160N (ST52160N) Product Manual

Medalist pro series scsi interface drives
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Summary of Contents for Seagate Medalist 2160N (ST52160N)

  • Page 1 ......... . Medalist Pro Family .
  • Page 3 ......... . Medalist Pro Family .
  • Page 4 Seagate Technology, Inc. Other product names are trademarks or registered trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. No part of this publication may be reproduced in any form without written permission from Seagate Technology, Inc.

  • Page 5: Table Of Contents

    Medalist Pro 2160N/ 2160WC Product Manual, Rev. A Contents Introduction ......1 Specifications summary table .
  • Page 6 Medalist Pro 2160N/ 2160WC Product Manual, Rev. A 2.1 SCSI-3 compatibility ..... 17 2.2 Handling and static-discharge precautions ..17 2.3 Electrical interface .
  • Page 7 Medalist Pro 2160N/ 2160WC Product Manual, Rev. A 3.4.6 Read (6) command (08 ) ....45 3.4.7 Write (6) command (0A ) ....46 3.4.8 Seek (6) command (0B ) .
  • Page 8 Medalist Pro 2160N/ 2160WC Product Manual, Rev. A 3.11 Group 3 and 4 commands ....85 3.12 Group 5 and 6 commands ....85 3.13 Group 7 commands .
  • Page 9 Medalist Pro 2160N/ 2160WC Product Manual, Rev. A Figures Figure 1. Typical startup current profile ....7 Figure 2. Single-ended transmitter and receiver ...18 Figure 3.

  • Page 11: Introduction

    The Medalist Pro 2160WC is referred to in this manual by its model number ST52160WC. This drive comes with the 80-pin blindmate single-connector attachment (SCA-2). Seagate desktop products take a step into the future with the ST52160N and ST52160WC. These drives feature MR heads and PRML recording technology.
  • Page 12 Medalist Pro 2160N/ 2160WC Product Manual, Rev. A The following is a summary of the drives’ features: Capacity 2.17 Gbytes, guaranteed Features SCSI-3 SPI and SCAM Plug and Play compliant 8-bit and 16-bit UltraSCSI Transfer rates up to 20 Mbytes and 40 Mbytes per second 11-msec average seek time 5,379-RPM rotational speed 5.56 average latency...

  • Page 13: Specifications Summary Table

    Medalist Pro 2160N/ 2160WC Product Manual, Rev. A Specifications summary table The following table serves as a quick reference for the drives’ perform- ance specifications. These and other specifications are discussed in the Specifications summary section following the table. Drive specification ST52160N ST52160WC Guaranteed capacity (Gbytes, 10...
  • Page 14 Medalist Pro 2160N/ 2160WC Product Manual, Rev. A Drive specification ST52160N ST52160WC Read/Write power (typical) 6.3W 6.3W Idle power (typical) 6.2W 6.2W Voltage tolerance (including noise): +5V Voltage tolerance (including noise): +12V Ambient temperature, operating (C°) 5° to 55°C 5° to 55°C Temperature gradient, operating (°C per hour max) 20°C...

  • Page 15: Specifications Summary

    Medalist Pro 2160N/ 2160WC Product Manual, Rev. A 1.0 Specifications summary 1.1 Formatted capacity The capacities specified here do not include spare sectors and cylinders. The media contains 2,000 spare blocks at the end of the volume. Guaranteed capacity (Gbytes 2.17 Guaranteed sectors 4,238,282...

  • Page 16: Physical Dimensions

    Medalist Pro 2160N/ 2160WC Product Manual, Rev. A 1.4 Physical dimensions Height (max) 0.748 inches (19 mm) Width (max) 4.01 inches (101.8 mm) Depth (max) 5.38 inches (136.6 mm) Weight (max) 1.0 lb. (0.45 Kg) 1.5 Seek time All seek time measurements are taken under nominal conditions of temperature and voltage with the drive mounted horizontally.

  • Page 17: Read Look-Ahead And Caching

    Medalist Pro 2160N/ 2160WC Product Manual, Rev. A Read look-ahead and caching The drives use algorithims that improve seek performance by storing data in a buffer and processing it at a more convenient time. Three methods are used: read look-ahead, read caching and write caching. These are described in Appendix C.6 on page 108.

  • Page 18: Power-Down Sequence

    Medalist Pro 2160N/ 2160WC Product Manual, Rev. A 3. Within 250 msec after power is applied, the drive responds to the Test Unit Ready, Request Sense, Mode Sense and Inquiry commands. 4. The drive begins to lock in speed-control circuits. 6.

  • Page 19: Power Consumption

    Medalist Pro 2160N/ 2160WC Product Manual, Rev. A Seek. The servo electronics are active, and the heads are moving to a specific location on the disc. The read/write electronics are powered- down. The power consumed in this mode is equivalent to the average power measured while executing random seeks with a 2-revolution (26.6 msec) dwell between seeks.

