Page 1: Hard Disk Drive Specifications
IBM storage products - official published specifications Hard disk drive specifications Ultrastar 36LZX 3.5 inch SCSI hard disk drive Models: DDYS-T36950 DDYS-T18350 DDYS-T09170 Revision 2.1 S31L-8989-05...
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Page 3: Table Of Contents
7.5.4 Power consumption efficiency index ..........Ultrastar 36LZX hard disk drive specifications...
Page 4 8.8.1 Mode Parameter List ............Ultrastar 36LZX hard disk drive specifications...
Page 5 8.29 RESERVE (16) ..............Ultrastar 36LZX hard disk drive specifications...
Page 6 10.4.5 DATA OUT Phase Parity Error ..........Ultrastar 36LZX hard disk drive specifications...
Page 7 12.2.5 Information Bytes (Byte 3 through 6) ......... . . Ultrastar 36LZX hard disk drive specifications...
Page 8 12.2.14 Reserved (Byte 30 through 31) ..........Ultrastar 36LZX hard disk drive specifications...
Page 9: General
1.0 General 1.1 Introduction This document describes the specifications of the following IBM 3.5 inch SCSI drives. Ÿ DDYS-T36950 - Ultra 160, 68 pin - Ultra 160, 80 pin Ÿ DDYS-T18350 - Ultra 160, 68 pin - Ultra 160, 80 pin Ÿ...
Page 10: Glossary
1,000,000,000 bytes 1,000,000 bytes 1,000 bytes unless otherwise specified Mb/sq.in 1,000,000 bits per square inch Machine Level Control Predictive Failure Analysis (Trademark of IBM Corp.) S.M.A.R.T. Self-Monitoring Analysis and Reporting Technology Automatic Drive Maintenance SCAM SCSI Configured Automatically Single Ended SCSI...
Page 11: Outline Of The Drive
Ÿ Non head disk contact start stop Ÿ 10000rpm spindle rotation Ÿ Automatic actuator lock Ÿ PFA (SMART) Ÿ Glass substrate disks NOTE: PFA (Predictive Failure Analysis) is a trademark of the IBM Corporation. Ultrastar 36LZX hard disk drive specifications...
Page 12 Ultrastar 36LZX hard disk drive specifications...
Page 13: Fixed Disk Subsystem Description
The actuator assembly is balanced to allow vertical or horizontal mounting without adjustment. When the drive is powered off, the actuator automatically moves the head to a load/unload zone outside of the data area, where the actuator is locked. Ultrastar 36LZX hard disk drive specifications...
Page 14 Ultrastar 36LZX hard disk drive specifications...
Page 15: Drive Characteristics
7 x 512 KB or 14 x 256 KB or 28 x 128 KB Rotational speed [RPM] 10,000 Recording density [Kbpi] 303 (Average) 352 (Max) Track density [TPI] 20,000 (Average) Areal density [Mb/sq.in.] 7040 (Max) Data zone Figure 2. Data sheet NOTE: KB = 1,024 bytes Ultrastar 36LZX hard disk drive specifications...
Page 16: Inquiry Information
DDYS-T09170 205h SFV, Hungary DDYS-T18350 206h DDYS-T36950 207h DDYS-T09170 505h SPT, Thailand DDYS-T18350 506h DDYS-T36950 507h DDYS-T09170 705h Singapore DDYS-T18350 706h DDYS-T36950 707h Figure 4. Block assignment of World Wide ID in Inquiry Command Ultrastar 36LZX hard disk drive specifications...
Page 17: Cylinder Allocation
13715 - 15109 Figure 5. Cylinder allocation NOTE: Mode Page 3 (Format Device Parameters) and Mode Page 0C (Notch Parameters) provide methods to determine medium format and zone parameters. See page 107 and page 117. Ultrastar 36LZX hard disk drive specifications...
Page 18: Performance Characteristics
- Physical seek time - Latency time - Initiator delay with reconnections Read Command Case (Drive is in quiescence state) Time Cache Not Hit <400 usec Cache Hit <30 usec Figure 6. Command overhead Ultrastar 36LZX hard disk drive specifications...
Page 19: Mechanical Positioning
11.5 [mesc] 12.5 [msec] Figure 8. Full stroke seek time Full stroke seek is measured as the average of 1000 full stroke seeks with a random head switch from both directions (inward and outward). Ultrastar 36LZX hard disk drive specifications...
Page 20: Drive Ready Time
Figure 13. Spindle stop time The period from power off to complete stop of spindle is categorized as operating, and Operating Shock criteria are applied until complete stop of spindle. Refer to Operating shock on page 50. Ultrastar 36LZX hard disk drive specifications...
Page 21: Data Transfer Speed
This hard disk drive has a buffer for read ahead and write caching. For details, refer to the SCSI interface specification. Number of buffer segments: 7 x 512 KB or 14 x 256 KB or 28 x 128 KB Ultrastar 36LZX hard disk drive specifications...
Page 22: Throughput
The above table gives the time required to execute a total of 1000x read/write commands which access random LBA. T = (A + B + C) * 4096 Where: T = Calculated Time A = Command Overhead (Cache No Hit) B = Average Seek Time C = Average Latency Ultrastar 36LZX hard disk drive specifications...
Page 23: Data Integrity
5.2 Error recovery procedure Errors occurring with the drive are handled by the error recovery procedure. Errors that are uncorrectable after application of the error recovery procedures are reported to the host system as non-recoverable errors. Ultrastar 36LZX hard disk drive specifications...
Page 24 Ultrastar 36LZX hard disk drive specifications...
Page 25: Physical Format
A cylinder for spare sectors is prepared every 256 physical cylinders. NOTE: G-List entries are part of the normal maintenance work of hard disk drives. G-List entries are possible during early drive usage and are caused mainly by handling. Ultrastar 36LZX hard disk drive specifications...
Page 26 Ultrastar 36LZX hard disk drive specifications...
Page 27: Specification
Specification of “Single Attachment for Small SCSI Disk Drives” SPI-3 document, Annex C. Power pin assignment of the 80 pin (SCA-2) model is shown in SCSI signal connector (80 pin SCA-2 model) on page 29. Ultrastar 36LZX hard disk drive specifications...
Page 28: Scsi Bus Connector
+MSG -MSG +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) Figure 19. Table of signals NOTES: *1 TERMPWR can be disabled. *2 HVD is not supported. Ultrastar 36LZX hard disk drive specifications...
Page 29 NOTE: SCA-2 connector is not mechanically compatible with the 68 pin “P” connector as defined in the ANSI SCSI standard. The connector is intended for direct back plane attachment and is not intended to be cable attached to the bus. Ultrastar 36LZX hard disk drive specifications...
Page 30 8 bit devices which connect to the SCA-2 connector should have the following signals inactive (high): -DB(8), -DB(9), -DB(10), -DB(11), -DB(12), -DB(13), -DB(14), -DB(15), -DB(P1). All other signals shall be connected as defined. Ultrastar 36LZX hard disk drive specifications...
Page 31: Scsi Cable
+/-5 % regulation tolerance. 7.1.6 SCSI bus electrical characteristics Refer to ANSI SPI-3 T10/1302D Revision 11 for bus electrical characteristics. NOTE: If the drive is connected to an HVD bus, the drive I/O will be permanently damaged. Ultrastar 36LZX hard disk drive specifications...
Page 32: Auxiliary Connector On 68 Pin Model
Ÿ Pin #2,4,6,12 are reserved, and should be open. Ÿ Pin #8 is for external LED cathode. Bit 3 Bit 2 SCSI ID Bit 1 Bit 0 12 10 (Reserved) (Reserved) (Reserved) Ground LED cathode (Reserved) Figure 21. Auxiliary connector Ultrastar 36LZX hard disk drive specifications...
Page 33: Option Jumper Block
To LED out pin 77 (80-pin models) Resistor 68-pin = 150 Ohm 80-pin = 0 Ohm Figure 22. Jumper pins Note: J4 pin 3 is connected to 5V via Polyswitch for 68 pin and NC for 80 pin models. Ultrastar 36LZX hard disk drive specifications...
Page 34: Jumper Signal Description On J6
68 pin 68 pin 68 pin 68 pin 80 pin 80 pin 80 pin 80 pin 80 pin 80 pin 80 pin 80 pin Figure 23. Auto Start Delay & Delay Start 6/12 drive behavior Ultrastar 36LZX hard disk drive specifications...
Page 35 Installing a shunt jumper enables Target Initiated Synchronous Data Transfer Request Negotiation. 7.2.1.5 Position #11-12 on J6 Disable Unit Attention Installing a shunt jumper enables control of UAI (Unit Attention Inhibit) bit in Mode Page 0. 7.2.1.6 Position #13-14 on J6 Reserved. Ultrastar 36LZX hard disk drive specifications...
