M8-DVR Product Manual 2.5” Hard Disk Drive September 04, 2013. Rev 1.
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TABLE OF CONTENTS CHAPTER 1 1.1 1.2 1.3 1.4 USER DEFINITION ..............................................................................................................................1 MANUAL ORGANIZATION ..................................................................................................................1 SATA .................................................................................................................................................2 REFERENCE .........................
5.3 SERVO SYSTEM ................................................................................................................................31 5.4 READ AND WRITE OPERATIONS ......................................................................................................31 5.4.1 The Read Channel...........................................................................................................31 5.4.2 The Write Channel .........................................................................
8.2.14 8.2.15 8.2.16 8.2.17 8.2.18 8.2.19 8.2.20 8.2.21 8.2.22 8.2.23 8.2.24 8.2.25 8.2.26 8.2.27 8.2.28 8.2.29 8.2.30 8.2.31 8.2.32 8.2.33 8.2.34 8.2.34.1 8.2.34.2 8.2.34.3 8.2.34.4 8.2.34.5 8.2.34.6 8.2.34.7 8.2.34.8 8.2.35 8.2.36 8.2.37 8.2.38 8.2.39 8.2.40 8.2.41 8.2.42 CHAPTER 9 9.1 9.2 9.3 Read FPDMA Queued (60h)...........................................................................................56 Read Log Extended (2Fh) ........................................................................
TABLE OF TABLES Table 3-1 Specifications ............................................................................................................................6 Table 3-2 Physical Specifications ..............................................................................................................7 Table 3-3 Logical Configurations ..............................................................................................................7 Table 3-4 Performance Specifications .................
SCOPE CHAPTER 1 SCOPE Welcome to the SpinpointTM M8 series of SamsungTM hard disk drive. This series of drives consists of the following models: ST320LM001, ST500LM012, ST750LM022, and ST1000LM024. This chapter provides an overview of the contents of this manual, including the intended user, manual organization, terminology and conventions. In addition, it provides a list of references that might be helpful to the reader. 1.
SCOPE 1.3 SATA The ATA (Advanced Technology Attachment) interface which was developed based on the IDE (Integrated Drive Electronics) has been around from 1980’s. As the PC processor speed has improved, so have the data rates of the HDD. The parallel ATA is reaching its limit of 133 MB/s data transfer rate. Serial implementation of ATA (SATA) will allow the data rate to run even faster so the processor will be utilized more efficiently.
DESCRIPTION CHAPTER 2 DESCRIPTION This chapter summarizes general functions and key features of the Spinpoint M8 hard disk drive, as well as the standards and regulations they meet. 2.1 Introduction The Samsung Spinpoint M8 2.5 inch hard disk drive is high capacity, high performance random access storage device, which uses non-removable 2.5-inch disks as storage media. Each disk incorporates thin film metallic media technology for enhanced performance and reliability.
DESCRIPTION 2.2 Key Features Key features of the Spinpoint M8 SATA hard disk drive includes: Formatted capacities are 320, 500, 750 GB, 1TB 9.5 ± 0.2 mm height form factor 5400 RPM Class 12 ms average seek time High accuracy rotary voice coil actuator with embedded sector servo Reliability for 24x7 video applications Support ATA standard PIO Mode 4/DMA Mode 2/Ultra DMA Mode 5 (UDMA 100) Serial ATA (SATA) Interface Supports SATA interface 6.0 Gbps(3.0 Gbps, 1.
DESCRIPTION 2.3 Standards and Regulations The Samsung Spinpoint M8 hard disk drive depends upon its host equipment to provide power and appropriate environmental conditions to achieve optimum performance and compliance with applicable industry and governmental regulations. Special attention has been given in the areas of safety, power distribution, shielding, audible noise control, and temperature regulation.