  • Page 20: Input Noise

    Medalist Pro 2160N/ 2160WC Product Manual, Rev. A 1.8.3 Input noise +12V Voltage tolerance (including noise) Input noise frequency 25 MHz 25 MHz (max) Input noise 100 mV 240 mV (max, peak-to-peak) 1.9 Environmental This section specifies acceptable environmental conditions for the drives. The operating specifications assume that the drive is powered up.

  • Page 21: Relative Humidity

    Medalist Pro 2160N/ 2160WC Product Manual, Rev. A 1.9.4 Relative humidity Operating 8% to 80% noncondensing Maximum wet bulb 29.4°C (84.9°F) Operating gradient, max 10% per hour Nonoperating 5% to 95% noncondensing Maximum wet bulb 35°C (95.0°F) 1.10 Shock and vibration All shock and vibration specifications assume that the inputs are measured at the drive mounting screws.

  • Page 22: Acoustics

    Medalist Pro 2160N/ 2160WC Product Manual, Rev. A 1.11 Acoustics This table shows the overall A-weighted sound power and sound pres- sure levels for the drives. All measurements are generally consistent with ISO document 7779. Acoustic measurements are taken under essen- tially free-field conditions over a reflecting plane.

  • Page 23: Electromagnetic Compliance For The European Union

    3.5-inch floppy disc drive Keyboard Monitor/display Although the test system with this Seagate model complies to the directives, we cannot guarantee that all systems will comply. The com- puter manufacturer or system integrator will confirm EMC compliance and provide CE Marking for their product. The drive is not meant for external uses (without properly designed enclosure, shielded I/O cable, etc.), and a terminator should be used on all unused I/O ports.
  • Page 24 Medalist Pro 2160N/ 2160WC Product Manual, Rev. A Radio and television interference. This equipment generates and uses radio frequency energy and, if not installed and used in strict accordance with the manufacturer’s instructions, may cause interference to radio and television reception. This equipment is designed to provide reasonable protection against such interference in a residential installation.
  • Page 25 Medalist Pro 2160N/ 2160WC Product Manual, Rev. A Sicherheitsanleitung 1. Das Gerrät ist ein Einbaugerät, das für eine maximale Umgebung- stemperatur von 55°C vorgesehen ist. 2. Zur Befestigung des Laufwerks werden 4 Schrauben 6-32 UNC-2A benötigt. Bei seitlicher Befestigung darf die maximale Länge der Schrauben im Chassis nicht mehr als 5,08 mm und bei Befestigung an der Unterseite nicht mehr als 5,08 mm betragen.
  • Page 26 Medalist Pro 2160N/ 2160WC Product Manual, Rev. A...

  • Page 27: Hardware And Interface

    20 Mbytes per second and synchronous transfer rates up to 40 Mbytes per second. 2.1 SCSI-3 compatibility The drive interface is described in the Seagate SCSI-2 /SCSI-3 Interface Manual, publication number 77738479. The drives comply with the mandatory subset of the ANSI SCSI-2 Interface. The Fast SCSI-3 interface is based on the ANSI Small Computer System Interface-2 (SCSI-2), document number ANSI X3.131-1994.

  • Page 28: Electrical Interface

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Always rest the drive on a padded, antistatic surface until you mount it in the host system. Do not touch the connector pins or the printed circuit board. Do not remove the factory-installed labels from the drive or cover them with additional labels.

  • Page 29: Interface And Connector Configuration

    Medalist Pro 2160N/2160WC Product Manual, Rev. A ST52160WC Options Jumper Block (J5) SCA-2 Interface connector ST52160N Options Jumper Block (J5) 50-Pin Interface connector Standard Pin 1 power connector Circuit board 5V return +12V return +12V Figure 3. Connectors 2.4 Interface and connector configuration The ST52160N and ST52160WC drives are differentiated by their con- nectors.

  • Page 30: St52160N Interface Connector

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 2.5 ST52160N interface connector The ST52160N uses a standard 50-pin, nonshielded, keyed connector. The connector consists of two rows of 25 male contacts 0.100 inches apart. Pin 1 on the connector is shown in Figure 3 on page 19. Recom- mended mating connectors and their part numbers are listed below.

  • Page 31: St52160N Interface Pin Assignments

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 2.5.1 ST52160N interface pin assignments The table below shows the pin assignment for the ST52160N 50-pin interface connector. A minus sign ( ) indicates an active-low signal. Signal Ground Signal name pin number pin number –DB(0) –DB(1)

  • Page 32: St52160Wc Interface Connector

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 2.5.2 ST52160WC interface connector The ST52160WC uses an 80-pin blindmate single-connector attachment (SCA-2). It is a single-piece connector that provides power to the drive through the SCSI bus. The remote LED, motor start options and addi- tional binary codes are also placed on the SCSI bus.
  • Page 33 Medalist Pro 2160N/2160WC Product Manual, Rev. A Connector Cable Connector Signal Name Signal Name Contact Conductor Contact Number (3) Number (3) –ATN –DBP –DB7 –DB6 –DB5 –DB4 –DB3 –DB2 –DB1 –DB0 –DP1 –DB15 –DB14 –DB13 –DB12 +5 V Mated 2 +5 V 5V GND +5 V...
  • Page 34 Medalist Pro 2160N/2160WC Product Manual, Rev. A Notes: 1. See Section 2.3 on page 18 for detailed electrical charac- teristics of these signals. 2. The conductor number refers to the conductor position when using 0.025-inch (0.635 mm) centerline flat-ribbon cables. You can use other cable types to implement equivalent con- tact assignments.