Page 36: Jumper Signal Description On
17, 18, 51, and 52 of the 68 pin SCSI interface. 7.2.2.3 Position #5-6 on J4 Force SE mode If a shunt jumper is installed, the drive is forced to work as a single-ended mode drive. Ultrastar 36LZX hard disk drive specifications...
Page 37 Throughout this paragraph 'on' means a shunt jumper is installed and 'off' means that no shunt jumper is installed. -DAS3 -DAS2 -DAS1 -DAS0 Device ID 0 - shipping default of 80 pin 6 - shipping default of 68 pin Figure 25. SCSI device ID Ultrastar 36LZX hard disk drive specifications...
Page 38: Environment
Figure 27. Temperature and relative humidity 7.3.1 Corrosion test The hard disk drive shows no signs of corrosion inside or outside of the HDA and remains functional after 7 days of 50 °C temperatures and 90% relative humidity. Ultrastar 36LZX hard disk drive specifications...
Page 39: Cooling Requirements
Module name Location Maximum allowable surface temperature MPU + HDC integration module 95°C DRAM 90°C VCM + Spindle Driver 95°C Channel module 95°C Figure 28. Maximum allowable module surface temperature Figure 29. Module location Ultrastar 36LZX hard disk drive specifications...
Page 40: Dc Power Requirements
Seek peak 0.93 0.05 2.30 0.10 Start up (max) 0.94 0.03 2.50 0.13 Random R/W peak 1.30 0.10 2.30 0.10 Random R/W average 0.75 0.02 0.86 0.03 14.1 Figure 32. Power supply current of DDYS-T18350 Ultrastar 36LZX hard disk drive specifications...
Page 41: Ripple Voltage
± 300 milivolts peak to peak level difference to the drive power connector ground. 7.5.4 Power consumption efficiency index Model DDYS-T36950 DDYS-T18350 DDYS-T09170 Power consumption efficiency 0.35 [W/GB] 0.53 [W/GB] 0.93 [W/GB] index (Idle mode) Figure 35. Power consumption efficiency index Ultrastar 36LZX hard disk drive specifications...
Page 42: Reliability
As the default, the function is enabled but no reporting of informational exception condition is made. The details are described in Mode Page 1C (Informational Exceptions Control) on page 121. 7.6.6 Preventive maintenance None. Ultrastar 36LZX hard disk drive specifications...
Page 43: Temperature Warning
Mode Page 1C (Informational Exceptions Control) on page 121. The warning is informed as sense data (Sense Key 01h, Code 0Bh, Qual 01h). The drive temperature can be detected by Log Sense Page 2F. Refer to Log Sense Page 2F on page Ultrastar 36LZX hard disk drive specifications...
Page 44: Mechanical Specifications
7.7 Mechanical specifications 7.7.1 Outline 7.7.1.1 68 pin model Figure 36. Outline of 68 pin model 7.7.1.2 80 pin model Figure 37. Outline of 80 pin model Ultrastar 36LZX hard disk drive specifications...
Page 45: Mechanical Dimensions
146.0 +/- 0.6 Weight [gram] 700 Maximum Figure 38. Physical dimensions 25.4 +/- 0.4 101.6 +/- 0.4 BREATHER HOLE (*) LEFT FRONT * DO NOT BLOCK THE BREATHER HOLE . Figure 39. Mechanical dimensions Ultrastar 36LZX hard disk drive specifications...
Page 46: Interface Connector
32.5 ± 0.5 4.5 ± 0.5 2 ± 0.1 TYP Figure 40. 68 pin model interface connector 7.7.3.2 80 pin model Pin 41 4.6 ± 0.7 Pin 1 Figure 41. 80 pin model interface connector Ultrastar 36LZX hard disk drive specifications...
Page 47: Mounting Positions And Tappings
MAX ALLOWABLE PENETRATION OF NOTED SCREW TO BE 4.5 mm . MAX ALLOWABLE PENETRATION OF NOTED SCREW TO BE 4.0 mm . SCREW 6-32 UNC THICKNESS OF BRACKET Figure 42. Mounting positions and tappings Ultrastar 36LZX hard disk drive specifications...
Page 48: Heads Unload And Actuator Lock
7.7.6 Breather hole The breather hole must be kept clear and unobstructed at all times. Do not cover the breather hole. Breather Hole Figure 43. Breather hole location Ultrastar 36LZX hard disk drive specifications...
Page 49: Vibration And Shock
0.5 G 0-peak, 5-300-5 Hz sine wave, 0.5 oct/min sweep rate with 3 minute dwells at 2 major resonances No data loss 1 G 0-peak, 5-300-5 Hz sine wave, 0.5 oct/min sweep rate with 3 minute dwells at 2 major resonances Ultrastar 36LZX hard disk drive specifications...
Page 50: Non-Operating Vibrations
The shock pulses of each level are applied to the drive, ten pulses for each direction and for all three axes. There must be a minimum of 30 seconds delay between shock pulses. The input level is applied to a base plate where the drive is attached with four screws. Ultrastar 36LZX hard disk drive specifications...
Page 51: Non-Operating Shock
The drive withstands the following Rotational Shock: Ÿ No data loss with Rotational Shock 30000rad/s , 1ms applied around the axis of actuator pivot. NOTE: Actuator is automatically locked at power-off to keep the heads on a landing zone. Ultrastar 36LZX hard disk drive specifications...
Page 52: Acoustics
Seek rate for the drive is to be calculated as listed below; Ns = 0.4 / (Tt + Tl) Ns = average seek rate in seeks/sec. Tt = published random seek time. Tl = time for the drive to rotate by half a revolution. Ultrastar 36LZX hard disk drive specifications...
Page 53: Identification Labels
The following labels are affixed to every hard disk drive shipped from the drive manufacturing location in accordance with appropriate hard disk drive assembly drawing: Ÿ A label containing IBM logo, IBM part number and the statement “Made by IBM Japan Ltd.”, or IBM approved equivalent.
Page 54: Electromagnetic Compatibility
The drive, when installed in a suitable enclosure and exercised with a random accessing routine at maximum data rate, meets the worldwide EMC requirements listed below. IBM will provide technical support to meet the requirements to comply with the EMC specifications. Ÿ United States Federal Communications Commission (FCC) Rules and Regulations (Class B), Part 15.
Page 55: Safety
7.12.3 German Safety Mark All Ultrastar 36LZX are to be approved by TUV on Test requirement: EN 60950, but the GS mark is not applicable to internal devices such as these drives. 7.12.4 Flammability The printed circuit boards used in this product are made of material with the UL recognized flammability rating of V-1 or better.
Page 56 Ultrastar 36LZX hard disk drive specifications...
Page 57: Scsi Command Set
RESERVE (10) REZERO UNIT SEEK SEEK EXTENDED SEND DIAGNOSTICS START/STOP UNIT SYNCHRONIZE CACHE TEST UNIT READY VERIFY WRITE WRITE AND VERIFY WRITE BUFFER WRITE EXTENDED WRITE LONG WRITE SAME Figure 48. Supported SCSI commands Ultrastar 36LZX hard disk drive specifications...
Page 58: Scsi Control Byte
In this specification, where it is not explicitly stated, all multibyte values are stored with the most significant byte first. For example in a 4 byte field byte 0 will contain the MSB and byte 3 the LSB. Ultrastar 36LZX hard disk drive specifications...
Page 59: Format Unit (04)
CDB. Ÿ Interleave Factor may be zero or one, either of which specifies an interleave of 1:1. Other Interleave Factors are ignored because of the extensive buffering implemented in the drive. Ultrastar 36LZX hard disk drive specifications...
Page 60: Defect List
FCERT bit in Mode Page 0 is provided to control certification when the format command is issued with no Data Out phase. If a format command is issued with a Data Out phase then FCERT is ignored. Ultrastar 36LZX hard disk drive specifications...
Page 61: Defect Descriptor
Defective Logical Block Address (LSB) 4n - Defective Logical Block Address n 4n +3 Figure 52. Defect descriptor - Block format. Format of the defect list sent during the data out phase when FmtData set to one. Ultrastar 36LZX hard disk drive specifications...
Page 62 (LSB) 8n - Defect Descriptor n 8n +7 Figure 53. Defect descriptor - Bytes from Index format. Format of the defect list sent during the data out phase when FmtData is set to one. Ultrastar 36LZX hard disk drive specifications...
Page 63 Defect Sector Number (LSB) 8n - Defect Descriptor n 8n + 7 Figure 54. Defect descriptor - Physical Sector format. Format of the defect list sent during the data out phase when FmtData set to one. Ultrastar 36LZX hard disk drive specifications...
Page 64: Inquiry (12)
. Page code specifies which page of vital product data information the drive shall return. The available VPD pages are defined in the addendum provided for each different drive model in the section entitled Inquiry Data Format. Ultrastar 36LZX hard disk drive specifications...