SPECIFICATIONS CHAPTER 3 SPECIFICATIONS This chapter gives a detail description of the physical, electrical and environmental characteristics of the Spinpoint M8 hard disk drive. 3.1 Specification Summary Table 3-1: Specifications DESCRIPTION Number of R/W heads ST320LM001 ST500LM012 ST750LM022 3/4 2 Maximum KBPI 2418 Flexible data TPI 400 Encoding method Noise Predictive PRML Interface Actuator type Servo type ST1000LM024 4 SATA 6.0 Gbps (3.0Gbps, 1.
SPECIFICATIONS 3.2 Physical Specifications Table 3-2: Physical Specifications DESCRIPTION ST320LM001 ST500LM012 ST750LM022 ST1000LM024 Physical dimensions Length 100.3 ± 0.4 mm [3.949 ± 0.0157 inch] Width 69.85 ± 0.25 mm [2.750 ± 0.0098 inch] Height 9.5 ± 0.2 mm [0.374 ± 0.0079 inch] Weight (max) 3.3 1 Disk 109 g [0.241 lb] / 2 Disk 117 g [0.
SPECIFICATIONS 3.4 Performance Specifications Table 3-4: Performance Specifications DESCRIPTION ST320LM001 ST500LM012 ST750LM022 Seek Time (RD/WRT, Typ) Average seek time 12/14 ms Track to track seek time 2/4 ms Full stroke seek time ST1000LM024 22/24 ms 5.6 ms Average Latency Data Transfer Rate (Max) buffer to/from media host to/from buffer Startup Time (Typ) Power on to Drive Ready Standby to Drive Ready 600 MB/s 5400 RPM Class Rotational Speed NOTES: 145Mbits/s 3.0 sec 2.
SPECIFICATIONS 3.5 Power consumption Table 3-5: Power consumption DESCRIPTION ST320LM001 ST500LM012 ST750LM022 ST1000LM024 Rated Voltage V +5 Current A 0.85 Power Consumption Start Up mA 1000 Low Power Idle Watt 0.7 Read/Write Watt 2.3 Seek Watt 2.0 Stand by Watt 0.2 Sleep Watt 0.
SPECIFICATIONS 3.6 Environmental Specifications Table 3-6: Environmental Specifications DESCRIPTION ST320LM001 ST500LM012 ST750LM022 ST1000LM024 Ambient Temperature (Drive temperature measured on position of figure 3-1 should be max 70°C) Operating 0°C ~ 60°C Non-operating -40°C ~ 70°C Max.
SPECIFICATIONS Figure 3-1: Measurement Position. Spinpoint M8-DVR OEM Product Manual REV 1.
SPECIFICATIONS 3.7 Reliability Specifications Table 3-7: Reliability Specifications DESCRIPTION ST320LM001 ST500LM012 <1 sector in 1014 bits Annualized Failure rate (AFR) Load/Unload Cycles Ambient 3.8 ST1000LM024 <10 in 1011 bits Recoverable Read Error Non-Recoverable Read Error ST750LM022 0.55% 600,000 Annualized Failure Rate (AFR) The product will achieve an Annualized Failure Rate (AFR) of 0.55% when operated in an environment of ambient air temperatures of 25°C.
INSTALLATION CHAPTER 4 INSTALLATION This chapter describes how to unpack, mount, configure and connect a Spinpoint M8 hard disk drive. It also describes how to install the drive in systems. 4.1 Space Requirements Figure 4-1 shows the external dimensions of the drive. Figure 4-1: Mechanical Dimension Spinpoint M8-DVR OEM Product Manual REV 1.
INSTALLATION 4.2 Unpacking Instructions (1) Open the shipping container of the Spinpoint M8 hard disk drive. (2) Lift the packing assembly that contains the drive out of the shipping container. (3) Remove the drive from the packing assembly. When you are ready to install the drive, remove it from the ESD (Electro Static Discharge) protection bag. Take precautions to protect the drive from ESD damage after removing it from the bag.
INSTALLATION 4.3.1 Orientation Figure 4-2 shows the physical dimensions and mounting holes located o n each side of the drive. The mounting holes on Spinpoint M8 hard disk drive allow the drive to be mounted in any direction. Figure 4-2: Mounting Dimensions Spinpoint M8-DVR OEM Product Manual REV 1.