  • Page 35: Interface Cable Requirements

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 2.6 Interface cable requirements A characteristic impedance of 100 ohms + 10% is recommended for the unshielded flat or twisted-pair interface cable. However, most available cables have a somewhat lower characteristic impedance. To minimize discontinuities and signal reflections, do not use cables of different impedances on the same bus.

  • Page 36: Options Jumper Block

    The options jumper block accepts 2-mm jumpers. If you need additional jumpers, use the jumpers listed below or equivalent. Manufacturer Part number Seagate 13211-001 Du Pont 89133-001 Methode 8618-202-70 2.7.1 SCSI address...

  • Page 37: Figure 4. St52160N Jumper Settings

    Medalist Pro 2160N/2160WC Product Manual, Rev. A ST52160N Options jumper block (J5) Drive oriented with 5 7 9 11 circuit board side down SCSI ID 0 SCSI ID 1 SCSI ID 2 SCSI ID 3 SCSI ID 4 SCSI ID 5 SCSI ID 6 SCSI ID 7 SCSI Parity...

  • Page 38: Figure 5. St52160Wc Jumper Settings

    Medalist Pro 2160N/2160WC Product Manual, Rev. A ST52160WC Options jumper block (J5) Drive oriented with 5 7 9 11 circuit board side down SCSI ID 0 SCSI ID 1 SCSI ID 2 SCSI ID 3 SCSI ID 4 SCSI ID 5 SCSI ID 6 SCSI ID 7 SCSI ID 8...

  • Page 39: Active Termination

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 2.8 Active Termination Active termination is configured on the ST52160N using pins 11 and 12 on the J5 options jumper block. Active termination is enabled when there is no jumper on pins 11 and 12. Active termination is disabled when a jumper is placed on pins 11 and 12.

  • Page 40: Hot-Plugging

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Devices at both ends of the SCSI bus must be terminated; intermediate devices should not be terminated. All electrical signals are common between all SCSI devices. 2.11 Hot-plugging Hot-plugging allows you to connect and disconnect the I/O and power cables for each SCSI device in a daisy chain without powering down the system.
  • Page 41 Medalist Pro 2160N/2160WC Product Manual, Rev. A Caution. To avoid damaging the drive: Use only mounting screws of the type specified. Gently tighten the mounting screws—do not apply more than 6 inch-lb of torque.

  • Page 42: Figure 6. St52160N Mounting Dimensions

    Medalist Pro 2160N/2160WC Product Manual, Rev. A In the following figures, all dimensions are in inches and millimeters (mm). Six 6-32 NC-2B threaded hole Max screw insertion depth: 0.20 inches 0.748 max (19.000) 2.362 ± 0.010 0.250 ± 0.010 (59.995. ± 0.254) (6.350 ±...

  • Page 43: Figure 7. St52160Wc Mounting Dimensions

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Six 6-32 NC-2B threaded hole Max screw insertion depth: 0.20 inches 0.748 max (19.000) 2.362 ± 0.010 0.250 ± 0.010 (59.995. ± 0.254) (6.350 ± 0.254) 0.240 ± 0.020 (6.096 ± 0.508) 4.000 ± 0.010 (101.60 ± 0.254) 1.120 (28.448) 5.380 max (136.165) 1.985 ±...
  • Page 44 Medalist Pro 2160N/2160WC Product Manual, Rev. A...

  • Page 45: Command Set

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 3.0 Command set The drives support a subset of the Group 0, Group 1 and Group 2 standard SCSI commands. The commands are described in this section. 3.1 Command descriptor block The initiator makes a request to the drive by sending a command descriptor block (CDB) to the drive.

  • Page 46: Supported Commands

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Reservation conflict status. A SCSI device tried to access the drive, but was unable to because the drive was already reserved by another SCSI device. Queue full status. The drive received a command but rejected it because the queue was full.

  • Page 47: Group 0 Commands

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Group 1 commands Operation code Verify Read Defect Data Write Data Buffer Read Data Buffer Read Long Write Long Group 2 commands Log Select Log Sense Reserve (10) Release (10) 3.4 Group 0 commands 3.4.1 Test Unit Ready command (00 The Test Unit Ready command verifies that the drive is ready;...

  • Page 48: Rezero Unit Command (01 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 3.4.2 Rezero Unit command (01 The Rezero Unit command retracts the read/write heads to the cylinder containing logical block zero. Bits Bytes 3.4.3 Request Sense command (03 The Request Sense command requests the drive to transfer sense data to the initiator in the additional sense data format.