Page 65 If an INQUIRY command is received from an initiator with a pending unit attention condition (before the target reports CHECK CONDITION status), the drive processes the INQUIRY command. The unit attention condition is not cleared by this action. Ultrastar 36LZX hard disk drive specifications...
Page 66: Inquiry Data
Unit Serial Number (ASCII) 44-52 Reserved = 0 Reserved = 0 Clocking=11b QAS=0 IUS=0 54-95 Reserved = 0 96-145 Copyright Notice (ASCII) 146-163 Reserved = 0 Figure 57. INQUIRY Data - CmdDt = 0EVPD = 0 Ultrastar 36LZX hard disk drive specifications...
Page 67 Ÿ SftRe is set to zero to indicate that the target supports Hard Reset only. For all commands, except inquiry and request sense, if an invalid lun is specified a check condition will be returned. Ultrastar 36LZX hard disk drive specifications...
Page 68 Ÿ Vendor ID is 'IBM' padded with ASCII blanks. Ÿ Product ID is specified in ASCII character. Refer Product ID on page16. Ÿ Product Revision Level indicates the level of microcode. It indicates RAM microcode level. Ÿ Unit Serial Number contains the drive serial number.
Page 69 Ÿ Support indicates the type of command support. The following table defines the values and meanings of the Support field. For all commands, except inquiry and request sense, if an invalid LUN is specified a check condition will be returned. Ultrastar 36LZX hard disk drive specifications...
Page 70 CDB. In the usage map, the bit that is all or part of a field in the CDB is set to one, otherwise it is set to zero. Ultrastar 36LZX hard disk drive specifications...
Page 71 INQUIRY command descriptor block. Ÿ Page length specifies the length of the following page data. Ÿ The Supported Page Code field contains the Page Codes supported by the target. The list is in ascending order. Ultrastar 36LZX hard disk drive specifications...
Page 72 Page Code is set to 80h, and this field contains the same value as in the page code field of the INQUIRY command descriptor block. Ÿ Page length is set to 16, and this field specifies the length of the following page data. Ÿ Serial Number gives the drive serial number right aligned. Ultrastar 36LZX hard disk drive specifications...
Page 73 Wide ID - Block assignment on page 16. Ÿ yy is 2 bit Port/Node ID select. This is 11b as for parallel SCSI interface devices. Ÿ n is 22 bit drive unique serial number. Ultrastar 36LZX hard disk drive specifications...
Page 74: Log Select (4C)
The Log Select command will reset the counter variables to their default values of zero. These variables are listed in the Log Sense command. To indicate that parameters have changed, the target generates a unit attention condition for all initiators except the one that issued the Log Select command. Ultrastar 36LZX hard disk drive specifications...
Page 75: Log Sense (4D)
Log Sense Data. No bytes are transferred if the length is zero. This condition is not con- sidered an error. The target terminates the Data In phase when all available Log Sense data has been transferred or when the number of bytes equals the allocation length, whichever is less. Ultrastar 36LZX hard disk drive specifications...
Page 76: Log
ASCII. This bit is reserved and set to 0 for all other pages. LP The List Parameter bit is set to 0 for parameters that are data counters. The LP bit is set to 1 for parameters that are lists. Ultrastar 36LZX hard disk drive specifications...
Page 77: Log Sense
Fourth supported page 5h Fifth supported page 6h Sixth supported page Dh Seventh supported page Eh Eighth supported page Fh Ninth supported page 10h Tenth supported page 2Fh Figure 65. Log Sense Page 0 Ultrastar 36LZX hard disk drive specifications...
Page 78: Log Sense
Total errors recovered 52-53 Parameter Code = 04h DU = DS = LBIN TMC = 0 Parameter Length = 08h 56-63 Times recovery invoked Figure continued on next page Figure 66. Log Sense Page 2 Ultrastar 36LZX hard disk drive specifications...
Page 79 Parameter Length = 08h 68-75 Total bytes written 76-77 Parameter Code = 06h DU = DS = LBIN TMC = 0 Parameter Length = 08h 80-87 Count of LBA's with hard errors Figure 64 concluded. Ultrastar 36LZX hard disk drive specifications...
Page 80: Log Sense
Parameter Code = 04h DU = DS = LBIN TMC = 0 Parameter Length = 08h 56-63 Times recovery invoked 64-65 Parameter Code = 05h Figure continued on next page Figure 67. Log Sense Page 3 Ultrastar 36LZX hard disk drive specifications...
Page 81 Additionally the drive does not report data recovered by ECC on the fly as it is not possible to distinguish between ECC errors caused by reading before settling and other causes. Ultrastar 36LZX hard disk drive specifications...
Page 82: Log Sense
Parameter Code = 04h DU = DS = LBIN TMC = 0 Parameter Length = 08h 56-63 Times recovery invoked 64-65 Parameter Code = 05h Figure continued on next page Figure 68. Log Sense Page 5 Ultrastar 36LZX hard disk drive specifications...
Page 83 Additionally the drive does not report data recovered by ECC on the fly as it is not possible to distinguish between ECC errors caused by reading before settling and other causes. Ultrastar 36LZX hard disk drive specifications...
Page 84: Log Sense
Byte Reserved Page code = 06h Reserved PageLength =0Ch Parameter Code = 00h DU = DS = LBIN TMC = 0 Parameter Length = 08h 8-15 Error count Figure 69. Log Sense Page 6 Ultrastar 36LZX hard disk drive specifications...
Page 85: Log Sense
TMC = 0 Parameter Length = 02h Reserved Temperature (degrees Celsius) 10-11 Parameter Code 0001h ETC = LBIN TMC = 0 Parameter Length = 02h Reserved Reference Temperature (degrees Celsius) Figure 70. Log Sense Page D Ultrastar 36LZX hard disk drive specifications...
Page 86: Log Sense
0001h. The date of manufacture cannot be saved using the LOG SELECT command. The data is expected in numeric ASCII characters (30-39h) in the form YYYYWW. The accounting date specified by parameter code 0002h is a parameter that can be saved using the LOG SELECT command. Ultrastar 36LZX hard disk drive specifications...
Page 87: Log Sense
Application Client Log Figure 70. Log Sense Page F Parameter code 0000h through 003Fh are supported. The values stored in the parameter bytes represent data sent to the device in a previous LOG SELECT command. Ultrastar 36LZX hard disk drive specifications...
Page 88: Log Sense
Self-Test Results Function Code RSVD Value Extended Segment Number Timestamp 8-15 LBA of First Failure Reserved Sense Key Additional Sense Code Additional Sense Code Qualifier Vendor specific Self-Test Results Figure 71. Log Sense Page 10 Ultrastar 36LZX hard disk drive specifications...
Page 89 Block Address then the field will be FFFFFFFFFFFFFFFFh. • Sense Key, Additional Sense Code and Additional Sense Code Qualifier These fields will contain the additional information relating to the error or exception conditions during self-test. Ultrastar 36LZX hard disk drive specifications...
Page 90 Extended Segment Test Number Spin Check Write/Read/Compare ECC Test Random Seek Read Scan Figure 73. Log Sense Page 10 Extended Segment Number Ultrastar 36LZX hard disk drive specifications...
Page 91: Log Sense Page 2F
Parameter Code = 0000h LBIN TMC = 0 Parameter Length = 04h SMART Sense Code Byte SMART Sense Qualifier Most Recent Temperature Reading Vendor HDA Temperature Trip Point Figure 74. Log Sense Page 2F Ultrastar 36LZX hard disk drive specifications...
Page 92: Mode Sense (1A)
Report default value. The drive returns the default values for the page code specified. The parameters not supported by the drive are set to zero. Report saved value. The drive returns the saved value for the page code specified. Ultrastar 36LZX hard disk drive specifications...
Page 93: Mode Parameter List
Mode parameter header (6) Byte Mode Data Length Medium Type = 0 Reserved = 0 Block Descriptor Length (= 0 or 8) Figure 77. Mode parameter header (6) The ten-byte command descriptor block header is defined below. Ultrastar 36LZX hard disk drive specifications...
Page 94 When used with the MODE SELECT command, zero or eight is supported by the drive. When used with the MODE SENSE command, the drive returns eight to indicate that only a single block descriptor is available. Ultrastar 36LZX hard disk drive specifications...
Page 95: Block Descriptor
A Format Unit command is required to cause these parameters to become current only if the block length parameter is different from the current block length. When used with the MODE SENSE command, the field is dependent on how the media is currently formatted. Ultrastar 36LZX hard disk drive specifications...
Page 96: Page Descriptor
The page length field specifies the length in bytes of the mode parameters that follow. If the initiator does not set this value to the value that is returned for the page by the MODE SENSE command, the drive will terminate the command with CHECK CONDITION status. Ultrastar 36LZX hard disk drive specifications...