INSTALLATION 4.3.2 Ventilation The Spinpoint M8 hard disk drive is designed to operate without the need of a cooling fan provided the ambient air temperature does not exceed 60ºC. Any user-designed cabinet must provide adequate air circulation to prevent exceeding the maximum temperature. 4.4 Cable Connectors The Interface/Power connector consists of two cables; a SATA 15-pin DC power connector, and the standard SATA 7-pin Interface connector. 4.4.
INSTALLATION Computer mainboard or ... Serial ATA host adapter Figure 4-5 Connectivity t o Drives Figure 4-5 illustrates Connectivity of SATA to drives. It can be used with a SATA host adapter (lower picture) or directly into motherboard that has the SATA built-in host bus adapter (upper picture). Spinpoint M8-DVR OEM Product Manual REV 1.
INSTALLATION SATA Device Connector Definition Please note that all pins are in a single row, with a 1.27 mm (50 mil) pitch diameter. There are three power pins for each voltage source. One pin from each voltage is utilized for pre-charge when installed in a blind- mate backplane configuration. The notes on the mating sequence apply to the case of backplane blind mate connector. When the drive is inserted, the ground pins and the pre-charge pins are in contact first followed by the remaining pins.
INSTALLATION SATA-Bus Interface Connector The SATA-Bus interface connector on the drive connects the drive to an SATA host bus adapter or an on- board SATA adapter in the computer. Figure 4.6 illustrates the power, SATA, and factory use only jumper. Figure 4.7 shows pin locations on the SATA drive. Figure 4-6 HDD Power, SATA Interface, and Factory Jumper Connector Spinpoint M8-DVR OEM Product Manual REV 1.
INSTALLATION Figure 4-7 Pin Locations on the Drive PCBA Spinpoint M8-DVR OEM Product Manual REV 1.
INSTALLATION 4.5 Drive Installation The Spinpoint M8 hard disk drive can be installed in a SATA compatible system Figure 4-8 indicates the interface and power cable connections required for proper drive installation. Figure 4-8 DC Power Connector and SATA-Bus Interface Cable Connections Spinpoint M8-DVR OEM Product Manual REV 1.
CHAPTER 5 DISK DRIVE OPERATION This chapter describes the operation of the Spinpoint M8 hard disk drive functional subsystems. It is intended as a guide to the operation of the drive, rather than a detailed theory of operation. 5.1 Head / Disk Assembly (HDA) The Spinpoint M8 hard disk drive consists of a mechanical sub-assembly and a printed circuit board assembly (PCBA), as shown in Figure 5-1. This section describes the mechanism of the drive.
-Cover Assembly Figure 5-1: Exploded Mechanical View Spinpoint M8-DVR OEM Product Manual REV 1.
5.1.3 Disk Stack Assembly The disk stack assembly in the Spinpoint M8 hard disk drive consists of 1 or 2 disks and disk spacers secured on the hub of the spindle motor assembly by a disk clamp. The glass disks have a sputtered thin-film magnetic coating. 5.1.4 Head Stack Assembly The head stack assembly consists of an E-block/coil sub-assembly, read/write heads, a flexible circuit, and bearings. The E-block/coil sub-assembly is assembled with an E-block and over-molded coil.
5.2 D r i v e Electronics The Spinpoint M8 hard disk drive attains its intelligence and performance through the specialized electronic components mounted on the PCBA. The components are mounted on one side of the PCBA. The Preamplifier IC is the only electrical component that is not on the PCBA. It is mounted on the flexible circuit inside the HDA. Locating the Preamplifier IC as close as possible to the read/write heads via surface mount technology improves the signal to noise ratio. 5.2.
-bit ARM Disk Preamp Motor Control Buffer Control Block Format Sequencer & Read Channel Host Interface Block SATA Host Bus (6 Gbps) Disk Controller DDR Figure 5-2: Spinpoint M8 Functional Block Diagram Spinpoint M8-DVR OEM Product Manual REV 1.