  • Page 49: Format Unit Command (04 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Bits Bytes Allocation length Byte 4 The allocation length specifies the maximum number of bytes the initiator has allocated for returned sense data. The drive returns the number of bytes specified by the allocation length up to 22 bytes.
  • Page 50 Medalist Pro 2160N/2160WC Product Manual, Rev. A Bytes 3–4 The interleave field is not supported. It can contain any value. However, the drive always formats the disc with an interleave of 1:1. 3.4.4.1 Defect lists When the Format Unit command is issued, media defect information can be gathered from several sources.
  • Page 51 Medalist Pro 2160N/2160WC Product Manual, Rev. A Byte 1 of CDB Bit 4 Bit 3 Bit 2–Bit 0 Description Defect List Data Format Default format . The initiator does not send the defect list header or DList to the drive. The drive reallocates all sectors in the PList and GList.
  • Page 52 Medalist Pro 2160N/2160WC Product Manual, Rev. A 3.4.4.3 Defect list header and defect list The defect list, shown below, contains a 4-byte header, followed by one or more defect descriptors. Byte 1 of the defect list header determines whether the P and C defects are reallocated. Bits Bytes FOV DPRY DCRT STPF...

  • Page 53: Reassign Blocks Command (07 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 3.4.4.4 Defect descriptor—physical sector format Defects are specified in the physical sector format when the defect list format field is 101 See Byte 1 of the Format Unit command in Sec- tion 3.4.4. on page 39. Each defect descriptor for the physical sector format specifies a sector- size defect location that is composed of the cylinder number of the defect, the head number of the defect and the defect sector number.
  • Page 54 Medalist Pro 2160N/2160WC Product Manual, Rev. A Bits Bytes 3.4.5.1 Reassign Blocks defect list The Reassign Blocks defect list contains a 4-byte header followed by one or more defect descriptors. The length of each defect descriptor is 4 bytes. Bits Bytes 2–3 Defect list length...

  • Page 55: Read (6) Command (08 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 3.4.6 Read (6) command (08 When the drive receives the Read command, it transfers data to the initiator. The Read-Write Error Recovery page (01 ) determines how the drive handles errors during a Read command. The Read-Write Error Recovery page is discussed in Appendix C.1 on page 98.

  • Page 56: Write (6) Command (0A H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 3.4.7 Write (6) command (0A When the drive receives the Write command, it writes the initiator’s data to the disc. The Read-Write Error Recovery page (01 ) determines how the drive handles bad sectors during a Write command. The Read-Write Error Recovery page is discussed in Appendix C.1 on page 98.

  • Page 57: Seek (6) Command (0B H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 3.4.8 Seek (6) command (0B When the drive receives the Seek command, it seeks to the track of the specified logical block address. This command is not necessary because all commands that access the disc contain implied seeks. In systems that support disconnection, the drive disconnects when it receives a valid Seek command.

  • Page 58: Mode Select (6) Command (15 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Bits Bytes Reserved EVPD Page code Allocation length, in bytes Byte 1 If the enable vital product data (EVPD ) bit is zero, the drive returns the standard inquiry data. If the EVPD bit is one, the drive returns the optional vital product data specified in byte 2.
  • Page 59 Medalist Pro 2160N/2160WC Product Manual, Rev. A Default values copy. This copy contains the parameter values the drive used as its current values when it was manufactured. The drive defaults to these values after a reset condition, unless valid saved values are available.
  • Page 60 Medalist Pro 2160N/2160WC Product Manual, Rev. A Byte 1 The page format (PF) bit is always one. This means that the data sent by the initiator after the mode select header and block descriptors complies with the page format. When the save pages (SP) bit is 1, the drive saves the savable pages in nonvolatile memory.

  • Page 61: Reserve (6) Command (16 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Byte 1 The medium type field is always 00 , which means that the drive is a direct-access device. If the block descriptor length is 8 bytes, a block descriptor Byte 3 is sent to the drive. If the block descriptor length is 0 bytes, no block descriptor is sent to the drive.

  • Page 62: Release (6) Command (17 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Bits Bytes 3rd pty 3rd party device ID Extent Byte 1 If the 3rd pty bit is 0, the initiator reserves the drive for itself. If the 3rd pty bit is 1, the initiator reserves the drive for another initiator.

  • Page 63: Mode Sense (6) Command (1A H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A that it made. The SCSI ID of the third-party initiator is specified in the 3rd party device ID field. The extent bit must always be 0. The drive does not support extent reservations. If the extent bit is 1, the drive generates a check condition status.
  • Page 64 Medalist Pro 2160N/2160WC Product Manual, Rev. A transferred. This condition is not considered an error. Any other value represents the number of bytes to be transferred. For a description of the allocation length, see Section 3.4.13.1. 3.4.13.1 Page code and allocation length The Mode Sense command descriptor block contains a page code (byte 2, bits 5–0) and an allocation length (byte 4).
  • Page 65 Medalist Pro 2160N/2160WC Product Manual, Rev. A Page Allocation Mode Sense data returned code length 4 bytes of Mode Sense header 8 bytes of block descriptor 2 bytes of mode-page header 10 bytes of Control Mode page parameters bytes of Mode Sense header bytes of block descriptor bytes of mode-page header bytes of Unit Attention Page parameters...

