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PRODUCT DESCRIPTION

2 – 4

Major HDA Components

Major HDA Components

Major HDA Components

Major HDA Components

Major HDA Components

Drive Mechanism

Drive Mechanism

Drive Mechanism

Drive Mechanism

Drive Mechanism

A brush-less DC direct drive motor rotates the spindle at 7,200 RPM (±0.1%). The dynamically balanced
motor/spindle assembly ensures minimal mechanical run-out to the disks. A dynamic brake provides a fast
stop to the spindle motor upon power removal. The speed tolerance includes motor performance and motor
circuit tolerances.

Rotary Actuator

Rotary Actuator

Rotary Actuator

Rotary Actuator

Rotary Actuator

All DiamondMax Plus 40 drives employ a rotary voice coil actuator which consists of a moving coil, an
actuator arm assembly and stationary magnets. The actuator moves on a low-mass, low-friction center shaft.
The low friction contributes to fast access times and low power consumption.

Read/Write Electronics

Read/Write Electronics

Read/Write Electronics

Read/Write Electronics

Read/Write Electronics

An integrated circuit mounted within the sealed head disk assembly (near the read/write heads) provides up
to eight head selection (depending on the model), read pre-amplification and write drive circuitry.

Read/Write Heads and Media

Read/Write Heads and Media

Read/Write Heads and Media

Read/Write Heads and Media

Read/Write Heads and Media

Low mass, low force giant magneto-resistive read/write heads record data on 3.5-inch diameter disks. Maxtor
uses a sputtered thin film medium on all disks for DiamondMax Plus 40 drives.

Air Filtration System

Air Filtration System

Air Filtration System

Air Filtration System

Air Filtration System

All DiamondMax Plus 40 drives are assembled in a Class 100 controlled environment. Over the life of the
drive, a 0.1 micron filter and breather filter located within the sealed head disk assembly (HDA) maintain a
clean environment to the heads and disks. DiamondMax 40 drives are designed to operate in a typical office
environment with minimum environmental control.

Microprocessor

Microprocessor

Microprocessor

Microprocessor

Microprocessor

The microprocessor controls the following functions for the drive electronics:

Command execution

Cache management

Data correction and error recovery

Diagnostic execution

Data sequencing

Head positioning (including error recovery)

Host interface

Index detection

Spin speed control

Seeks

Servo

S.M.A.R.T.

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Содержание 51024U2

Страница 1: ...demarks of Maxtor Corporation Other brands or products are trademarks or registered trademarks of their respective holders Contents and specifications subject to change without notice All rights reserved Corporate Headquarters 510 Cottonwood Drive Milpitas California 95035 Tel 408 432 1700 Fax 408 432 4510 Research and Development Center 2190 Miller Drive Longmont Colorado 80501 Tel 303 651 6000 F...

Страница 2: ... take all proper electro static discharge ESD precautions includingpersonnelandequipmentgrounding Stand alonedrivesare sensitive to ESD damage 2 2 2 2 2 BEFORE removing drives from their packing material allow them to reach room temperature 3 3 3 3 3 During handling NEVER drop jar or bump a drive 4 4 4 4 4 Once a drive is removed from the Maxtor shipping container IMMEDIATELY secure the drive thro...

Страница 3: ...ce 2 2 Zone Density Recording 2 2 Read Write Multiple Mode 2 2 UltraDMA Mode 4 2 2 Multi word DMA EISA Type B Mode 2 2 2 Sector Address Translation 2 2 Logical Block Addressing 2 3 Defect Management Zone 2 3 On the Fly Hardware Error Correction Code ECC 2 3 Software ECC Correction 2 3 Automatic Head Park and Lock Operation 2 3 Cache Management 2 4 Buffer Segmentation 2 4 Read Ahead Mode 2 4 Automa...

Страница 4: ...t Design Life 3 4 EMC EMI 3 5 EMC Compliance 3 5 Canadian Emissions Statement 3 5 Safety Regulatory Compliance 3 5 Section 4 Section 4 Section 4 Section 4 Section 4 Handling and Installation Handling and Installation Handling and Installation Handling and Installation Handling and Installation Hard Drive Handling Precautions 4 1 Electro Static Discharge ESD 4 1 Unpacking and Inspection 4 2 Repacki...