5.2.2.1 The Host Interface Control Block The SATA Disk Controller provides direct interface to an SATA bus. It is compatible with ATA 7 Specs. It provides a means for the host to access the Task File registers used to control the transfer of data between host memory and the disk drive.
Additional functionality is provided in the Buffer Control block through the following features: Increased automation to support minimal latency read operations with minimal latency. Capability to support the execution of multiple consecutive Auto-Write commands without loss of data due to overwriting of data. Auto write pointer. A disk sector counter that can monitor the transfers between the disk and buffer. Read/Write cache support. 5.2.2.
5.2.2.6 Power Management Power management features are incorporated into each block of the Spinpoint M8. This allows the designer to tailor the amount of power management to the specified design. Other power management features include: Independent power management control for each block. DSP block powered down and up when needed. Disk Sequencer and associated disk logic powered up when the Disk Sequencer is started.
5.2.3.4 Analog Anti-Aliasing Low Pass Filter The 7th order equal-ripple analog filter provides filtering of the analog signal from AGC before it’s being converted to digital signal with the ADC. Its main function is to avoid aliasing for the ADC circuit. 5.2.3.5 Analog to Digital Converter (ADC) and FIR The output of the analog filter is quantified using a 6 bit FLASH ADC. The digitized data is then equalized by the FIR to the NPV target response for Viterbi detection.
5.3 Servo System The Servo System controls the position of the read/write heads and holds them on track during read/write operations. The Servo System also compensates for MR write/read offsets and thermal offsets between heads on different surfaces and for vibration and shock applied to the drive. The Spinpoint M8 hard disk drive is an Embedded Sector Servo System. Positioning information is radially located in evenly spaced servo sectors on each track.
5.4.2 The Write Channel The signal path for the Write Channel follows the reverse order of that for the Read Channel. The host transmits data via the AT bus to the 88i9422 Interface Controller. The Buffer Controller section of the 88i9422 stores the data in the cache. Because the data is transmitted to the drive at a rate that exceeds the rate at which the drive can write data to the disk, data is stored temporarily in the cache.
disk requests are sequential. It takes microseconds rather than milliseconds to retrieve this cached data. Thus Read Caching can provide substantial time savings during at least half of all disk requests. For example, Read Caching could save most of the disk transaction time by eliminating the seek and rotational latency delays that prominently dominate the typical disk transaction. Read Caching operates by continuing to fill its cache memory with adjacent data after transferring data requested by the host.
5.5.3 Defect Management The Spinpoint M8 hard disk drive media is scanned for defects. After defect scanning, the defective sectors are saved in the defect list. A defect encountered in the manufacturing process is slipped to the next physical sector location. All logical sector numbers are pushed down to maintain a sequential order of data. The read/write operation can “slip” over the defective sectors so that the only performance impact is idle time. 5.5.
CHAPTER 6 6.1 SATA II INTERFACE Introduction The Spinpoint M8 disk drive is equipped with an industry standard SATA Interface fully supports and enhances PC mass storage requirements. The SATA interface conforms to the Serial ATA standards in Cabling, in Physical Signals, and in Logical Programming schemes. The Spinpoint M8 disk drive joins the industry premiere VLSI circuitry with ingenious programming skill that does not compromise performance or reliability.
DATA CHARACTER-A data character is a combination of a byte value with the control variable equal to D. DWORD-A Dword is thirty-two (32) bits of data. A Dword may be represented as 32 bits, as two adjacent words, or as four adjacent bytes. When shown as bits the least significant bit is bit 0 and most significant bit is bit 31. The most significant bit is shown on the left. When shown as words the least significant word (lower) is word 0 and the most significant (upper) word is word 1.
PRIMITIVE-A primitive is a single Dword of information that consists of a control character in byte 0 followed by three additional data characters in bytes 1-3. SHADOW REGISTER BLOCK REGISTERS-Shadow Register Block registers are interface registers used for delivering commands to the device or posting status from the device. SQUELCH-This block establishes a limit so that detection of a common mode signal can be properly accomplished. WORD-A word is sixteen (16) bits of data.