  • Page 66: Start/Stop Unit Command (1B H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Byte 3 The block descriptor length is the number of bytes in the block descriptor. This value does not include the page headers and mode pages that follow the block descriptor, if any. Byte 4 The density code is not supported.

  • Page 67: Receive Diagnostic Results Command (1C H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 3.4.15 Receive Diagnostic Results command (1C When the drive receives the Receive Diagnostics command after power- up or after a Send Diagnostic command of PF=0, it sends eight diagnostic data bytes to the initiator. The drive supports the optional Page format wherein the initiator sends additional pages after a Send Diagnostic command.

  • Page 68: Supported Diagnostic

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Byte 6 The diagnostic error code is not supported. The vendor-unique error codes are listed in Section Byte 7 3.4.15.2. 3.4.15.2 Diagnostic error codes The following diagnostic error codes are reported in byte 7 of the diagnostic data format in Section 3.4.15.1.

  • Page 69: Translate Address Page

    Medalist Pro 2160N/2160WC Product Manual, Rev. A ning with page code 00 . The drive supports only pages 00 and 40 3.4.17 Translate Address Page The translate address page allows the initiator to translate a logical block address into a physical sector address or a physical sector address into a logical block address.
  • Page 70 Medalist Pro 2160N/2160WC Product Manual, Rev. A lated address. A RAREA bit of zero indicates that no part of the translated address falls within a reserved area of the me- dium. 5. An alternate sector (ALTSEC) bit of 1 indicates that the trans- lated address is physically located in an alternate sector of the medium.

  • Page 71: Send Diagnostic Command (1D H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Address Field Physical Sector Format Bits Bytes 4–7 Sector Number 3.4.18 Send Diagnostic command (1D When the drive receives this command, it performs diagnostic tests on itself. In systems that support disconnection, the drive disconnects while executing this command.

  • Page 72: Supported Diagnostics Page-Send Diagnostics

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 3.5 Supported Diagnostics Page—Send Diagnostics This page contains instructions for the drive to make available the list of all supported diagnostic pages to be returned by a subsequent Receive Diagnostics Results command. The definition of this page includes only the first 4 bytes.

  • Page 73: Read Capacity Command (25 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Notes: 1. The Supplied Format field specifies the format of the address to translate field. The valid values for this field are 000 for logical block address format or 101 for physical sector address format.

  • Page 74: Read (10) Command (28 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Bytes 2–5 The logical block address specified in the CDB cannot be greater than the logical block address reported by the drive in the read capacity data else check condition. Byte 8 If the partial medium indicator (PMI) bit is zero, the logical block address in the CDB is also zero.

  • Page 75: Write (10) Command (2A H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Bits Bytes 2–5 Logical block address 7–8 Transfer length Byte 1 If the disable page out (DPO) bit is 1, the cached data that the drive receives during this command has the lowest priority for being retained in the cache.

  • Page 76: Seek (10) Command (2B H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Bits Bytes 2–5 Logical block address 7–8 Transfer length Byte 1 If the disable page out (DPO) bit is 1, the cached data that the drive receives during this command has the lowest priority for being retained in the cache.

  • Page 77: Write And Verify Command (2E H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Bits Bytes 2–5 Logical block address 3.6.5 Write and Verify command (2E When the drive receives the Write and Verify command, it writes the data sent by the initiator to the media and then verifies that the data is correctly written.

  • Page 78: Verify Command (2F H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 3.6.6 Verify command (2F When the drive receives the Verify command, it verifies the data on the disc. If the host adapter supports disconnection, the drive disconnects while it is executing this command. Bits Bytes 2–5...
  • Page 79 Medalist Pro 2160N/2160WC Product Manual, Rev. A Bits Bytes PList GList Defect list format 7–8 Allocation length Byte 2 If the PList bit is 1, the drive sends the primary defect list. If the PList bit is 0, the drive does not send the primary defect list.

  • Page 80: Write Data Buffer Command (3B H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 3.6.7.1 Defect list header The defect data always begins with a 4-byte header, followed by an 8-byte descriptor for each defect. The defect list header format is described below. Bits Bytes PList GList Defect list format 2–3 Defect List Length...
  • Page 81 Medalist Pro 2160N/2160WC Product Manual, Rev. A Bits Bytes Mode Buffer ID (00 3–5 Buffer offset 6–8 Parameter list length Byte 1 If the mode bits contain 000 , the initiator transfers data to the drive buffer with a 4-byte header that contains all zeros. This mode is called write combined header and data .

  • Page 82: Read Data Buffer Command (3C H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 3.6.9 Read Data Buffer command (3C The Read Data Buffer command supports several different features. The Read Data Buffer command can be used along with the Write Data Buffer command to diagnose problems in the drive’s data buffer memory and to test the integrity of the SCSI bus.
  • Page 83 Medalist Pro 2160N/2160WC Product Manual, Rev. A The offset boundary field returns the boundary alignment within the selected buffer for subsequent WRITE BUFFER and READ BUFFER commands. The value contained in the offset boundary field shall be interpreted as a power of two. Buffer Offset Boundary Offset Boundary 20 Offset Boundary...