Страница 5: ...or Count Register 6 2 Sector Number Register 6 2 Cylinder Number Registers 6 2 Device Head Register 6 2 Status Register 6 2 Command Register 6 3 Read Commands 6 3 Write Commands 6 3 Mode Set Check Commands 6 3 Power Mode Commands 6 3 Initialization Commands 6 3 Seek Format and Diagnostic Commands 6 3 S M A R T Commands 6 3 Summary 6 4 Control Diagnostic Registers 6 5 Alternate Status Register 6 5 ...

Страница 6: ... Check Power Mode 7 7 Set Sleep Mode 7 7 Default Power on Condition 7 7 Initialization Commands 7 9 Identify Drive 7 9 Initialize Drive Parameters 7 12 Seek Format and Diagnostic Commands 7 13 S M A R T Command Set 7 14 Section 8 Section 8 Section 8 Section 8 Section 8 Service and Support Service and Support Service and Support Service and Support Service and Support Service Policy 8 1 No Quibble ...

Страница 7: ...l 4 7 4 7 Master Slave and Cable Select Settings 4 10 5 1 Data Connector 5 1 5 2 PIO Data Transfer to from Device 5 3 5 3 Multi word DMA Data Transfer 5 4 5 4 Initiating an Ultra DMA Data In Burst 5 5 5 5 Sustained Ultra DMA Data In Burst 5 6 5 6 Host Pausing an Ultra DMA Data In Burst 5 6 5 7 Device Terminating an Ultra DMA Data In Burst 5 7 5 8 Host Terminating an Ultra DMA Data In Burst 5 7 5 9...

Страница 8: ...e ll provide you the information you need quickly accurately and in the form you prefer a fax a downloaded file or a conversation with a representative ManualOrganization ManualOrganization ManualOrganization ManualOrganization ManualOrganization This hard disk drive reference manual is organized in the following method Section 1 Introduction Section 2 Description Section 3 Specifications Section ...

Страница 9: ...al Conventions Signal Conventions Signal Conventions Signal Conventions Signal Conventions Signal names are shown in all uppercase type All signals are either high active or low active signals A dash character at the end of a signal name indicates that the signal is low active A low active signal is true when it is below ViL and is false when it is above ViH A signal without a dash at the end indi...

Страница 10: ... 9 0 ms access times make these performance series disk drives especially well suited to high end desktop and server applications DiamondMaxPlus40KeyFeatures DiamondMaxPlus40KeyFeatures DiamondMaxPlus40KeyFeatures DiamondMaxPlus40KeyFeatures DiamondMaxPlus40KeyFeatures ANSI ATA 5 compliant PIO Mode 4 interface Enhanced IDE Supports Ultra DMA Mode 4 for up to 66 7 MB sec data transfers 2 MB buffer ...

Страница 11: ...pe B mode transfers Sector Address Translation Sector Address Translation Sector Address Translation Sector Address Translation Sector Address Translation All DiamondMax Plus 40 drives feature a universal translate mode In an AT EISA class system the drive may be configured to any specified combination of cylinders heads and sectors within the range of the drive s formatted capacity DiamondMax Plu...

Страница 12: ...s again applied CacheManagement CacheManagement CacheManagement CacheManagement CacheManagement Buffer Segmentation Buffer Segmentation Buffer Segmentation Buffer Segmentation Buffer Segmentation The data buffer is organized into two segments the data buffer and the micro controller scratch pad The data buffer is dynamically allocated for read and write data depending on the commands received A va...

Страница 13: ... heads provides up to eight head selection depending on the model read pre amplification and write drive circuitry Read Write Heads and Media Read Write Heads and Media Read Write Heads and Media Read Write Heads and Media Read Write Heads and Media Low mass low force giant magneto resistive read write heads record data on 3 5 inch diameter disks Maxtor uses a sputtered thin film medium on all dis...

Страница 14: ...ves may be accessed via a common interface cable using the same range of I O addresses The drives are jumpered as device 0 or 1 Master Slave and are selected by the drive select bit in the Device Head register of the task file All Task File registers are written in parallel to both drives The interface processor on each drive decides whether a command written to it should be executed this depends ...

Страница 15: ... 1 5 k c a r T r e p s r o t c e S 0 6 5 5 2 3 e v i r D r e p s r o t c e S 8 4 2 1 4 0 0 8 2 3 4 0 3 0 0 6 4 2 6 0 2 0 0 4 6 1 2 5 1 0 0 3 6 1 8 0 1 0 0 2 L E D O M 8 U 8 9 0 4 5 6 U 3 7 0 3 5 4 U 9 4 0 2 5 3 U 6 3 5 1 5 2 U 4 2 0 1 5 s e m i T k e e S d a e r l a c i p y t k c a r T o t k c a r T s m 0 1 e g a r e v A s m 0 9 e k o r t S l l u F s m 0 0 2 y c n e t a L e g a r e v A s m 7 1 4 d...