In LBA mode the sectors on the device are assumed to be linearly mapped with an initial definition of: LBA 0 = (Cylinder 0, head 0, and sector 1). Irrespective of translate mode geometry set by the host, the LBA address of a given sector does not change: 6.3.2 I/O Register - Address The communication to or from drive is through the SATA interface. To the host system the SATA drive emulates a parallel ATA drive. As such, the following registers are not accessed directly host to drive.
6.3.3.2 Device Control Register (ex. 3F6h) The bits in this register are as follows: • • • • 7 6 5 4 3 2 1 HOB R R R R SRST nIEN 0 0 HOB is the High Order Byte used for host to access the Extended Registers in the 48-bit LBA mode SRST is the host software reset bit. The drive is held reset when this bit is set. If two disk drives are daisy chained on the interface, this bit resets both simultaneously. nIEN is the enable bit for the drive interrupt to the host.
• ABRT (Aborted Command) indicates the requested command has been aborted due to a drive status error (Not Ready, Write Fault, etc.) or because the command code is invalid. • # Indicates the content of this bit is command dependent. NOTE: Unused bits are cleared to zero. 6.3.4.5 Sector Count Register and Sector Count Extended Register (Ex. 1F2h) This register contains the number of sectors of data requested to be transferred on a read or write operation between the host and the drive.
• • • • DEV is reserved. Bit0-bit3 is defined for the binary coded address of the head to be selected in CHS mode (e.g. if H3 through HS0 are 0011b, respectively, then head 3 will be selected). HS3 is the most significant bit. In 28 bit LBA mode bit0-3 HS3 contains bits 24-27 of the LBA. After command completion, this register is updated to reflect the currently selected disk address. LBA is to select the Logical Block Addressing Mode. When LBA=0, disk addressing is by CHS mode.
CHAPTER 7 SATA II FEATURE SET This section describes the SATA II feature set supported in the Samsung Spinpoint M8 drive. 7.1 Device Activity Signal Spinpoint M8 implemented the Device Activity Signal on the SATA power connector pin-11. The implementation is based on the SATA II specification. This activity signal is used for indicating the drive activities, including the queued and non-queued commands. For the host can use this signal to indicate the command activity. 7.
If the NCQ command is executed with error, the drive will report the error information from the Read Log Extended log page 10h. This is special log page for the NCQ command error reporting. The details of the error information are defined in the SATA II specification. When the commands of queue and non-queue are mixed, the Spinpoint M8 drive will report command error. This will ensure the queue sequence is correctly received.
7.6 Software Settings Preservation Spinpoint M8 supports SATA II Software Settings Preservation requirements. The settings of the following items will be preserved across device receiving of COMRESET. This will ensure the device operates on the intended settings even if the COMRESET is received. A SATA bus may generates COMRESET on an Asynchronous Signal Loss (ASL) case which may be caused by noise on the bus.
CHAPTER 8 8.1 ATA COMMAND DESCRIPTIONS Command Table Commands are issued to the drive through SATA interface, by way of a Command Packet. This table list commands supported by the Spinpoint M8 HDD. Extended commands are unique to the 48-bit Address feature set.
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 Read Verify *3 Read Verify Extended *3 Recalibrate *3 Security Disable Password Security Erase Prepare Security Erase Unit Security Freeze Lock Security Set Password Security Unlock Seek *3 Set Features Set Max Address Set Max Address Extended Set Multiple Mode Sleep SMART Standby Standby Immediate Write Buffer Write DMA Write DMA Extended Write FPDMA Queued Write Log Extended Write Multiple Write Multiple Extended Write Sector(s) Write Sector(s) Extend
8.2 Command Descriptions 8.2.1 Check Power Mode (E5h) This command checks the power mode. If the drive is in, going to, or recovering from the Standby Mode, the drive sets BSY, sets the Sector Count register to 00h, clears BSY, and generates an interrupt. If the drive is in the Idle Mode, the drive sets BSY, sets the Sector Count register to FFh, clears BSY, and generates an interrupt. 8.2.2 Download Micro Code (92h) This command enables the host to alter the drive’s Micro-code. vendor specific. 8.2.
