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Spinpoint M8 Product Manual REV 2.6

22

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.

The  head  /  disk  assembly   (HDA)  contains   the  mechanical    sub-assemblies   of  the  drive,  which  are  sealed
between   the  aluminum-alloy   base  and  cover.     The HDA consists of the base casting assembly (which
includes  the  DC  spindle  motor  assembly),  the  disk  stack  assembly,  the  head  stack  assembly,  and  the  rotary
voice  coil  motor  assembly  (which  includes  the  actuator  latch  assembly).     The  HDA  is  assembled  in  a  clean
room. These subassemblies cannot be adjusted or field repaired.

CAUTION: To avoid contamination in the HDA, never remove or adjust its cover
and seals. Disassembling the HDA voids your warranty.

The  Spinpoint  M8  hard  disk  drive  models  and  capacities  are  distinguished  by  the  number  of  heads  and
disks.  The  ST320LM001  have  one  (1)  disk  and two  (2)  read/write  heads.  The  ST500LM012  has  one  (1)  disk
and  two  (2)  heads.    The  ST750LM022  have  two  (2)  disks  and  t h r e e / four  (3/4)  read/write  heads.  The
ST1000LM024 has two (2) disks and four (4) read/write heads.

5.1.1 Base Casting Assembly

A one piece, aluminum-alloy base casting provides a mounting surface for the drive mechanism and PCBA.
The base casting also serves as the flange for the DC spindle motor assembly. A gasket provides a seal
between the base and cover castings that enclose the drive mechanism.

5.1.2 DC Spindle Motor Assembly

The   DC   spindle   motor   assembly   consists   of   the   brush-less   three-phase   motor,   spindle   bearing   (FDB)
assembly,    disk    mounting    hub,    and    a    labyrinth    seal.    The  entire  spindle  mo to r  assembl y  is
completely  enclosed  in  the  HDA  and  integrated  to  the  base  casting.     The  labyrinth  seal  prevents  bearing
lubricant from coming out into the HDA.   The motor rotates the spindle shaft at 5400 rpm.

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Содержание Spinpoint M8

Страница 1: ...M8 Product Manual 2 5 Hard Disk Drive March 6 2013 Rev 2 6...

Страница 2: ...and one terabyte or TB equals one trillion bytes Your computer s operating system may use a different standard of measurement and report a lower capacity In addition some of the listed capacity is us...

Страница 3: ...vity 17 4 5 DRIVE INSTALLATION 21 CHAPTER 5 DISK DRIVE OPERATION 22 5 1 HEAD DISK ASSEMBLY HDA 22 5 1 1 Base Casting Assembly 22 5 1 2 DC Spindle Motor Assembly 22 5 1 3 Disk Stack Assembly 24 5 1 4 H...

Страница 4: ...tor Count Register and Sector Count Extended Register Ex 1F2h 40 6 3 4 6 Cylinder High Register and Cylinder High Extended Register Ex 1F5h 40 6 3 4 7 Cylinder Low Register and Cylinder Low Extended R...

Страница 5: ...9h 37h extended 63 8 2 31 Set Multiple Mode C6h 63 8 2 32 Sleep E6h 63 8 2 33 Standby E2h 63 8 2 34 SMART B0h 64 8 2 34 1 Smart disable operations D9h 64 8 2 34 2 Smart enable disable attribute auto s...

Страница 6: ...fy data structure 49 Table 8 4 Diagnostic Codes 50 Table 8 5 IDENTIFY DEVICE information 51 Table 8 6 Automatic Standby Timer Periods 56 Table 8 7 Security password content 60 Table 8 8 Security Erase...

Страница 7: ...at might be helpful to the reader 1 1 User Definition The Spinpoint M8 product manual is intended for the following readers Original Equipment Manufacturers OEMs Distributors 1 2 Manual Organization T...

Страница 8: ...channel works independently There is no sharing of interface master slave drive configuration and no master slave jumper settings This is different from Parallel ATA PATA architecture where 2 drives p...

Страница 9: ...ctronics The drive s electrical interface is compatible with all mandatory optional and vendor specific commands within the ATA specification Drive size conforms to the industry standard 2 5 inch form...

Страница 10: ...SR Pin 11 Device Activity Signal Activity LED Pin 11 Staggered Spin up Control Auto Activate DMA Setup FIS Native Command Queuing with queue depth of 32 First Party DMA Physical Event Counters Softwar...

Страница 11: ...perature regulation The Spinpoint M8 hard disk drive satisfies the following standards and regulations Underwriters Laboratory UL Standard 1950 Information technology equipment including business equi...