Page 97: Mode Page 0 (Vendor Unique Parameters)
If the error is cleared, the Target will remove the reassign candidate internally for the previously failing LBA. ARHES bit of zero indicates the drive will not automatically recover a Ultrastar 36LZX hard disk drive specifications...
Page 98 Ÿ ADC (Adaptive Cache Enable), when set, allows the drive to modify the read-ahead caching algorithm, ignoring parameters in Page 8. The adaptation is based on analyzing the most recent command history and the current contents of the cache buffers. Ultrastar 36LZX hard disk drive specifications...
Page 99 Verify Recovery Procedure (VRP). When disabled with a value set to 0, all of the steps are attempted, if required. When enabled by setting to 1, a maximum number of steps optimized for integrating the drive into a system to minimize end-user field failures is used. Ultrastar 36LZX hard disk drive specifications...
Page 100: Mode Page 1 (Read/Write Error Recovery Parameters)
RC set to zero indicates normal interpretation of PER, DTE, DCR, and TB values. The RC bit setting is used by the Target when reporting errors associated with the transfer of the Initiator's data for the following commands: - Read(6) - Read(10) Ultrastar 36LZX hard disk drive specifications...
Page 101 - ARHES = 0 - AWRE = 0 - ARRE = 0 - WCE = 0 Ultrastar 36LZX hard disk drive specifications...
Page 102 Illegal Request-DTE must be zero when PER is zero Illegal Request-DTE must be zero when PER is zero Illegal Request-DTE must be zero when PER is zero Illegal Request-DTE must be zero when PER is zero Ultrastar 36LZX hard disk drive specifications...
Page 103 Data transfer stops when an unrecoverable error is encountered. The unrecoverable block is transferred to the initiator. The drive then creates the CHECK CONDITION status with the appropriate Sense Key. Ultrastar 36LZX hard disk drive specifications...
Page 104 Data transfer stops on the unrecoverable error. The unrecoverable error block is returned to the initiator. The drive then creates the CHECK CONDITION status with the appropriate Sense Key. Ultrastar 36LZX hard disk drive specifications...
Page 105: Mode Page 2 (Disconnect/Reconnect Parameters)
512 bytes). Disconnections attempted by the Target are on block bound- aries only. For the case when (Maximum Burst Size x Block Size) is less than the Block Length, the Ultrastar 36LZX hard disk drive specifications...
Page 106 0Ch there are separate Read Buffer Full Ratios and Write Buffer Empty Ratios. When the active notch is set to zero, the values are applied in mode page 0Ch across all notches. Ultrastar 36LZX hard disk drive specifications...
Page 107: Mode Page 3 (Format Device Parameters)
Data Bytes per Physical Sector (LSB) (MSB) Interleave = 1 (LSB) (MSB) Track Skew Factor (LSB) (MSB) Cylinder Skew Factor (LSB) SSEC HSEC SURF RESERVED 21-23 RESERVED Figure 85. Mode Page 3 (Format Device Parameters) Ultrastar 36LZX hard disk drive specifications...
Page 108 RMB = Zero indicates that the media does not support removable. Fixed Disk. SURF = Zero indicates that progressive addresses are assigned to all logical blocks in a cylinder prior to allocating addresses within the next cylinder. Ultrastar 36LZX hard disk drive specifications...
Page 109: Mode Page 4 (Rigid Disk Drive Geometry Parameters)
RESERVED Figure 86. Mode Page 4 (Rigid Disk Drive Geometry Parameters) The rigid disk drive geometric page specifies various parameters for the drive. RPL Zero. Indicates that the drive does not support spindle synchronization. Ultrastar 36LZX hard disk drive specifications...
Page 110: Mode Page 7 (Verify Error Recovery Parameters)
PER, DTE, and DCR bit settings in page 7 override those of page 1 during Verify and the Verify portion of Write and Verify. There are only four valid conditions for the PER, DTE, and DCR bits. All other com- binations return Check Condition Status. Ultrastar 36LZX hard disk drive specifications...
Page 111 Ÿ Verify Correction Span field specifies the size in bits of the largest data error burst for which data error correction may be attempted. The field may be set to any value but the drive will not use off-line correction during verify operations. Ultrastar 36LZX hard disk drive specifications...
Page 112: Mode Page 8 (Caching Parameters)
Ÿ WCE (Write Cache Enable) bit when set at zero indicates that the drive must issue Good Status for Write(6) or Write extend(10) command only after successfully writing the data to the media. When Ultrastar 36LZX hard disk drive specifications...
Page 113 Ÿ DRA (Disable Read Ahead) bit when set to one requests that the target not read into the buffer any logical block beyond the addressed logical block(s). When it is set at zero, the target may continue to read logical blocks into the buffer beyond the addressed logical block(s). Ultrastar 36LZX hard disk drive specifications...
Page 114 SIZE is set at zero. The drive considers this a minimum size. It will be rounded to a value of 7, 14 or 28 segments. Ÿ Non Cache Segment Size fields are internally ignored by the Target. Ultrastar 36LZX hard disk drive specifications...
Page 115: Mode Page A (Control Mode
Check Condition Status. The sense key will be set to Unit Attention and the additional sense code will be set to COMMANDS CLEARED BY ANOTHER INITIATOR. Ultrastar 36LZX hard disk drive specifications...
Page 116 Ÿ Extented Self-test Routine Completion Time is an advisory parameter that an initiator may use to determine the time in seconds that the target requires to complete self-test routine when the target is not interrupted by an initiator and no errors occur during execution of the self-test routine. Ultrastar 36LZX hard disk drive specifications...
Page 117: Mode Page 0C (Notch Parameters)
1 is the outermost notch. Following mode parameters are based on the current active notch: Ÿ Mode Page 2 - Read Buffer Full Ratio - Write Buffer Empty Ratio Ultrastar 36LZX hard disk drive specifications...
Page 118 00h. If a bit is one, then the corresponding mode page contains parameters that may be different for different notches. If a bit is zero, then the corresponding mode page contains parameters that are constant for all notches. Ultrastar 36LZX hard disk drive specifications...
Page 119: Mode Page 19 (Port Control)
Reserved = 0 Reserved = 0 Figure 91. Page 19 (Port Control) Ÿ Protocol identifier filed has a value of 1h to indicate SPI SCSI devices. Ÿ Synchronous transfer timeout field must be 0000h. Ultrastar 36LZX hard disk drive specifications...
Page 120: Mode Page 1A (Power Control)
Ÿ Standby Condition Timer field indicates the inactivity time in 100 millisecond increments that the target shall wait before entering the Standby condition. The minimum allowable inactivity time is 60 minutes. Any value less than this is accepted, but will automatically default to 60 minutes. Ultrastar 36LZX hard disk drive specifications...
Page 121: Mode Page 1C (Informational Exceptions Control)
INTERVAL TIMER field), if the DEXCPT is zero. The Method of Reporting and Report Count would apply. The false drive failure is reported as sense qualifier 5DFFh. The TEST bit of zero instructs the drive to stop generating any false drive notifications. Ultrastar 36LZX hard disk drive specifications...
Page 122 Ÿ Report Count field indicates the number of times the target reports an informational exception con- dition. The Report Count of ZERO indicates no limits on the number of times the target reports an informational exception condition. Ultrastar 36LZX hard disk drive specifications...
Page 123: Mode Sense (5A)
The MODE SENSE (5A) command provides a means for the drive to report various device parameters to the initiator. See the MODE SENSE (1A) command for a description of the fields in this command. Ultrastar 36LZX hard disk drive specifications...
Page 124: Mode Select (15)
In the Pages of the MODE SENSE command the drive will return the number of bytes supported for each Page. The Page Length set by the initiator in the MODE SELECT command must be same value Ultrastar 36LZX hard disk drive specifications...
Page 125 MODE SELECT command. The drive shall set the additional sense code to PARAMETERS CHANGED (2Ah). Ultrastar 36LZX hard disk drive specifications...
Page 126: Mode Select (55)
The MODE SELECT (55) command provides a means for the initiator to specify LUN or device para- meters to the Target. See the MODE SELECT (15) command for a description of the fields in this command. Ultrastar 36LZX hard disk drive specifications...
Page 127: Persistent Reserve In (5E)
PERSISTENT RESERVATION OUT command. 8.12.1 Service Action Ultrastar 36LZX implements following service action codes. If a reserved service action code is specified, the drive returns a CHECK CONDITION status. The sense key is set to ILLEGAL REQUEST and the additional sense data is set to INVALID FIELD IN CDB.
Page 128: Parameter Data For Read Keys
8.12.3 Parameter data for Read Reservations Byte (MSB) Generation (LSB) (MSB) Additional length (n-7) (LSB) (MSB) Reservation descriptors (LSB) Figure 99. PERSISTENT RESERVE IN parameter data for Read Reservations Ultrastar 36LZX hard disk drive specifications...