  • Page 84: Read Long Command (3E H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 3.6.10 Read Long command (3E When the drive receives the Read Long command, it transfers data to the initiator. Bits Bytes 2–5 Logical block address 7–8 Byte transfer length Bytes 2–5 The logical block address specifies the LBA where the drive begins reading data.

  • Page 85: Group 2 Commands

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Bytes 7–8 The byte transfer length specifies the number of bytes the initiator transfers to the drive. If the transfer length does not equal the sum of the logical block size plus twenty, the command is terminated with a check condition status.
  • Page 86 Medalist Pro 2160N/2160WC Product Manual, Rev. A REQUEST and the additional sense code will be set to INVALID FIELD IN CDB. If the PCR bit is set to 0, the log parameters will not be reset. The save parameters (SP) bit determines whether the drive will save to nonvolatile memory all parameters indentified as savable in the disable save (DS) bit of the log page after a Log Select operation completes.
  • Page 87 Medalist Pro 2160N/2160WC Product Manual, Rev. A If multiple log pages are sent to the data buffer, they should be sent in ascending order by page code. If there are multiple parameters within a page, they should be sent in ascending order by parameter code.
  • Page 88 Medalist Pro 2160N/2160WC Product Manual, Rev. A Byte 0 The page code is the code assigned to an attribute the drive monitors. It specifies the log page that is being transferred. The page codes the drives support are listed and described below: Page Description...
  • Page 89 Medalist Pro 2160N/2160WC Product Manual, Rev. A Parameter Code 03 — Total Errors Corrected. This counter counts the total of all correctable errors encountered. It is the sum of the counters specified by parameter codes 01 and 02 . There is no double counting of data errors among these two counters and all correctable data errors are counted in one of these counters.
  • Page 90 When TSD is 0, the drive saves at a frequency determined by Seagate. When TSD is 1, the drive does not automatically save. When the enable threshold comparison (ETC) bit is 1, the...
  • Page 91 Medalist Pro 2160N/2160WC Product Manual, Rev. A time the cumulative value is updated. When the ETC bit is 0 no comparison is made. The ETC bit value is the same for both the threshold and cumulative values. The threshold met criteria (TMC) bit defines the basis for comparison of the cumulative and threshold values.

  • Page 92: Log Sense Command (4D H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A length value that causes the parameter value to truncate, the drive terminates the command with a Check Condition status. The sense key is set to Illegal Request with addi- tional sense code set to Invalid Field Parameter List. B B yte 4 The parameter value field uses 1, 2, 4 or 8 bytes to transmit an unsigned counter value.

  • Page 93: Reserve (10) Command

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 3.9 Reserve (10) command (56 The Reserve (10) command is used to reserve a logical unit. The 3rd Party reservation allows logical units to be reserved for another specified SCSI device. Bits Bytes Operation Code (56 Logical Unit Number Party...

  • Page 94: Release (10) Command

    Medalist Pro 2160N/2160WC Product Manual, Rev. A 3.10 Release (10) command (57 The Release (10) command is used to release a previously reserved logical unit. It is not an error for an initiator to attempt to release a reservation that is not currently valid. In this case, the drive returns a GOOD status without altering any other reservation.

  • Page 95: Medalist Pro 2160N/2160Wc Product Manual, Rev. A

    Group 5 and 6 commands are 12-byte commands. Group 5 commands are not implemented. If the drive receives a Group 5 command, it returns a check condition status. Group 6 commands are reserved for Seagate use. Caution. Do not use Group 6 commands. If you do, you may destroy data on the disc.
  • Page 96 Medalist Pro 2160N/2160WC Product Manual, Rev. A...

  • Page 97: Appendix A. Supported Messages

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Appendix A. Supported messages A.1 Messages The implemented 1- and 2-byte messages are listed below. Must negate ATN Code Message name Direction before last ACK? Abort Abort tag Bus device reset Clear queue Command complete —...

  • Page 98: Synchronous Data Transfer Request Message (01 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A A.2 Synchronous Data Transfer Request message The synchronous Data Transfer Request message is an extended mes- sage. Depending on the value contained in the SSM bit (contained in byte 2 of the Operating page in Appendix D.2.2. on page 121), the drive or the initiator can negotiate for synchronous data transfer after a reset.

  • Page 99: Wide Data Transfer Request Message

    Medalist Pro 2160N/2160WC Product Manual, Rev. A A.2.1 Wide Data Transfer Request Message Bits Bytes Extended message (01 Extended message length (02 Wide Data Transfer Request code (03 Transfer Width Exponent The originating SCSI device (the SCSI device that sends the first pair of WDTR messages) sets its transfer value to the maximum data path it chooses to accommodate.
  • Page 100 Medalist Pro 2160N/2160WC Product Manual, Rev. A...