Страница 12: ...e Spinpoint M8 hard disk drive 3 1 Specification Summary Table 3 1 Specifications DESCRIPTION ST320LM001 ST500LM012 ST750LM022 ST1000LM024 Number of R W heads 2 3 4 4 Maximum KBPI 2418 Flexible data T...

Страница 13: ...5 mm 2 750 0 0098 inch 9 5 0 2 mm 0 374 0 0079 inch 1 Disk 109 g 0 241 lb 2 Disk 117 g 0 258 lb 3 3 Logical Configurations Table 3 3 Logical Configurations 1MB 1 000 000 Bytes 1GB 1 000 000 000 Bytes...

Страница 14: ...erage is incurred after a seek completion prior to reading or writing user data Startup time is the time elapsed between the supply voltages reaching operating range and the drive being ready to accep...

Страница 15: ...ow Power Idle Watt 0 7 Read Write Watt 2 3 Seek Watt 2 0 Stand by Watt 0 2 Sleep Watt 0 2 Power Requirements Tolerance For 5V 5 Ripple 0 30MHz mVp p 100 Supply Rise Time us msec 10us 100ms Supply Fall...

Страница 16: ...ration temperature 0 C 60 C 40 C 70 C 20 C 20 hr Relative Humidity non condensing Operation Non operation Maximum wet bulb temperature Operating Non operating 5 90 5 95 30 C 40 C Altitude relative to...

Страница 17: ...Spinpoint M8 Product Manual REV 2 6 11 SPECIFICATIONS Figure 3 1 Measurement Position...

Страница 18: ...ifications Table 3 7 Reliability Specifications DESCRIPTION ST320LM001 ST500LM012 ST750LM022 ST1000LM024 Recoverable Read Error 10 in 1011 bits Non Recoverable Read Error 1 sector in 1014 bits MTBF PO...

Страница 19: ...LLATION 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 th...

Страница 20: ...protect the drive from ESD damage after removing it from the bag CAUTION During shipment and handling the anti static ESD protection bag prevents electronic component damage due to electrostatic disc...

Страница 21: ...ATION 4 3 1 Orientation Figure 4 2 shows the physical dimensions and mounting holes located on each side of the drive The mounting holes on Spinpoint M8 hard disk drive allow the drive to be mounted i...

Страница 22: ...within a point to point configuration with the SATA host port There is no master or slave relationship within the devices Thus SATA does not require master slave jumper The drive interface section of...

Страница 23: ...inboard or Serial ATA host adapter Figure 4 5 Connectivity to Drives Figure 4 5 illustrates Connectivity of SATA to drives It can be used with a SATA host adapter lower picture or directly into mother...

Страница 24: ...n the SATA interface and power connector It is based on SATA 1 0a Specifications Note that pin numbers is designated from the pin farthest from power segment Table 4 1 SATA Connector Pin Definitions D...

Страница 25: ...face 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 show...

Страница 26: ...Spinpoint M8 Product Manual REV 2 6 20 INSTALLATION Figure 4 7 Pin Locations on the Drive PCBA...

Страница 27: ...nstallation 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...

Страница 28: ...contamination in the HDA never remove or adjust its cover and seals Disassembling the HDA voids your warranty The Spinpoint M8 hard disk drive models and capacities are distinguished by the number of...

Страница 29: ...Spinpoint M8 Product Manual REV 2 6 23 Cover Assembly Figure 5 1 Exploded Mechanical View...

Страница 30: ...o the magnet yoke Pawl latch and rubber crash stops mounted on a magnetic yoke physically prevent the head s from moving beyond the designed inner boundary into the spindle or off the disk surface Cur...

Страница 31: ...ore to perform the ATA interface control buffer data flow management disk format read write control and error correction functions of an embedded disk drive controller The DSP communicates with the di...

Страница 32: ...t Manual REV 2 6 26 Disk Preamp Motor Control Format Sequencer Read Channel Host Interface Block SATA Host Bus 6 Gbps 32 bit ARM Disk Controller Buffer Control Block DDR Figure 5 2 Spinpoint M8 Functi...

Страница 33: ...byte transfers Additional functionality is provided in the Host Interface Block by the following features Programmable transfer length for automatic ECC byte transfer on the AT bus Support of both LBA...

Страница 34: ...programmed by the user to automatically control all single track format read and write operations From within the sequencer micro program the Disk Control block can automatically deal with such real...

Страница 35: ...ctions include a time base generator AGC circuitry asymmetry correction circuitry ASC analog anti aliasing low pass filter analog to digital converter ADC digital FIR filter timing recovery circuits V...

Страница 36: ...ted 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 bi...

Страница 37: ...a position loop with velocity damping Settle mode does not use feed forward 3 Velocity control mode is used for acceleration and deceleration of the actuator for seeking of two or more tracks A seek o...