Page 129 Extent length (LSB) Figure 100. PERSISTENT RESERVE IN Read Reservation Descriptor Scope-specific address is filled with 0. Scope and Type are described in PERSISTENT RESERVATION OUT command section. Extent length is filled with 0. Ultrastar 36LZX hard disk drive specifications...
Page 130: Persistent Reserve Out (5F)
Parameter List Length must be 18h. If not the drive returns CHECK CONDITION status. And the sense key is set to ILLEGAL REQUEST and the additional sense data is set to PARAMETER LIST LENGTH ERROR Ultrastar 36LZX hard disk drive specifications...
Page 131: Service Action
8.13.1 Service Action Ultrastar 36LZX implements service action codes as follows. If a code which is not supported or a reserved code is specified, the drive returns a CHECK CONDITION status. The sense key is set to ILLEGAL REQUEST and the additional sense data is set to INVALID FIELD IN CDB. In case of PERSISTENT RESERVATION OUT command executing a Register service action, this field is ignored.
Page 132 CHECK CONDITION status. The sense key is set to ILLEGAL REQUEST and the additional sense data is set to INVALID RELEASE OF ACTIVE PERSISTENT RESERVATION. Ultrastar 36LZX hard disk drive specifications...
Page 133 ACA condition is generated for an initiator and any command from another initiator is requested, the drive enqueues the command but does not reconnect for the command until the ACA condition is cleared by the initiator associating the ACA condition. Ultrastar 36LZX hard disk drive specifications...
Page 134: Scope
Figure 103. Persistent Reservation Scope Code 8.13.3 Type Ultrastar 36LZX implements type codes as follows. If a code which is not supported or a reserved code is specified, the target returns a CHECK CONDITION status. The sense key is set to ILLEGAL REQUEST and the additional sense data is set to INVALID FIELD IN CDB.
Page 135 RESERVATION with Write Exclusive type and Exclusive Access type and returns RESERVATION CONFLICT status Exsisting Type New Type Write Exclusive (1) Exclusive Access (3) Write Exclusive Registrants Only (5) Exclusive Access Registrants Only (6) Figure 105. Conflict between new and existing PERSISTENT RESERVATION Ultrastar 36LZX hard disk drive specifications...
Page 136: Parameter List
The Scope and the Type are applied in the process for the Reserve, Release, and Preempted and Clear service action but they are ignored in the process for the Register service action because they are not used. Ultrastar 36LZX hard disk drive specifications...
Page 137 0 set to 0 Figure 108. APTPL and information held by a drive 8.13.5.7 Generation counter The drive increments the Generation counter when Register service action or Preempt and Clear service action complete successfully. Ultrastar 36LZX hard disk drive specifications...
Page 138: Pre-Fetch (34)
If the Immed bit is set to one, the drive returns a Check Condition status. The sense key shall be set to Illegal Request and the additional sense code shall be set to Invalid Field in CDB. RelAdr Relative Block Address is not supported. Must be set to zero. Ultrastar 36LZX hard disk drive specifications...
Page 139: Read (08)
This field specifies the number of blocks to be transferred. A value of zero implies 256 blocks are to be transferred. Note: Errors are handled by ERP (error recovery procedure). ERP's are controlled by the error recovery parameters specified by MODE SELECT command. Ultrastar 36LZX hard disk drive specifications...
Page 140: Read Buffer (3C)
The function of this command and the meaning of fields within the command descriptor block depend on the contents of the mode field. MODE Description 0000 Read Combined Header and Data 0010 Data 0011 Descriptor 1010 Read Data from Echo Buffer 1011 Echo Buffer Descriptor All others Not supported. Ultrastar 36LZX hard disk drive specifications...
Page 141: Combined Header And Data (Mode 0000B)
Buffer ID field should normally be set to zero indicating the drive data transfer buffer. If any other value is specified, the drive returns all zeros in the READ BUFFER descriptor. Buffer Offset field is reserved. Ultrastar 36LZX hard disk drive specifications...
Page 142: Read Data From Echo Buffer (Mode 1010B)
EBOS (Echo Buffer Overwritten Supported) bit of zero indicates that the echo buffer is shared by all initiators. Buffer Capacity field returns the size of the echo buffer in byte aligned to a four-byte boundary. Ultrastar 36LZX hard disk drive specifications...
Page 143: Read Capacity
This option provides the information which the initiator needs to determine the amount of space available on the same track which is accessible without a head switch or seek. Ultrastar 36LZX hard disk drive specifications...
Page 144 DATA IN phase. Byte (MSB) Logical Block Address (LSB) (MSB) Block Length (LSB) Figure 116. Format of READ CAPACITY command reply Ÿ Block Length specifies the length in bytes of the block. Ultrastar 36LZX hard disk drive specifications...
Page 145: Read Defect Data (37)
The target will transfer all of the Read Defect Data up to the number of bytes allocated by the initiator. Note: The drive will terminate the Data In phase when the Allocation Length has been transferred or when all available Defect Data has been transferred to the initiator, whichever is less. Ultrastar 36LZX hard disk drive specifications...
Page 146: Defect List Header
Figure 119. Defect Descriptors of Bytes from Index Format Defect Bytes from Index is gotten using the following equation: Bytes from Index = (Physical Sector Number) * N Where: N = Bytes per sector Ultrastar 36LZX hard disk drive specifications...
Page 147: Physical Sector Format (101B)
Additional Sense Code is set to Partial Defect List Transferred. The defect list length will be set to 0FFF8h, indicating the maximum number of defect descriptors which can be transferred. Defects beyond this number can not be read by the initiator. Ultrastar 36LZX hard disk drive specifications...
Page 148: Read Defect Data (B7)
The drive sends defect list (Defect Descriptors) in a four byte ABA (Absolute Block Address) format which follows a four byte Defect List Header. The target will transfer all of the Read Defect Data up to the number of bytes allocated by the initiator. Ultrastar 36LZX hard disk drive specifications...
Page 149: Defect List Header
Figure 123. Defect Descriptors of Bytes from Index Format Defect Bytes from Index is derived using the following equation: Bytes from Index = (Physical Sector Number) * N Where: N = Bytes per sector Ultrastar 36LZX hard disk drive specifications...
Page 150: Physical Sector Format (101B)
If the Allocation Length is insufficient to transfer all of the defect descriptors, the Defect List Length will not be adjusted to reflect the truncation. The Target will not create a CHECK CONDITION status. Ultrastar 36LZX hard disk drive specifications...
Page 151: Read Extended
A FUA bit of zero allows the data to be read from either the media or the cache. RelAdr Relative Block Address is not supported. Must be set to zero. Ultrastar 36LZX hard disk drive specifications...
Page 152: Read Long (3E)
Negative values are indicated by two's complement notation. The transfer length is calculated as follows: transfer length = logical block size + 40 Ÿ RelAdr Relative Block Address is not supported by the drive. Ultrastar 36LZX hard disk drive specifications...
Page 153: Reassign Blocks (07)
(“G” list) defect list. Data contained at the logical block address being reassigned is not preserved by the drive and is filled with a constant pattern. Ultrastar 36LZX hard disk drive specifications...
Page 154 Defective Logical Block Address is 4 bytes in length. The initiator can specify from 1 to 4 Defective Logical Block Address according to the Defect List Length from 4 to 16, respectively. Defective Logical Block Addresses must be ordered in ascending order, otherwise the drive returns Check Condition. Ultrastar 36LZX hard disk drive specifications...
Page 155: Receive Diagnostics (1C)
This page contains a list of supported pages. Byte Page Code = 0 Reserved = 0 Page Length = 03h First supported page 0h Second supported page 40h Third supported page 80h Figure 130. Receive Diagnostic page 0 Ultrastar 36LZX hard disk drive specifications...
Page 156: Receive Diagnostic
Ÿ ALTS (Alternate Sector) is set to one if the translated block is in alternate sector area. Ÿ ALTT (Alternate Track) is set to one if the translated block is in alternate track area. This bit is not used by the drive. Ultrastar 36LZX hard disk drive specifications...
Page 157: Receive Diagnostic
Ÿ Off-line Read Scan Ration indicates the progress of the read scan activity. The number is the numerator of a fraction whose denominator is 100. Ÿ Estimated Completion Time indicates the total time in seconds to complete a full read scan without interruption. Ultrastar 36LZX hard disk drive specifications...
Page 158: Release (17)
Ÿ 3rd Party ID specifies the ID of the third party for which the LUN is reserved. Ÿ Extents must be 0. Extension is not supported by the drive. Ÿ Reservation Identification field is ignored. Refer to 8.29 "Reserve (16)* on page 156. Ultrastar 36LZX hard disk drive specifications...
Page 159: Release (57)
If the 3rdPty bit is zero, then the third-party release option is not requested. If the 3rdPty bit is one, then the Target releases the LUN, but only if the reservation was made using the third-party reservation option and the 3rd Party ID is the ID of the initiator that made the reservation Ultrastar 36LZX hard disk drive specifications...