  • Page 101: Appendix B. Sense Data

    The appendix contains the descriptions for sense data returned by the Request Sense command. For more information on the Request Sense command, see the Seagate SCSI-2/3 Interface Manual Volume 2; Ver- sion 2 , publication number 77738479-F. B.1 Additional sense data When the initiator issues a Request Sense command, the drive returns the following additional sense data.
  • Page 102 Medalist Pro 2160N/2160WC Product Manual, Rev. A Byte 2 If the incorrect length indicator (ILI) bit is zero, the re- quested block of data from the previous command did not match the logical block length of the data on the disc. If the ILI bit is one, the requested block of data from the previous command matched the logical block length of the data on the disc.

  • Page 103: Sense Key

    Unit attention. The drive may have been reset. See the Seagate SCSI-2 Interface Manual for more details about the Unit Attention condition. Aborted command. The drive aborted the command. The initiator may be able to recover by retrying.

  • Page 104: Additional Sense Code And Additional Sense Code Qualifier

    Medalist Pro 2160N/2160WC Product Manual, Rev. A B.3 Additional sense code and additional sense code qualifier The additional sense code and additional sense code qualifiers returned in byte 12 and byte 13, respectively, of the Sense Data Format of the Request Sense command are listed in the following table.
  • Page 105 Medalist Pro 2160N/2160WC Product Manual, Rev. A Error code (hex) Byte 12 Byte 13 Description Error in PList Error in GList A parameter overrun occurred. The defect list could not be found. The primary defect list could not be found. GList not found A miscompare occurred during a verify operation.
  • Page 106 Medalist Pro 2160N/2160WC Product Manual, Rev. A Error code (hex) Byte 12 Byte 13 Description Target operating conditions have changed Buffer parity error detected Error in write to flash. A message error occurred. An internal controller error occurred. A SCSI bus parity error occurred. The initiator detected an error.

  • Page 107: Appendix C. Mode Pages

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Appendix C. Mode pages Mode pages are groups of parameters that the drive stores. These parameters can be read using the Mode Sense command and changed using the Mode Select command. These commands are described in Sections 3.4.10 and 3.4.13.

  • Page 108: Read-Write Error Recovery Page (01H)

    Medalist Pro 2160N/2160WC Product Manual, Rev. A All mode pages contain a 2-byte header that contains the page code and the page length for that particular page. The header is shown below. Bits Bytes Page code changeable Page length changeable Byte 0 During the Mode Sense command, the PS (parameter savable) bit is 1, which means the mode page is saved on the disc.
  • Page 109 Medalist Pro 2160N/2160WC Product Manual, Rev. A continued from previous page Bits Bytes 7 (default) Reserved (00 changeable 8 (default) Write retry count (20 changeable 9 (default) Reserved (00 changeable 10–11 (default) Recovery time limit (FFFF changeable 0000 Byte 2 When the automatic write reallocation enabled (AWRE) bit is 1, the drive automatically reallocates bad blocks detected while writing to the disc.

  • Page 110: Disconnect/Reconnect Page (02 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A The post error (PER) bit is not supported. The disable transfer on error (DTE ) bit is not supported. The disable correction ( DCR ) bit is not supported. Byte 3 The read retry count field is the maximum number of times the drive attempts its recovery algorithms.
  • Page 111 Medalist Pro 2160N/2160WC Product Manual, Rev. A continued from previous page 6–7 (default) Disconnect time limit (0000 changeable 0000 8–9 (default) Connect time limit (0000 changeable 0000 10–11 (default) Reserved (0000 changeable 0000 12–15 (default) Reserved (00000000 changeable 00000000 Byte 2 The buffer full ratio field indicates, on Read commands, how full the drive’s buffer is before reconnecting.

  • Page 112: Format Device Page (03 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A C.3 Format Device page (03 The Format Device page is shown below. This table summarizes the function, the default value and the changeability of each bit. Bits Bytes PS (1) Page code (03 Page length (16 2–3 (default) Tracks per zone (0000...
  • Page 113 Medalist Pro 2160N/2160WC Product Manual, Rev. A Bytes 2–3 The tracks per zone field indicates the number of tracks the drive allocates to each defect-management zone. Spare sectors or tracks are placed at the end of each defect- management zone. If each zone is treated as containing one track, the valid value for tracks per zone is 1.

  • Page 114: Rigid Disc Geometry Page (04 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A The default value is 0024 , which is the track skew factor for the first zone. Bytes 18–19 The cylinder skew factor field indicates the number of physical sectors between the last logical block of one cylinder and the first logical block of the next cylinder.

  • Page 115: Default

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Bits Bytes default 000000 changeable 000000 9–11 Starting cylinder for reduced write current default 000000 changeable 000000 12–13 (default) Drive step rate (0000 changeable 0000 14–16 (default) Loading zone cylinder (000000 changeable 000000 17 (default) Reserved (00 changeable...
  • Page 116 Medalist Pro 2160N/2160WC Product Manual, Rev. A loading zone cylinder bytes are not supported by the drive. Byte 17 Reserved. RPL is not supported. Byte 18 The rotational offset is not supported. Byte 19 Reserved Bytes 20–21 The medium rotation rate is the spindle speed. Bytes 22–23 Reserved...