Страница 38: ...switches the Preamplifier and Write Driver IC to write mode and selects a head Once the Preamplifier and Write Driver IC receives a write gate signal it transmits current reversals to the head which...

Страница 39: ...FY 3Ch INITIALIZE DEVICE PARAMETER 91h SLEEP 99h E6h STANDBY IMMEDIATELY 94h E0h READ BUFFER E4h WRITE BUFFER E8h WRITE SAME E9h 5 5 2 Write Caching Write caching improves both single and multi sector...

Страница 40: ...d sector areas determined by the HDD firmware 5 5 5 SMART The intent of Self monitoring Analysis and Reporting Technology SMART is to protect user data and to minimize the likelihood of unscheduled sy...

Страница 41: ...mes within the characters of the ALIGN primitive CODE VIOLATION A code violation is an error that occurs in the reception process as a result of 1 a running disparity violation or 2 an encoded charact...

Страница 42: ...in First party DMA mode uses First party DMA as a primary communications method between the host and the device A software driver uses legacy mode commands to place the device into First party DMA mod...

Страница 43: ...30 2004 available from http www serialata org retrieved and available on Jan 6 2005 6 3 1 Signal Descriptions For data packets and additional information please consult the document entitled Serial A...

Страница 44: ...O registers Command Block registers When read When written Data Data Error Features Current Features Previous Sector Count Current Sector Count Previous Sector Count Current Sector Count Previous LBA...

Страница 45: ...es Register and Feature Extended Register Ex 1F1h This register is command specific and used to enable and disable features of the interface e g by the Set Features command to enable and disable cachi...

Страница 46: ...nded Register Ex 1F5h In CHS mode the Cylinder High Register contains the high order bits of the starting cylinder address for any disk access In LBA mode the Cylinder High Register contains bits 16 2...

Страница 47: ...d If the host reads this register when an interrupt is pending it is considered to be the interrupt acknowledge Any pending interrupt is cleared whenever this register is read 7 6 5 4 3 2 1 0 BSY DRDY...

Страница 48: ...e host floating devices that support staggered spin up disable through pin 11 shall enable staggered spin up 7 3 Auto Activate in DMA Setup FIS Spinpoint M8 implemented the option for the Auto Activat...

Страница 49: ...hy Event Counter Supports Identifier Bits 11 0 Mandatory Optional Supported Description 000h Mandatory Y No counter value marks end of counters in the page 001h Mandatory Y Command failed due to an IC...

Страница 50: ...sfer Mode o Read Look Ahead Set Multiple Mode 7 7 SATA Power Management Spinpoint M8 supports SATA power management from the SATA I and SATA II specifications The SATA power management is designed to...

Страница 51: ...Device Configuration B1h Overlay 1 Execute Device 90h Diagnostic 1 Flush Cache E7h 1 Flush Cache Extended EAh 1 Format Track 3 50h 1 Initialize Device 91h Parameters 3 1 Identify Device ECh 1 Idle E3...

Страница 52: ...B0h y y y y y 1 Standby E2h y 1 Standby Immediate E0h 1 Write Buffer E8h 1 Write DMA CAh y y y y y 1 Write DMA Extended 35h y y y y y y y y y 2 Write FPDMA Queued 61h y y y y y y y y y y 1 Write Log E...

Страница 53: ...es Table 8 2 Device Configuration Overlay Feature Register Values Value Command C0h Device Configuration Restore C1h Device Configuration Freeze Lock C2h Device Configuration Identify C3h Device Confi...

Страница 54: ...support for Ultra DMA mode 4 and below is allowed 3 1 Reporting support for Ultra DMA mode 3 and below is allowed 2 1 Reporting support for Ultra DMA mode 2 and below is allowed 1 1 Reporting support...

Страница 55: ...When the command is issued prepares to transfer the 256 words of device identification data to the host sets the DRQ bit clears the BSY bit and generates an interrupt The host can then transfer the d...

Страница 56: ...logical cylinders 2 0 Reserved 3 00XXh Number of logical heads 4 5 0 Retired 6 003Fh Number of logical sectors per logical track 7 8 0 Reserved for CFA 9 0 Retired 10 19 Serial number 20 ASCII charact...

Страница 57: ...in nanoseconds 120ns 16 6MB S 66 0078h Manufacturer s recommended Multiword DMA transfer cycle time 15 0 Cycle time in nanoseconds 120ns 16 6MB S 67 0078h Minimum PIO transfer cycle time without flow...

Страница 58: ...be set to one 13 1 FLUSH CACHE Ext supported 12 1 Mandatory FLUSH CACHE command supported 11 1 Device Configuration Overlay features supported 10 1 48 bit address feature supported 9 Reserved 8 1 SET...