Страница 16: ...5 01 44 95 0 25 mm 5 787 max 147 mm max 6 x 6 32 UNC 28 THREAD 4 x 6 32 UNC 28 THREAD 4 00 01 101 6 0 25 mm 3 75 01 95 25 0 25 mm 125 010 3 18 025 mm Figure3 1 OutlineandMountingDimensions R E T E M A R A P D R A D N A T S C I R T E M t h g i e H s e h c n i 8 2 0 1 s r e t e m i l l i m 1 6 2 h t g n e L s e h c n i 7 8 7 5 s r e t e m i l l i m 7 4 1 h t d i W s e h c n i 0 0 4 s r e t e m i l l...

Страница 17: ...e EPAEnergyStarCompliance EPAEnergyStarCompliance EPAEnergyStarCompliance Maxtor Corporation supports the goals of the U S Environmental Protection Agency s Energy Star program to reduce the electrical power consumption of computer equipment EnvironmentalLimits EnvironmentalLimits EnvironmentalLimits EnvironmentalLimits EnvironmentalLimits R E T E M A R A P G N I T A R E P O E G A R O T S G N I T ...

Страница 18: ... errors non recoverable Average data error rate allowed with all error recovery features activated Component Design Life Component Design Life Component Design Life Component Design Life Component Design Life 5 years minimum Component design life is defined as a the time period before identified wear out mechanisms impact the failure rate or b the time period up to the wear out point when useful c...

Страница 19: ...installed in a typical personal computer Maxtor recommends that testing and analysis for EMC compliance be performed with the disk mechanism installed within the user s end use application Canadian Emissions Statement Canadian Emissions Statement Canadian Emissions Statement Canadian Emissions Statement Canadian Emissions Statement This digital apparatus does not exceed the Class B limits for radi...

Страница 20: ...e baseplate Electro StaticDischarge ESD Electro StaticDischarge ESD Electro StaticDischarge ESD Electro StaticDischarge ESD Electro StaticDischarge ESD To avoid some of the problems associated with ESD Maxtor advises that anyone handling a disk drive use a wrist strap with an attached wire connected to an earth ground Failure to observe these precautions voids the product warranty Manufacturers fr...

Страница 21: ...e Inspect the shipping container for evidence of damage in transit Notify the carrier immediately in case of damage to the shipping container As they are removed inspect drives for evidence of shipping damage or loose hardware If a drive is damaged and no container damage is evident notify Maxtor immediately for drive disposition Figure4 1 Multi packShippingContainer ...

Страница 22: ...ended Mounting Configuration Recommended Mounting Configuration Recommended Mounting Configuration Recommended Mounting Configuration Recommended Mounting Configuration The DiamondMax drive design allows greater shock tolerance than that afforded by larger heavier drives The drive may be mounted in any attitude using four size 6 32 screws with 1 8 inch maximum penetration and a maximum torque of 5...

Страница 23: ...er than 8 4 GB Pentium class processor Operating System Requirements Operating System Requirements Operating System Requirements Operating System Requirements Operating System Requirements Drives less than or equal to 8 4 GB DOS 5 0 or higher Drives larger than 8 4 GB Installing as boot drive Primary Master requires full installation set of Windows 95 98 not an update from DOS or Windows 3 x Insta...

Страница 24: ...r connector to J2 on the Maxtor drive This connector is keyed and will only fit one way Check all other cable connections before you power up Striped colored edge is pin 1 AfterattachingtheIDEinterfacecableandthe powercabletotheMaxtorharddrive verifythat allothercablesconnectedtootherdevices the motherboardorinterfacecard s arecorrectly seated Striped colorededgeispin Start up Start up Start up St...