Page 160: Report Device Identifier (A3)
LENGTH field large enough to contain all the data. The REPORT DEVICE IDENTIFIER parameter list contains a four-byte field that contains the length in bytes of the parameter list and the logical unit's identifier. Ultrastar 36LZX hard disk drive specifications...
Page 161 The sense key is set to NOT READY and the additional sense data is set as described in the TEST UNIT READY command. This information should allow the application client to determine the action required to cause the device server to become ready. Ultrastar 36LZX hard disk drive specifications...
Page 162: Report Lun (A0)
The LUN list length shall contain the length in bytes of the LUN list that is available to be transferred. This product only supports one LUN. Therefore, the LUN list length must be set to 8. The only supported LUN is zero. Ultrastar 36LZX hard disk drive specifications...
Page 163: Request Sense (03)
The drive will return the number of bytes in the allocation length or 32 bytes whichever is less. The contents of the sense data is defined in SCSI Sense Data on page 209. A nexus which exists between an initiator, a target, and a logical unit. Ultrastar 36LZX hard disk drive specifications...
Page 164: Reserve
Note: The LUN may be only released by the initiator who sent the RESERVE command. Extents must be 0. Extension is not supported by the drive. Reservation Identification is ignored. Extent List length must be zero. Extent List length is not supported. Ultrastar 36LZX hard disk drive specifications...
Page 165: Reserve
Reserve command releases the previous reservation when the new reservation is granted. Reservation queuing is not supported by the drive. If a LUN is reserved and a Reserve command is issued from a different initiator, the Target responds with a reservation Conflict. Ultrastar 36LZX hard disk drive specifications...
Page 166: Rezero Unit
Reserved = 0 Reserved = 0 Reserved = 0 VU = 0 Reserved = 0 FLAG LINK Figure 143. REZERO UNIT (01) The REZERO UNIT command requests that the target seek logical block address 0. Ultrastar 36LZX hard disk drive specifications...
Page 167: Seek (0B)
Reserved = 0 (MSB) Logical Block Address (LSB) Reserved = 0 VU = 0 Reserved = 0 FLAG LINK Figure 144. SEEK (0B) The SEEK command requests the drive to seek the specified logical block address. Ultrastar 36LZX hard disk drive specifications...
Page 168: Seek Extended (2B)
Logical Block Address (LSB) Reserved = 0 VU = 0 Reserved = 0 FLAG LINK Figure 145. SEEK EXTENDED (2B) The SEEK EXTENDED command requests the drive to seek the specified logical block address. Ultrastar 36LZX hard disk drive specifications...
Page 169: Send Diagnostic (1D)
Ÿ SlfTst set to one indicates that the device performs its internal self test when Function code field is 000b. If set to zero, the content of Function code is specified in Function code field values. Ultrastar 36LZX hard disk drive specifications...
Page 170 The local microprocessor, RAM (scratch pad and buffer), and control electronics are included here. See 11.18.2, “Diagnostics Command” on page 222 for a detailed listing of the operations carried out by the Diagnostics Command. Ultrastar 36LZX hard disk drive specifications...
Page 171: Send Diagnostic
Reserved = 0 Page Length = 0Ah Reserved = 0 Supplied format Reserved = 0 Translate format 6-13 Address to Translate Figure 149. Diagnostic Page 40 Supplied Format may take one of the following three values: Ultrastar 36LZX hard disk drive specifications...
Page 172: Send Diagnostic
(MSB) Off-line Immediate Time (LSB) Figure 151. Send Diagnostic Page 80 Ÿ Off-line Immediate Time specifies the delay to start off-line read scan in seconds. When this value is zero, the target starts off-line read scan immediately. Ultrastar 36LZX hard disk drive specifications...
Page 173: Set Device Identifier (A4)
The maximum value for this field is 512 bytes. A parameter list length of zero indicates that no data is transferred, and that subsequent REPORT DEVICE IDENTIFIER commands return an Identifier length of zero. Ultrastar 36LZX hard disk drive specifications...
Page 174 The SET DEVICE IDENTIFIER parameter list contains the identifier to be set by the addressed logical unit. Byte Identifier Figure 153. SET DEVICE IDENTIFIER Parameter List The IDENTIFIER field is a vendor specific value, to be returned in subsequent REPORT DEVICE IDENTIFIER commands. Ultrastar 36LZX hard disk drive specifications...
Page 175: Start/Stop Unit (1B)
Note: Once the drive has become ready (after a power on), the Start/Stop UNIT command can be used without any errors regardless of the state of the motor: stopped or spinning. Ultrastar 36LZX hard disk drive specifications...
Page 176: Synchronize Cache (35)
RelAdr bit is set to one, the drive returns Check Condition status. The sense key shall be set to Illegal Request and the additional sense code shall be set to Invalid Field in CDB. Ultrastar 36LZX hard disk drive specifications...
Page 177: Test Unit Ready (00)
TEST UNIT READY, INQUIRY, or REQUEST SENSE command until the Power On sequence is complete. The drive will return CHECK CONDITION status with NOT READY sense key and IN PROCESS OF BECOMING READY sense code for all other commands during the Power On period. Ultrastar 36LZX hard disk drive specifications...
Page 178: Verify (2F)
The VERIFY command requests that the drive verify the data written on the media. A verification length of zero indicates that no data will be transferred. This condition is not considered an error. ByteChk is not supported and must be 0. Ultrastar 36LZX hard disk drive specifications...
Page 179: Write (0A)
The WRITE command requests the drive to write the specified number of blocks of data from the initiator to the medium starting at the specified logical block address. See READ (08) on page 139 for the parameters. Ultrastar 36LZX hard disk drive specifications...
Page 180: Write And Verify (2E)
The initiator should set the DPO bit when the blocks written by this command are not likely to be read again in the near future. Ÿ Relative Block Address is not supported. Must be set to zero. Ultrastar 36LZX hard disk drive specifications...
Page 181: Write Buffer (3B)
MODE Description 0000 Write combined header and data 0010 Data 0100 Download Microcode 0101 Download Microcode and Save 1010 Write Data to Echo Buffer No other modes are supported by the drive. Ultrastar 36LZX hard disk drive specifications...
Page 182: Combined Header And Data (Mode 0000B)
Ÿ on a sector boundary. If an invalid value is specified, the command is terminated with CHECK CONDITION status. The drive shall set the sense key to ILLEGAL REQUEST and additional sense code to ILLEGAL FIELD IN CDB. Ultrastar 36LZX hard disk drive specifications...
Page 183: Download Microcode (Mode 0100B)
However there is a small possibility that an invalid code will be accepted. If this occurs, the unit usually becomes inoperable and will have to be returned to the manufacturer for recovery. Ultrastar 36LZX hard disk drive specifications...
Page 184: Write Data To Echo Buffer (Mode 1010B)
Upon successful completion of a Write Buffer command the data will be preserved in the echo buffer unless there is an intervening command to any logical unit in which case it may be changed. Ultrastar 36LZX hard disk drive specifications...
Page 185: Write Extended (2A)
Good Status. A FUA bit of zero indicates that the Target may return Good Status prior to writing the data to the media. RelAdr Relative Block Address is not supported. Must be set to zero. Ultrastar 36LZX hard disk drive specifications...
Page 186: Write Long (3F)
Negative values are indicated by two's complement notation. Ÿ RelAdr (Relative Block Address) is not supported. Must be set to ZERO. Ultrastar 36LZX hard disk drive specifications...
Page 187: Write Same (41)
Logical Unit are written. Ÿ RelAdr (Relative Block Address) is not supported and must be set to be ZERO. The data for this command is not retained in the cache. Ultrastar 36LZX hard disk drive specifications...
Page 188 Ultrastar 36LZX hard disk drive specifications...
Page 189: Scsi Status Byte
This status indicates that the target's command queue is full. If a tagged command queuing feature is enabled and there is no room on the command queue, this status is returned when the initiator sends a command. For this status sense is not valid. Ultrastar 36LZX hard disk drive specifications...
Page 190 Ultrastar 36LZX hard disk drive specifications...
Page 191: Scsi Message System
If an unsupported message is received, the drive will send the MESSAGE REJECT message to the initi- ator. If at the time the unsupported message is received a valid NEXUS exists, the drive will continue with the command. If no valid NEXUS exists, the drive will go to Bus Free. Ultrastar 36LZX hard disk drive specifications...
Page 192: Command Complete (00)
REQ/ACK offset values in the range 0 through 63. If ATN is negated before all bytes of a multiple-byte extended message is received, the drive will go to BUS FREE to signal a catastrophic error. Ultrastar 36LZX hard disk drive specifications...