The Device Configuration Set command allows a device manufacturer or a PC manufacturer to reduce the set of optional commands, modes, or feature sets supported by a device as indicated by a Device Configuration Identify command. The Device Configuration Set Command transfers an overlay that modifies some of the bits in words 63, 82, 83, 84, and 88 of the Identify Device command. When the bits in these words are cleared, the device shall no longer support the indicated command, mode, or feature set.
8.2.4 Execute Device Diagnostics (90h) This command performs the internal diagnostic tests implemented by the drive. The Diagnostic Code written to the Error register is a unique 8-bit code. Table 8-4 Diagnostic Codes Code 8.2.5 Description 01h No error detected 02h Formatter device error 03h Sector 04h ECC circuitry error 05h Controlling microprocessor error buffer error Flush Cache (E7h, EAh: extended) This command is used by the host to request the drive to flush the write cache.
Some parameters are defined as a string of ASCII characters. For the string “Copyright,” the character ‘C’ is the first byte, ‘o’ is the 2nd byte, etc. When such fields are transferred, the order of transmission is: 1st character (‘C’) is on bits DD15 through DD8 of the first word 2nd character (‘o’) is on bits DD7 through DD0 of the first word 3rd character (‘p’) is on bits DD15 through DD8 of the second word 4th character (‘y’) is on bits DD7 through DD0 of the second word, etc.
Word Content 54 55 56 57-58 XXXXh XXXXh XXXXh XXXXh 59 0XXXh 60-61 62 XXXXh 0000h 63 XX07h 64 0003h 65 0078h 66 0078h 67 0078h 68 0078h 69-79 71-74 0000h 0000h 75 001fh 76 1F06h 77 0000h 78 004Ch 79 0040h Description 2 1=the fields reported in word 88 are valid 1 1=the fields reported in words 64-70 are valid 0 1=the fields reported in words 54-58 are valid (Obsolete) Number of current logical cylinders (Obsolete) Number of current logical heads (Obsolete) Number of current l
Word Content 80 01FFh 81 0028h 82 746Bh 83 7F69h 84 6123h Description 3 Device initiating interface power management enabled 2 DMA Setup Auto-Activate optimization enabled 1 Non-zero buffer offsets in DMA Setup FIS enabled 0 Reserved (set to 0) Major version number 15-0 ATA-1, ATA-2, ATA-3 and ATA/ATAPI-4, 5, 6, 7 Minor version number 15-0 ATA/ATAPI-7 X3T13 1532D revision 0 Command set supported.
Word Content 85 7469h 86 BC41h 87 6123h Description 3 1=Media Card Pass Through command feature set supported 2 1=Media serial number supported 1 1=SMART self-test supported 0 1=SMART error logging supported Command set/feature enabled.
Word Content 88 007Fh 89 90 91 92 93 95 96 97 98-99 100-103 104 105 106 107 108 0000h 0000h 0080h FFFEh 0000h 0000h 0000h 0000h 0000h xxxxh 0000h 0000h 4000h 109 xxxxh 110 111 112-115 116 117-118 119-126 127 128 xxxxh xxxxh xxxxh 0000h xxxxh 0000h 0000h 0021h xxxxh Description Ultra DMA transfer modes 15-8 Current active Ultra DMA transfer mode 15 Ultra DMA mode 7 14 Ultra DMA mode 6 13 Ultra DMA mode 5 12 Ultra DMA mode 4 11 Ultra DMA mode 3 10 Ultra DMA mode 2 9 Ultra DMA mode 1 8 Ultra DMA mod
Word 129-159 160 161-175 176-205 206-254 255 8.2.8 Content 0000h 0000h 0000h 0000h 0000h xxxxh Description 2 1= Security locked 1 1= Security enabled 0 1= Security supported Vendor specific CFA power mode 1 Reserved for CFA Current media serial number Reserved Integrity word 15-8 Checksum 5 Signature (A5h) Idle (E3h) This command causes the drive to enter the Idle Mode, clear BSY, and generate an interrupt. The interrupt is generated even though the drive may not have fully transitioned to Idle Mode.