Страница 25: ...Figure5 1 DataConnector PinDescriptionSummary PinDescriptionSummary PinDescriptionSummary PinDescriptionSummary PinDescriptionSummary N I P L A N G I S N I P L A N G I S 1 0 t e s e R 2 0 d n u o r G 3 0 7 D D 4 0 8 D D 5 0 6 D D 6 0 9 D D 7 0 5 D D 8 0 0 1 D D 9 0 4 D D 0 1 1 1 D D 1 1 3 D D 2 1 2 1 D D 3 1 2 D D 4 1 3 1 D D 5 1 1 D D 6 1 4 1 D D 7 1 0 D D 8 1 5 1 D D 9 1 d n u o r G 0 2 n i p y ...

Страница 26: ... e r A M D s t s r u b n i a t a d A M D a r t l U g n i r u d e b o r t s a t a D L E S C 8 2 t c e l e S e l b a C m e t s y s t s o h n o g n i l b a c l a i c e p s s e r i u q e R e l b a c a i v n o i t c e l e s e v a l S r e t s a M r o f d e s U r e p m u j t c e l e S e l b a C f o n o i t a l l a t s n i d n a K C A M D 9 2 I e g d e l w o n k c A A M D e h t l a n g i s s i h t g n i t...

Страница 27: ... m d l o h a t a d W O I D s n 0 3 s n 0 2 s n 5 1 s n 0 1 s n 0 1 5 t n i m p u t e s a t a d R O I D s n 0 5 s n 5 3 s n 0 2 s n 0 2 s n 0 2 6 t n i m d l o h a t a d W O I D s n 5 s n 5 s n 5 s n 5 s n 5 Z 6 t x a m e t a t s i r t a t a d R O I D s n 0 3 s n 0 3 s n 0 3 s n 0 3 s n 0 3 9 t n i m d l o h d i l a v s s e r d d a o t W O I D R O I D s n 0 2 s n 5 1 s n 0 1 s n 0 1 s n 0 1 d R t n...

Страница 28: ...a d W O I D R O I D s n 0 0 1 s n 0 3 s n 0 2 H t n i m d l o h a t a d W O I D s n 0 2 s n 5 1 s n 0 1 I t n i m p u t e s W O I D R O I D o t K C A M D 0 0 0 J t n i m d l o h K C A M D o t W O I D R O I D s n 0 2 s n 5 s n 5 r K t n i m h t d i w e s l u p d e t a g e n R O I D s n 0 5 s n 0 5 s n 5 2 w K t n i m h t d i w e s l u p d e t a g e n W O I D s n 5 1 2 s n 0 5 s n 5 2 r L t x a m y ...

Страница 29: ... s a e l e r o t s t u p t u o r o f d e w o l l a e m i t m u m i x a M 0 1 0 1 0 1 0 1 0 1 t H A Z n o g n i n r u t s r e v i r d t u p t u o r o f d e r i u q e r e m i t y a l e d m u m i n i M e t a t s d e s a e l e r m o r f 0 2 0 2 0 2 0 2 0 2 t D A Z 0 0 0 0 0 t V N E e m i t e p o l e v n E e h t n i h t i w e r a s n o i t i s n a r t l a n g i s l o r t n o c l l a e m i t h c u m s i...

Страница 30: ... tDVH DSTROBE at device DD 15 0 at device DSTROBE at host DD 15 0 at host tDVH tCYC tCYC tDVS tDVS tDH tDS tDH tDS t2CYC tDH tDVH t2CYC DMARQ device DMACK host STOP host HDMARDY host DSTROBE device DD 15 0 device tSR tRFS tRP Figure5 6 HostPausinganUltraDMADataInBurst ...

Страница 31: ...1 DA2 CS0 CS1 tACK tLI tMLI tDVS tLI tACK tACK tZAH tDVH tSS tLI Figure5 7 DeviceTerminatinganUltraDMADataInBurst tDVH CRC tAZ DMARQ device DMACK host STOP host HDMARDY host DSTROBE device DD 15 0 DA0 DA1 DA2 CS0 CS1 tACK tMLI tLI tLI tIORDYZ tACK tACK tZAH tMLI tDVS tRFS tRP Figure5 8 HostTerminatinganUltraDMADataInBurst ...

Страница 32: ...15 0 at device tDVH tCYC tCYC tDVS tDVS tDS tDH t2CYC tDH tDVH t2CYC DMARQ device DMACK host STOP host DDMARDY device HSTROBE host DD 15 0 host DA0 DA1 DA2 CS0 CS1 tUI tACK tENV tZIORDY tLI tDVS tDVH tACK tACK tUI Figure5 9 InitiatinganUltraDMADataOutBurst Figure5 10 SustainedUltraDMADataOutBurst ...