Page 193 Mt = Mi 400 nSec 2.50 MT/s 101 <= Mi <= 106 Mt = Mi 425 nSec 2.35 MT/s 107 <= Mi <= 255 Mt = 106 (Asynch mode) Figure 168. Initiator Request/Target Response (LVD mode) Ultrastar 36LZX hard disk drive specifications...
Page 194 Mt = Mi 400 nSec 2.50 MT/s 101 <= Mi <= 106 Mt = Mi 425 nSec 2.35 MT/s 107 <= Mi <= 255 Mt = 106 (Asynch mode) Figure 169. Initiator Request/Target Response (SE mode) Ultrastar 36LZX hard disk drive specifications...
Page 195 94 <= Mi <= 100 400 nSec 2.50 MT/s 101 <= Mi <= 106 425 nSec 2.35 MT/s 107 <= Mi <= 255 Send Message Reject Asynch mode) Figure 170. Target Response to Initiator's Transfer Period (LVD mode) Ultrastar 36LZX hard disk drive specifications...
Page 196 94 <= Mi <= 100 400 nSec 2.50 MT/s 101 <= Mi <= 106 425 nSec 2.35 MT/s Send Message Reject 107 <= Mi <= 255 (Asynch mode) Figure 171. Target Response to Initiator's Transfer Period (SE mode) Ultrastar 36LZX hard disk drive specifications...
Page 197: Wide Data Transfer Request (01,02,03H)
The drive responds to each Initiator requested transfer width exponent as shown in the following table. Initiator Target Target Data Request Response Transfer Width Ei = 00h Et = 00h 8 Bit Data Transfers Ei > 00h Et = 01h 16 Bit Data Transfers Figure 173. Initiator Request/Target Response Ultrastar 36LZX hard disk drive specifications...
Page 198 Note: If during the Message In phase of negotiations, either Target or Initiator started, ATN is asserted prior to transmission of the last byte of the message and the message is not Message Parity or Message Reject, the Target goes to 8 bit data transfer mode. Ultrastar 36LZX hard disk drive specifications...
Page 199: Parallel Protocol Request (01,06,04H)
Reserved QAS_R DT_RE IU_RE Figure 176. Bit position table for Byte 7 of Parallel Protocol Request QAS_REQ (Quick Arbitrate and Select) is not supported. The bit should be zero. Ultrastar 36LZX hard disk drive specifications...
Page 200: Save Data Pointer (02)
After receiving this message the drive may retry the previous phase by sending a RESTORE POINTERS message to the initiator and then repeating the previous COMMAND, DATA, or STATUS phase. Ultrastar 36LZX hard disk drive specifications...
Page 201: Abort (06)
If the drive receives this message under any other circumstance, the drive will change to BUS FREE to signal a catastrophic error. After receiving this message, the drive will retry sending the previous message to the initiator. Ultrastar 36LZX hard disk drive specifications...
Page 202: Linked Command Complete (0A)
10.1.17 CLEAR QUEUE TAG (0E) All I/O processes for all initiators shall be cleared. All active I/O processes shall be terminated. The target shall go to the Bus Free phase following successfully receipt of this message. Ultrastar 36LZX hard disk drive specifications...
Page 203: Queue Tag Messages (20H, 21H, 22H)
This tagged command is executed in the order received. All commands received before this command should be executed before this command and all commands received after this commands should be executed after this command. Ultrastar 36LZX hard disk drive specifications...
Page 204: Ignore Wide Residue (23H)
LUN remains the same. When the IDENTIFY message is sent from the drive to the initiator during reconnection, an implied RESTORE POINTERS message must be performed by the initiator. Ultrastar 36LZX hard disk drive specifications...
Page 205: Supported Message Functions
- If the initiator rejects the DISCONNECT message, the drive will not disconnect but may attempt to disconnect at a later time. This function may be used to selectively disable disconnection during portions of a command. Ultrastar 36LZX hard disk drive specifications...
Page 206: Attention Condition
1. The drive receives an illegal or inappropriate message and goes to the MESSAGE IN phase to send a MESSAGE REJECT message. 2. The drive detects a catastrophic error condition and goes to the BUS FREE phase. Ultrastar 36LZX hard disk drive specifications...
Page 207: Scsi Bus Related Error Handling Protocol
The action for a particular file model is defined in the optional customized interface spec addendum for each model. The action for a particular file model is defined in the optional customized interface spec addendum for each model. Ultrastar 36LZX hard disk drive specifications...
Page 208: Initiator Detected Error Message
The command is aborted, the bus freed, and Sense data is set to MESSAGE REJECT ERROR. This occurs when the drive has not sent a message, but gets a MESSAGE REJECT from the initiator. Ultrastar 36LZX hard disk drive specifications...
Page 209: Additional Information
For all Check Conditions Sense data is built by the target provided a valid LUN address is known. Sense data is cleared by the Target upon receipt of any subsequent command to the LUN from the initiator receiving the Check Condition. Ultrastar 36LZX hard disk drive specifications...
Page 210: Invalid Lun In Identify Message
Initiator on the specified logical unit are terminated. The current I/O process is ended with a CHECK CONDITION status, the sense key is set to ABORTED COMMAND, and the additional sense code is set to OVERLAPPED COMMANDS ATTEMPTED. Status is only returned for the current I/O process. Ultrastar 36LZX hard disk drive specifications...
Page 211: Command Processing During Execution Of Active I/O Process
- disconnection is allowed for the current I/O process, and - there is no queued I/O process or active I/O process corresponding to the I_T_L_Q nexus for the current I/O process, and - the command is not linked to a previous command. Ultrastar 36LZX hard disk drive specifications...
Page 212 I/O process. This occurs if command execution is prevented by an- other internal Target condition listed in 11.1.1, “Priority of SCSI Status Byte Reporting” at the time the command is dequeued. Ultrastar 36LZX hard disk drive specifications...
Page 213: Unit Attention Condition
ALL OTHER The drive executes the command with GOOD status and clears the unit attention condition unless another unit attention condition exists. And then the sense data for the unit attention condition is lost. Ultrastar 36LZX hard disk drive specifications...
Page 214: Command Processing During Startup And Format Operations
The drive executes the command, returns the sense data generated by the Internal Error condition, returns Good Status, and clears the Internal Error condition for that Initiator. ALL OTHER The drive terminates the command with a CHECK CONDITION status and clears the Internal Error condition. Ultrastar 36LZX hard disk drive specifications...
Page 215: Deferred Error
RAM Code, Configuration Sector Revision Mismatch Ÿ Format Command Failure Degraded This condition is caused when Format Unit command failed or was interrupted abnormally (Mode Page 0, byte 5, bit 4 FDD controls Format Degraded mode). Ultrastar 36LZX hard disk drive specifications...
Page 216 (Stop) is NOT cleared Not Executed. Check Condition Status is returned with Other Commands Sense Key 02h (Not Ready) ASC/ASCQ 0402h (Initialize Command Required) Figure 179. Spindle Motor Degraded Mode - Disable Auto Start Ultrastar 36LZX hard disk drive specifications...
Page 217 Code NOT load) Other Commands Not Executed. Check Condition Status is returned with Sense Key 02h (Not Ready) ASC/ASCQ 0401h (In Process of Becoming Ready) Figure 180. Spindle Motor Degraded Mode - Auto Start Delay/Spinning Up Ultrastar 36LZX hard disk drive specifications...
Page 218 Mode is NOT cleared Other Commands Not Executed. Check Condition Status is returned with Sense Key 02h (Not Ready) ASC/ASCQ 0400h (Start Spindle Motor Fail) Figure 181. Spindle Motor Degraded Mode - Spindle Start Failure Ultrastar 36LZX hard disk drive specifications...
Page 219 Mode is NOT cleared Other Commands Not Executed. Check Condition Status is returned with Sense Key 02h (Not Ready) ASC/ASCQ 0402h (Initialize Command Required) Figure 182. Spindle Motor Degraded Mode - Spindle Stopped by Unit Stop Command Ultrastar 36LZX hard disk drive specifications...
Page 220 Not Executed. Check Condition Status is returned with Other Commands Sense Key 02h (Not Ready) ASC/ASCQ 4080h (Diag Fail- Bring up Fail) Sense Key 02h (Not Ready) ASC/ASCQ 4085h (Diag Fail-RAM code NOT load) Figure 183. Self Configuraion Failure Degraded Mode Ultrastar 36LZX hard disk drive specifications...
Page 221: Command Processing While Reserved
2. If the issuing Initiator is neither the one that made the reservation nor the one to receive the reservation then Ÿ A Request Sense or Inquiry command is permitted. Ÿ A Release command is permitted but is ignored Ÿ Any other command results in a Reservation Conflict Status. Ultrastar 36LZX hard disk drive specifications...
Page 222: Priority Commands
Ÿ Commands for which disconnection is not allowed. (These may result in a Busy Status.) Ÿ Commands in which a SCSI bus error occurred between selection and first disconnection following the receipt of the CDB. Ultrastar 36LZX hard disk drive specifications...