Страница 59: ...ress feature supported 9 Reserved 8 1 SET MAX security feature enabled by SET MAX SET PASSWORD 7 1 Set Address Offset Reserved Area Boot INCITS TR27 2001 6 1 SET FEATURES subcommand required to spin u...

Страница 60: ...Request Size 96 0000h Streaming Transfer Time DMA 97 0000h Streaming Access Latency DMA and PIO 98 99 0000h Streaming Performance Granularity 100 103 xxxxh Maximum User LBA for 48 bit address 100 LSB...

Страница 61: ...Count register is non zero then the automatic Idle Mode sequence is enabled and the timer begins counting down immediately If the Sector Count register is zero the automatic power down sequence is di...

Страница 62: ...ears BSY and generates an interrupt The host then reads up to 512 bytes of data from the buffer The Read Buffer and Write Buffer commands are synchronized so that sequential Write Buffer E8h and Read...

Страница 63: ...9h extended The Read Multiple command performs similarly to the Read Sectors command except interrupts are not generated on every sector but on the transfer of a block which contains the number of sec...

Страница 64: ...Once at the desired track the drive searches for the appropriate ID field If the ID is read correctly the data address mark shall be recognized within a specified number of bytes or the Address Mark N...

Страница 65: ...nt of the security password If the password selected by word 0 matches the password previously saved by the device the device shall unlock mode This command shall not change the Master password The Ma...

Страница 66: ...rozen mode the command executes and the device shall remain in frozen mode Commands disabled by SECURITY FREEZE LOCK are as follows SECURITY SET PASSWORD SECURITY UNLOCK SECURITY DISABLE PASSWORD SECU...

Страница 67: ...s of data from the host If the Identifier bit is set to Master and the device is in high security level then the password supplied shall be compared with the stored Master password If the device is in...

Страница 68: ...ransition SC 06 Software Settings Preservation AAh Enable read look ahead feature BBh Obsolete Set 4 byte ECC length D2h DFh VU Features F0h FFh VU Features When the drive receives this command it che...

Страница 69: ...Multiple commands and execution of those commands is enabled If a block count is not supported an Aborted Command error is posted and Read Multiple and Write Multiple commands are disabled At power o...

Страница 70: ...of SMART either enabled or disabled shall be preserved by the device across power cycles After receipt of this command by the device all other SMART commands including SMART DISABLE OPERATIONS comman...

Страница 71: ...f the new command After servicing the interrupting command from host the device may immediately re initiate or resume its off line data collection activities without any additional commands from host...

Страница 72: ...cific 367 F Off line data collection capability 368 369 F SMART capability 370 F Error logging capability 7 1 Reserved 0 1 Device error logging supported 371 X Vendor specific 372 F Short self test ro...

Страница 73: ...ngth Total number of the attributes is 30 Each attribute defines Attribute ID Status Flag Attribute Value and Vendor Specific bytes The Attribute ID is range from 01h to FFh The Vendor Specific bytes...

Страница 74: ...eration of the device or during both normal operation and off line testing 2 Performance 1 Attributes that characterizes a performance aspects of the drive degradation of which may indicate imminent d...

Страница 75: ...Pending sector count Off line scan pending sectors 198 Uncorrectable sector count Off line scan uncorrectable sectors 199 UDMA CRC error rate CRC Errors during UDMA transfer 200 Write error rate Erro...

Страница 76: ...completed having the electrical element of the test failed 6 The previous self test completed having the servo and or seek test element of the test failed 7 The previous self test completed having the...

Страница 77: ...ediately upon return to Active or Idle mode from a Standby mode Bit 1 SMART data auto save after event capability bit The value of this bit shall be equal to one for devices complying with this standa...

Страница 78: ...available Any error encountered during Write DMA execution results in the termination of data transfer The drive issues an interrupt to indicate that data transfer has terminated and the status is ava...

Страница 79: ...he Sector Count register contains the number of sectors not the number of blocks or the block count requested If the number of requested sectors is not evenly divisible by the block count as many full...

Страница 80: ...the Command Block registers contain the cylinder head and sector number of the last sector written in CHS mode or the logical block address in LBA mode If an error occurs during a write of more than...

Страница 81: ...e when handling the Spinpoint M8 hard disk drive 5 Do not touch cover and the components on the PCB Please see the Fig 9 2 6 Do not stack the HDDs in column Please see the Fig 9 3 7 Avoid harsh shocks...

Страница 82: ...Spinpoint M8 Product Manual REV 2 6 76 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...

Страница 83: ...pecific 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 th...

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