Страница 33: ...OBE host DD 15 0 host tSR tRFS tRP Figure5 11 DevicePausinganUltraDMADataOutBurst DMARQ device DMACK host STOP host DDMARDY device HSTROBE host DD 15 0 host DA0 DA1 DA2 CS0 CS1 tACK tLI tMLI tDVS tLI tLI tACK tIORDYZ tACK CRC tDVH tSS Figure5 12 HostTerminatinganUltraDMADataOutBurst ...

Страница 34: ...PTION 5 10 DMARQ device DMACK host STOP host DDMARDY device HSTROBE host DD 15 0 host DA0 DA1 DA2 CS0 CS1 tACK tMLI tDVS tLI tLI tACK CRC tDVH tACK tIORDYZ tMLI tRP tRFS Figure5 13 DeviceTerminatinganUltraDMADataOutBurst ...

Страница 35: ...gister Error Register Error Register Error Register Error Register A read only register containing specific information regarding the previous command Data interpretation differs depending on whether the controller is in operational or diagnostic mode A power up reset software reset or receipt of a diagnostic command sets the controller into diagnostic mode This mode invalidates contents of the St...

Страница 36: ...mmands not supported by LBA mode will abort the selected command When set the Task File register contents are defined as follows for the Read Write and translate command S T N E T N O C S T I B A B L r e b m u N r o t c e S 7 0 w o L r e d n i l y C 5 1 8 h g i H r e d n i l y C 3 2 6 1 d a e H e v i r D 7 2 4 2 Drive Select Set to 0 to select the master drive set to 1 to select the slave drive He...

Страница 37: ...es enabled 33h Write Long retries disabled Write Verify Sector s 3Ch Write Sector Buffer E8h Write Multiple C5h Write DMA CAh CBh No retries ModeSet CheckCommands ModeSet CheckCommands ModeSet CheckCommands ModeSet CheckCommands ModeSet CheckCommands Set Features EFh Set Multiple Mode C6h Power Mode Commands Power Mode Commands Power Mode Commands Power Mode Commands Power Mode Commands Standby Im...

Страница 38: ...x E 1 0 0 1 0 0 0 0 N N N N D s r e t e m a r a P e z i l a i t i n I 1 0 0 1 0 0 0 1 N Y N N Y r e f f u B r o t c e S d a e R 1 1 1 0 0 1 0 0 N N N N D r e f f u B r o t c e S e t i r W 1 1 1 0 1 0 0 0 N N N N D e v i r D y f i t n e d I 1 1 1 0 1 1 0 0 N N N N D s e r u t a e F t e S 1 1 1 0 1 1 1 1 Y N N N D e l p i t l u M d a e R 1 1 0 0 0 1 0 0 N Y Y Y Y e l p i t l u M e t i r W 1 1 0 0 0 ...

Страница 39: ...olds the drive in the reset state Clearing the bit re enables the drive The software Reset bit must be held active for a minimum of 5 µsec IRQ Enable Setting the Interrupt Request Enable to 0 enables the IRQ 14 signal to the host When this bit is set to 1 IRQ14 is tri stated and interrupts to the host are disabled Any pending interrupt occurs when the bit is set to 0 The default state of this bit ...

Страница 40: ...r The Busy bit does not clear until the reset clears and the drive completes initialization Completion of a reset operation does not generate a host interrupt Task File registers are initialized as follows Error 1 Sector Count 1 Sector Number 1 Cylinder Low 0 Cylinder High 0 Drive Head 0 Interrupt Handling Interrupt Handling Interrupt Handling Interrupt Handling Interrupt Handling The drive reques...

Страница 41: ...ds WriteCommands WriteCommands WriteCommands WriteCommands Write Sector s Write Verify Sector s Write Sector Buffer Write DMA Multi word DMA Ultra DMA Write Multiple Set Feature Commands Set Feature Commands Set Feature Commands Set Feature Commands Set Feature Commands Set Features Mode Power Mode Commands Power Mode Commands Power Mode Commands Power Mode Commands Power Mode Commands Standby Imm...

Страница 42: ...registers contain the numbers of the cylinder head and sector of the last sector read Back to back sector read commands set DRQ and generate an interrupt when the sector buffer is filled at the completion of each sector The drive is then ready for the data to be read by the host DRQ is reset and BSY is set immediately when the host empties the sector buffer If an error occurs during Read Sector co...