Page 223: Queue Depth
3. When DQue (Disable queue) of mode page 0Ah is 1, if an initiator issues a tagged command, the drive returns "Message Reject" message (07h) and receives that command as an untagged com- mand. Ultrastar 36LZX hard disk drive specifications...
Page 224: Command Reordering
P-1. The sense data for P-2 will be set after the Contingent Allegiance condition caused by P-1 is cleared. 11.6 Back to Back Write Back to Back Write allows plural write commands requesting sequential LBA's to be written without losing a motor revolution. Ultrastar 36LZX hard disk drive specifications...
Page 225: Write Cache
An error site determined to need reassignment during a write is recommended for reassignment at the conclusion of the write. The setting of the AWRE bit is checked and the target will automatically reallocate or recommend reassign for the following commands. Ÿ Write(6) Ultrastar 36LZX hard disk drive specifications...
Page 226 Recovered Data without ECC - Data Rewritten Recovered Data with ECC Recovered Data with ECC - Auto Reallocated Recovered Data with ECC - Recommend Reassign Recovered Data with ECC - Data Rewritten Figure 185. Sense data combinations with auto/recommend rewrite/reallocate Ultrastar 36LZX hard disk drive specifications...
Page 227: Segmented Caching
As a consequence the Target allows disconnect permission to be enabled by the Identify message independent of the initiator's use of arbitration prior to selection. A non-arbitrating initiator must ensure that disconnect permission in the Identify message is disabled (bit 6=0) for proper operation. Ultrastar 36LZX hard disk drive specifications...
Page 228: Selection Without Atn
Ÿ By issuing a Bus Device Reset message to the Target. This will also abort all current and queued I/O processes. Ÿ By generating a RESET condition on the bus. This MUST be the last resort. Ultrastar 36LZX hard disk drive specifications...
Page 229: Reset
If reset occurs while a physical sector is being written, the write operation is disabled after the current physical sector is written. Data is not lost as long as power stays valid until the physical sector being written is completed. Ultrastar 36LZX hard disk drive specifications...
Page 230: Diagnostics
The Inquiry command will always respond with good status. Detecting a fault during power on will not terminate execution of the diagnostics nor will it terminate the power on process. Faults detected during a Send Diagnostics command will report a Check Condition as end status. Ultrastar 36LZX hard disk drive specifications...
Page 231: Idle Time Function
SCSI commands and for the purpose of failure analysis. This is performed if the drive has not received a SCSI command for 10 minutes. The execution time is about 300mS. Ultrastar 36LZX hard disk drive specifications...
Page 232 Ultrastar 36LZX hard disk drive specifications...
Page 233: Scsi Sense Data
FRU = 0 SKSV Sense-Key Specific Bits 16-17 Sense-Key Specific Bytes 18-19 Reserved = 0 20-23 Vendor unique Error information 24-29 Product Specific Information 30-31 Reserved = 0 Figure 186. Format of Sense Data. Ultrastar 36LZX hard disk drive specifications...
Page 234: Sense Data Description
Additional Sense Code and Additional Sense Code Qualifier. Hardware Error The drive detected a unrecoverable hardware error while performing a command or during a diagnostic test. More detailed information is contained in the Additional Sense Code and Additional Sense Code Qualifier. Ultrastar 36LZX hard disk drive specifications...
Page 235: Information Bytes (Byte 3 Through 6)
Indicates the remaining number of bytes in the sense data. (It is always set to 18h.) 12.2.7 Command Specific Information (Byte 8 through 11) The values in this field vary with products. Please see the individual product specification for more details. Ultrastar 36LZX hard disk drive specifications...
Page 236: Additional Sense Code/Qualifier (Byte 12 And 13)
(Read Defect Data Only) Internal target failure Internal logic error Predictive Failure Analysis threshold reached Predictive Failure Analysis Test Warning Figure 187. Sense Key / Sense Code / Qualifier combinations continued on next page. Ultrastar 36LZX hard disk drive specifications...
Page 237 Degrade Mode. RAM Microcode Not Loaded. Hardware error. Buffer CRC Error on Write. Hardware error. Internal logic error. Hardware error. Command timeout. Figure 179. Sense Key / Sense Code / Qualifier combinations continued on next page. Ultrastar 36LZX hard disk drive specifications...
Page 238 Unit attention. Command cleared by another initiator Unit attention. Micro code has been changed Predictive Failure Analysis threshold reached Predictive Failure Analysis Test Warning Figure 179. Sense Key / Sense Code / Qualifier combinations continued on next page Ultrastar 36LZX hard disk drive specifications...
Page 239 Aborted command. Inappropriate/illegal message. An inappropriate or illegal message occurs when the initiator sent a message that either is not supported or is not in a logical sequence Aborted command. Overlapped commands attempted Figure 279. concluded. Ultrastar 36LZX hard disk drive specifications...
Page 240: Fru : Field Replaceable Unit (Byte 14)
Bytes are numbered starting from zero, as shown in the tables describing the com- mands and parameters. When a multiple byte field id is in error, the pointer points to the most significant byte of that field. Ultrastar 36LZX hard disk drive specifications...
Page 241 Figure 190. Progress Indication SKSV Sense-key specific valid Progress Indication is not valid. Progress Indication is valid. Progress Indication Indicates a percent complete in which the returned value is the numerator that has 10000h as its denominator. Ultrastar 36LZX hard disk drive specifications...
Page 242: Reserved (Byte 18 Through 19)
Loading Read-Only Table Bit.4 Loading Overlay Code Bit.3 Loading RAM Code Bit.2 Starting Spindle Motor Bit.1 Initiate Microcode Loading Bit.0 Testing Sector Buffer RAM Figure 191. Sense Data Byte 20 and 21 for POR Step Ultrastar 36LZX hard disk drive specifications...
Page 243 Not used Bit.6 12VDC Good Bit.5 Not used Bit.4 Not used Bit.3 Not Used Bit.2 Not Used Bit.1 Spindle Motor Spin-Up Failed Bit.0 EEPROM Data Validation Failed Figure 192. Sense Data Byte 22 POR Error Ultrastar 36LZX hard disk drive specifications...
Page 244 Log Parameter Table Read Failure Usage Table Read Failure RAM Mapping Failure-Invalid Usage ID RAM Mapping Failure-Invalid Usage Signature RAM Mapping Failure-Invalid Table Signature RAM Mapping Failure-Invalid Table Level Figure 193. Sense Data Byte 23 for POR Error Ultrastar 36LZX hard disk drive specifications...
Page 245 Drive Complete Bit.5 ID Find Bit.4 ID Miss Bit.3 Drive Busy Bit.2 End of Track Bit.1 Expected Sector Flag Bit.0 Event Handler Busy Figure 194. Sense Data Byte 20 and 21 for Read/Write Error Ultrastar 36LZX hard disk drive specifications...
Page 246 Bit.3 Bit.2 REQ Error Bit.1 11 bytes length of Thermal Asperity 1 byte length of Thermal Asperity (Read) Bit.0 Channel Fault Detect (Write) Figure 195. Sense Data Byte 22 and 23 for Read/Write Error Ultrastar 36LZX hard disk drive specifications...
Page 247: Physical Error Record (Byte 24 Thru 29)
0FFh. If cylinder, head, and sector have no relevance to the error, bytes 24 through 29 will all be set to 0FFh. This field is valid with Sense Key 1, 3 and 4 only. 12.2.14 Reserved (Byte 30 through 31) Reserved fields are filled with zero. Ultrastar 36LZX hard disk drive specifications...
Page 248 Equipment Status, 23 Error recovery procedure, 23 Acoustics, 52 Actuator, 13 Failure prediction ( PFA / S.M.A.R.T.), 42 Altitude, 38 Flammability, 55 Automatic Rewrite/Reallocate, 225 Formatted capacity, 15 Auxiliary connector, 68-pin model, 32 Full stroke seek time, 19 Average latency, 20 Average seek time, 19 German Safety Mark, 55 G-List, 25...
Page 249 Operating conditions, 38 Temperature, 38 Option jumper block, 33 Temperature warning, 43 Terminator power, 31 Throughput, 22 Performance characteristics, 18 Persistent Reservation, 127 P-List, 25 UL standard conformity, 55 Power connector, 27 Unit Attention Condition, 213 Power requirements, 40 Priority commands, 222 Probability of uncorrectable data error rate, 42 Vibration, 49 Random access, 22...

IBM Ultrastar 36LZX Specifications

1 General

2 Outline of the Drive

3 Fixed Disk Subsystem Description

4 Drive Characteristics

5 Data Integrity

6 Physical Format

7 Specification

8 SCSI Command Set

9 SCSI Status Byte

10 SCSI Message System

11 Additional Information

12 SCSI Sense Data

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Summary of Contents for IBM Ultrastar 36LZX