8.2.10 Initialize Device Parameters (91h) This command is obsolete in the ATA7 specification. The supporting of this command is for backward compatibility purpose. The use of this command is beyond the ATA standard and not recommended by the manufacture. This command enables the host to set the number of sectors per track and the number of heads minus 1, per cylinder. Upon receipt of the command, the drive sets BSY, saves the parameters, clears BSY, and generates an interrupt.
If the drive enters NCQ mode and a non-queue command is received, the drive will respond with error to inform host a queue command been overlapped with non-queue. If a queue tag is not finished and another same tag command is received, the drive will response with error to inform host a duplicated tag is received. Error information is reported according to the SATA II specification. A read Log Extended command with log page 10 is required to retrieve the error information. 8.2.
The contents of the Command Block registers, following the transfer of a data block, which had a sector in error, are undefined. The host should retry the transfer as individual requests to obtain valid error information. Subsequent blocks are transferred only if the error was a correctable data error. All other errors cause the command to stop after transfer of the block, which contained the error. Interrupts are generated when DRQ is set at the beginning of each block. 8.2.
8.2.21 Recalibrate (10h) This command is obsolete in the ATA7 specification. The supporting of this command is for backward compatibility purpose. The use of this command is beyond the ATA standard and not recommended by the manufacturer. This command moves the read/write heads from anywhere on the disk to cylinder 0. Upon receipt of the command, the drive issues a seek to cylinder zero. The drive then waits for the seek to complete before updating status, clearing BSY, and generating an interrupt.
Table 8-8 Security Erase Unit Password Word 0 Content Control word. Bit 0 password Bit 1 1-16 17-255 8.2.25 Identifier 0= compare User password 1= compare Master Erase mode 0= Normal erase 1= Enhanced erase Bit (15:2) Reserved Password (32 bytes) Reserved Security Freeze Lock (F5h) The SECURITY FREEZE LOCK command shall set the device to frozen mode. After command completion any other commands that update the device Lock mode shall be command aborted.
Table 8-10 Identifier and security level bit interaction Identifier User Level High User Medium Master High or Medium Command result The password supplied with the command shall be saved as the new User p ass wo rd . The Lock mode shall be enabled from the next power-on or hardware reset. The device shall then be unlocked by either the User password or the previously set Master password. The password supplied with the command shall be saved as the new User p ass wo rd .
Table 8-11 Set Features Register Definitions Code Description 02h Enable Write Cache 03h Set transfer mode based on value in Sector Count register 06h Enable Power-Up in Standby Mode 07h Power-Up in Standby feature set device spin up 10h Enable use of SATA features SC=02: DMA Setup FIS Auto Activate automation SC=03: Device-initiated interface power state transition SC=06: Software Settings Preservation 44h Obsolete (Set VU ECC length) 55h Disable read look-ahead feature 82h Disable Write
Setting of the UDMA mode will not alter the speed of the SATA interface transfer. SATA transfer speed is depending upon the negotiated interface speed of either Gen III 6.0 Gbps ~ Gen I 1.5 Gbps. The mode setting in the Set Feature command is for backward compatibility purpose. 8.2.30 Set Max Address (F9h, 37h: extended) Set Max Address command is for device implement the Host Protected Area feature set. The drive maximum address can be changed according to the command issued from the host.
8.2.34 SMART (B0h) Individual SMART commands are identified by the value placed in the Feature resister. Below depicts these Feature register values. Table 8-14 SMART Feature Registers Values Feature Value D0h D1h D2h D3h D4h D5h D6h D7h D8h D9h DAh DBh DCh-DDh DEh DFh 8.2.34.
A value of F1h written by the host into the device’s Sector Count Register before issuing this command shall cause this feature to be enabled. Any other meaning of this value or any other non-zero value written by the host into this register before issuing this command may differ from device to device. 8.2.34.3 Smart enable operations (D8h) This command enables all SMART capabilities within the device. Prior to receipt of this command SMART data are neither monitored nor saved by the device.