Страница 43: ...ecution is also similar to that of the READ SECTOR S command except that 1 Several sectors are transferred to the host as a block without intervening interrupts 2 DRQ qualification of the transfer is required only at the start of each block not of each sector The block count consists of the number of sectors to be transferred as a block The block count is programmed by the Set Multiple Mode comman...

Страница 44: ...ctor number of the last sector written The next time the buffer is ready to be filled during back to back Write Sector commands DRQ is set and an interrupt is generated After the host fills the buffer DRQ is reset and BSY is set If an error occurs Write Sector operations terminate at the sector containing the error The Command Block registers then contain the numbers of the cylinder head and secto...

Страница 45: ...e Multiple commands report after the attempted disk write of the block or partial block in which the error occurred The write operation ends with the sector in error even if it was in the middle of a block When an error occurs subsequent blocks are not transferred When DRQ is set at the beginning of each full and partial block interrupts are generated Write DMA Write DMA Write DMA Write DMA Write ...

Страница 46: ... 2 0 e h c a c e t i r w d e l b a n E h 3 0 r e t s i g e r t n u o C r o t c e S n i e u l a v n o d e s a b e d o m r e f s n a r t t e S h 4 4 e h t n i d e i f i c e p s s d n a m m o c g n o L e t i r W g n o L d a e R n o d e d n e p p a a t a d f o h t g n e L n o i t a m r o f n i e c i v e D y f i t n e d I h 5 5 e r u t a e f d a e h a k o o l d a e r e l b a s i D h 6 6 s t l u a f e d...

Страница 47: ... drive is already spinning the spin up sequence is not executed A non zero value placed in the Sector Count register will enable the Automatic Power Down sequence and their timer will begin counting down immediately A value of zero placed in the Sector Count register will disable the Automatic Power Down sequence The actuator is parked and some circuits are powered off Check Power Mode 98h E5h Che...

Страница 48: ...2 3 5 2 0 1 d o i r e p e u q i n u r o d n e V s r u o h 4 5 2 d e v r e s e R 5 5 2 s d n o c e s 5 1 s e t u n i m 1 2 While the drive is in STANDBY MODE any commands received from the host are accepted and executed as they would in normal operation except that the spin motor is started if required to execute a disk command Under these conditions the drive will set BSY when command processing w...

Страница 49: ... l a c i g o l f o r e b m u N 5 4 d e r i t e R 6 k c a r t l a c i g o l r e p s r o t c e s l a c i g o l f o r e b m u N 8 7 d e v r e s e R 9 d e r i t e R 9 1 0 1 s r e t c a r a h c I I C S A 0 2 r e b m u n l a i r e s e v i r D 0 2 d e s u t o N 1 2 d e i f i c e p s t o n h 0 0 0 0 s t n e m e r c n i e t y b 2 1 5 n i e z i s r e f f u B 2 2 s d n a m m o c g n o L e t i r W d a e R n o...

Страница 50: ... t l u m m u m i n i M 6 6 s d n o c e s o n a n n i e m i t e l c y c 0 5 1 e m i t e l c y c r e f s n a r t A M D d r o w i t l u m d e d e m m o c e r s r e r u t c a f u n a M 7 6 s d n o c e s o n a n n i e m i t e l c y c 0 5 1 l o r t n o c w o l f t u o h t i w e m i t e l c y c r e f s n a r t O I P m u m i n i M 8 6 s d n o c e s o n a n n i e m i t e l c y c 0 5 1 l o r t n o c w o l f...

Страница 51: ... 8 d n a 6 8 5 8 s d r o w f I d e l b a n e s t e s d n a m m o C d e t r o p p u s o r e z o t d e r a e l c e b l l a h s 5 1 e n o o t t e s e b l l a h s 4 1 d e v r e s e r 1 3 1 d n a m m o c e d o c o r c i M d a o l n w o D s t r o p p u s 1 0 7 8 t o n n o i t a c i f i t o n t e s d n a m m o c h F F F F r o h 0 0 0 0 7 8 d n a 6 8 5 8 s d r o w f I d e l b a n e s t e s d n a m m o C d...

Страница 52: ... the number of logical cylinders Upon receipt of the command the drive 1 Sets BSY 2 Saves the parameters 3 Resets BSY and 4 Generates an interrupt To specify maximum heads write 1 less than the maximum e g write 4 for a 5 head drive To specify maximum sectors specify the actual number of sectors e g 17 for a maximum of 17 sectors track The sector count and head values are not checked for validity ...