  • Page 117: Verify Error Recovery Page (07 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A C.5 Verify error recovery page (07 The verify error recovery page specifies the error-recovery parameters the target uses during the Verify command and the verify operation of the Write and Very commands. Bits Bytes RSVD PS (1)

  • Page 118: Caching Page (08 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A tion before other retry mechanisms, but does not perform T>1 corrections on-the-fly; any successful correction is reported to the host as a recovered error. The post error (PER) bit is not supported. The disable transfer error (DTE) bit is not supported. The disable correction (DCR) bit is not supported.

  • Page 119: Write Caching And Write Merging

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Number of segments Size of segment (in Kbytes) When the buffer is divided into multiple segments, each segment func- tions as an independent buffer, causing dramatically increased perform- ance in multitasking and multiuser environments at the expense of poorer performance commands with long transfer lengths.

  • Page 120: Caching

    Medalist Pro 2160N/2160WC Product Manual, Rev. A C.6.3 Caching page description The Caching page is shown below. This table summarizes the function, the default value and the changeability of each bit. Bits Bytes PS (1) Page code (08 Page length (12 ABPF CAP DISC SIZE WCE default changeable...
  • Page 121 Medalist Pro 2160N/2160WC Product Manual, Rev. A Byte 2 The initiator control (IC) bit is not supported. When the abort prefetch (ABPF) bit is 0, the drive controls completion of prefetch. See the description for the DISC bit below. This is the default value and it is not change- able.
  • Page 122 Medalist Pro 2160N/2160WC Product Manual, Rev. A drive terminates prefetching whenever another command is ready to be executed. If the minimum prefetch equals the maximum prefetch, the drive prefetches the same number of blocks regardless of whether there are com- mands pending.

  • Page 123: Control Mode Page (0A H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A C.7 Control Mode page (0A The Control Mode page is shown below. This table summarizes the function, the default value and the changeability of each bit. Bits Bytes PS (1) Page code (0A Page length (0A Reserved RLEC...

  • Page 124: Unit Attention Parameters (00 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A When the disable queuing (DQue) bit is 0, tagged com- mand queuing is enabled. When the DQue bit is 1, tagged command queuing is disabled. Byte 4 Not implemented Byte 5 Reserved Bytes 6–7 Not implemented Bytes 8–9 The busy time-out period field contains the maximum...
  • Page 125 Medalist Pro 2160N/2160WC Product Manual, Rev. A 3. Inquiry Length (IL) bit. The IL bit is zero; 148 bytes of stand- ard Inquiry data is available. 4. When the Unit Attention bit is 0, normal Unit Attention condi- tion is generated as per Publication 77738479 Rev F. Sec- tion 4.6 - Unit Attention Condition.
  • Page 126 Medalist Pro 2160N/2160WC Product Manual, Rev. A...

  • Page 127: Appendix D. Inquiry Data

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Appendix D. Inquiry data When the initiator issues an Inquiry command, the drive returns either inquiry data or vital product data, depending on the value in the EVPD bit in byte 1 of the Inquiry command descriptor block. Both types of data are discussed in this appendix.
  • Page 128 Medalist Pro 2160N/2160WC Product Manual, Rev. A Byte 0 The peripheral qualifier field contains a zero, except for nonzero LUNs, which means that the drive is currently connected to the logical unit that is issuing the Inquiry command. The peripheral device type field contains a zero, which means that the drive is a direct-access device.
  • Page 129 ASCII text. Bytes 44–95 These bytes are reserved; they contain only zeros. Bytes 96–143 The copyright notice field contains the following ASCII string: “ Copyright (c) 1996 Seagate. All rights reserved.” Bytes 144–147 This is the servo PROM part number field.

  • Page 130: Vital Product Data

    Medalist Pro 2160N/2160WC Product Manual, Rev. A D.2 Vital product data pages When the initiator issues an Inquiry command, and the EVPD bit in byte 1 of the Inquiry command descriptor block is 1, the drive returns vital product data pages. If the EVPD bit in byte 1 of the Inquiry command descriptor block is 0, see Appendix D.1 on page 117.

  • Page 131: Unit Serial Number Page (80 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A D.2.1 Unit Serial Number page (80 The Unit Serial Number page is shown below. The table summarizes the function and the default value of each bit. Bits Bytes Peripheral qualifier Peripheral device type Page code (80 Reserved (00 Page length (08...

  • Page 132: Firmware Numbers Page (C0 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A Byte 4 The current operating definition field contains the value of the current operating definition. Byte 5 The SAVIMP bit is always 0; therefore, the current operating definition parameter cannot be saved. If the SAVIMP bit is 1, the current operating parameter can be saved.

  • Page 133: Date Code Page (C1 H )

    Medalist Pro 2160N/2160WC Product Manual, Rev. A D.2.4 Date Code page (C1 The Date Code page is shown below. The table summarizes the function and the default value of each bit. Bits Bytes Peripheral qualifier Peripheral device type Page code (C1 Reserved (00 Page length (03 Year...
  • Page 138 Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, California 95066, USA Publication Number: 32650-001, Rev. A, Printed in USA...

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