8.2.34.5 Smart read data (D0h) This command returns the Device SMART data structure to the host.
Data Structure Revision Number The Data Structure Revision Number identifies which version of this data structure is implemented by the device. This revision number identifies both the Attribute Value and Attribute Threshold Data structures. SMART Attribute Data The data structure of the SMART attribute table is defined for a block of 12-byte length. Total number of the attributes is 30. Each attribute defines Attribute ID, Status Flag, Attribute Value, and Vendor Specific bytes.
The SMART attribute Status Flags are: Table 8-16 SMART Attribute Status Flags Bit Name Description 0 Pre failure/advisory 0= an attribute value less than or equal to its corresponding attribute threshold indicates an advisory condition where the usage or age of the device has exceeded its intended design life period. 1= an attribute value less than or equal to its corresponding attribute threshold indicates a pre-failure condition where imminent loss of data is being predicted.
Each attribute data structure is assigned an attribute ID. Any non-zero value in the attribute ID number indicates an active attribute. Valid values for this byte are found from 0x01 through 0xff.
The total time in seconds to complete off-line data collection activity word specifies how may seconds the device requires to complete its sequence of off-line data collection activity. Valid values for this word are from 0001h to FFFFh. Self-test execution status byte The self-test execution status byte reports the execution status of the self-test routine.
device shall suspend off-line data collection activity after an interrupting command and resume off-line data collection activity after some vendor-specified event. Bit 3 (off-line read scanning implemented bit) - If this bit is cleared to zero, the device does not support off-line read scanning. If this bit is set to one, the device supports off-line read scanning Bit 4 (self-test implemented bit) – If this bit is cleared to zero, the device does not implement the Short and Extended self-test routines.
8.2.35 Standby (E2h) This command causes the drive to enter Standby Mode. See 6.6.3 for the protocol. The drive may return the interrupt before the transition to Standby Mode is completed. If the drive is already spun down, the spin down sequence is not executed. 8.2.36 Standby Immediate (E0h) This command causes the drive to enter Standby Mode. See 6.6.3 for the protocol. The drive may return the interrupt before the transition to Standby Mode is completed.
8.2.40 Write Long (32h) This command is obsolete in the ATA7 specification. The supporting of this command is for backward compatibility purpose. The use of this command is beyond the ATA standard and not recommended by the manufacturer. This command is similar to the Write Sectors command, except that it writes the data and the ECC bytes directly from the sector buffer; the drive does not generate the ECC bytes itself. Only single sector Write Long operations are supported.
If retries are disabled and two index pulses have occurred without error-free reading of the requested ID, an ID Not Found error is posted. If retries are enabled, up to a predefined number of attempts may be made to read the requested ID before posting an error. If the ID is read correctly, the data loaded in the buffer is written to the data field of the sector, followed by the ECC bytes.
CHAPTER 9 9.1 MAINTENANCE General Information Samsung Spinpoint M8 hard disk drive achieves high reliability through their mechanical design and extensive use of microelectronics. Their design allows fast, easy sub-assembly replacement without adjustments, greatly reducing the amount of downtime required for unscheduled repairs. 9.2 Maintenance Precautions When servicing a drive, the service technician should observe the following precautions to avoid damage to the drive or personal injury.
Fig. 9-1: HDD handling guide - Please handle HDD by side surfaces! Fig. 9-2: HDD handling guide - Do not Touch Cover and PCB! Fig. 9-3: HDD handling guide - Do Not Stack! Spinpoint M8-DVR OEM Product Manual REV 1.
Fig. 9-4: HDD handling guide - Prevent Shocks! 9.3 Service and Repair To determine the warranty for a specific drive, use a web browser to access the following web page http://www.seagate.com/support/warranty-and-returns From this page, click on the “Verify Your Warranty” link. You will be asked to provide the drive serial number, model number (or part number) and country of purchase. The system will display the warranty information for your drive. Spinpoint M8-DVR OEM Product Manual REV 1.