Страница 53: ...nd begins command execution If the drive is not already on the desired track an implied seek is performed Once at the desired track the data fields are written with all zeroes Execute Drive Diagnostic Execute Drive Diagnostic Execute Drive Diagnostic Execute Drive Diagnostic Execute Drive Diagnostic Commands the drive to implement the internal diagnostic tests These tests are executed only upon co...

Страница 54: ... register before writing the command code to the command register The sub commands and their respective codes are D0h S M A R T Read Attribute Value This feature returns 512 bytes of attribute information to the host D1h S M A R T Read Attribute Thresholds This feature returns 512 bytes of warranty failure thresholds to the host D2h Enable Disable Autosave To enable this feature set the sector cou...

Страница 55: ...or repairs and returns Here s how it works 1 Customer calls 1 800 2MAXTOR for a Return Material Authorization RMA number and provides a credit card number 2 Maxtor ships a replacement drive within 2 business days and 3 Customer returns the original drive and credit card draft is destroyed Support Support Support Support Support Technical Assistance Technical Assistance Technical Assistance Technic...

Страница 56: ...omerService CustomerService CustomerService CustomerService CustomerService All Maxtor products are backed by No Quibble Service the benchmark for service and support in the industry Customer Service is available 5 a m to 5 p m Pacific Standard Time Monday through Friday U S and Canada Language support English Spanish Voice 800 2MAXTOR press 2 800 262 9867 E mail RMA maxtor com Fax 408 922 2085 Eu...

Страница 57: ...gh the system bus and to the attached cards and peripheral devices BPI BPI BPI BPI BPI Acronym for bits per inch See bit density BLOCK BLOCK BLOCK BLOCK BLOCK A group of bytes handled stored and accessed as a logical data unit such as an individual file record BUFFER BUFFER BUFFER BUFFER BUFFER A temporary data storage area that compensates for a difference in data transfer rates and or data proce...

Страница 58: ...a 1 or 0 usually in bits and bytes rather than analog signals signals that can have many values DIGITALMAGNETICRECORDING DIGITALMAGNETICRECORDING DIGITALMAGNETICRECORDING DIGITALMAGNETICRECORDING DIGITALMAGNETICRECORDING See magnetic recording DIRECTACCESS DIRECTACCESS DIRECTACCESS DIRECTACCESS DIRECTACCESS Access directly to memory location See random access DIRECTMEMORYACCESS DIRECTMEMORYACCESS ...

Страница 59: ...e slider and flexure HEADCRASH HEADCRASH HEADCRASH HEADCRASH HEADCRASH The inadvertent touching of a disk by a head flying over the disk may destroy a portion of the media and or the head HEADDISKASSEMBLY HDA HEADDISKASSEMBLY HDA HEADDISKASSEMBLY HDA HEADDISKASSEMBLY HDA HEADDISKASSEMBLY HDA The mechanical portion of a rigid fixed disk drive It usually includes disks heads spindle motor and actuat...

Страница 60: ...CYMODULATION MMFM MODIFIEDMODIFIEDFREQUENCYMODULATION MMFM A recording code similar to MFM that has a longer run length limited distance MODULATION MODULATION MODULATION MODULATION MODULATION 1 Readback voltage fluctuation usually related to the rotational period of a disk 2 A recording code such as FM MFM or RLL to translate between flux reversals and bits or bytes N N N N N NON RETURNTOZERO NON ...

Страница 61: ...N LENGTHLIMITEDENCODING RUN LENGTHLIMITEDENCODING RUN LENGTHLIMITEDENCODING A recording code Sometimes meant to denote 2 7 RLL which can signify 1 5 times the bits as MFM given the same number of flux reversals in a given lineal distance S S S S S SECTOR SECTOR SECTOR SECTOR SECTOR A logical segment of information on a particular track The smallest addressable unit of storage on a disk Tracks are ...

Страница 62: ...ONING TRACKPOSITIONING TRACKPOSITIONING TRACKPOSITIONING TRACKPOSITIONING The method both mechanical and electrical used to position the heads over the correct cylinder in a disk drive system U U U U U UN CORRECTABLEERROR UN CORRECTABLEERROR UN CORRECTABLEERROR UN CORRECTABLEERROR UN CORRECTABLEERROR An error that is not able to be overcome with Error Detection and Correction UNFORMATTEDCAPACITY U...

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