Thank you for your interest in the Maxtor DiamondMax™ 4320 AT hard disk drives. This manual provides
technical information for OEM engineers and systems integrators regarding the installation and use of DiamondMax
hard drives.
the Maxtor Customer Service Center at 800-2MAXTOR or 408-432-1700.
Before unpacking the hard drive, please review Sections 1 through 4.
Drive repair should be performed only at an authorized repair center. For repair information, contact
CAUTION
Maxtor DiamondMax 4320 hard drives are precision products. Failure to
follow these precautions and guidelines outlined here may lead to
product failure, damage and invalidation of all warranties.
1
2
3
4
5
BEFORE unpacking or handling a drive, take all proper electro-static discharge (ESD)
precautions, including personnel and equipment grounding. Stand-alone drives are sensitive to
ESD damage.
BEFORE removing drives from their packing material, allow them to reach room
temperature.
During handling, NEVER drop, jar, or bump a drive.
Once a drive is removed from the Maxtor shipping container, IMMEDIATELY secure the drive
through its mounting holes within a chassis. Otherwise, store the drive on a padded, grounded,
antistatic surface.
NEVER switch DC power onto the drive by plugging an electrically live DC source cable into
the drive's connector. NEVER connect a live bus to the drive's interface connector.
Please do not remove or cover up Maxtor factory-installed drive labels.
They contain information required should the drive ever need repair.
4 - 7Master, Slave and Cable Select Settings4 - 10
5 - 1Data Connector5 - 1
5 - 2PIO Data Transfer to/from Device5 - 3
5 - 3Multi-word DMA Data Transfer5 - 4
5 - 4Initiating an Ultra DMA Data In Burst5 - 5
5 - 5Sustained Ultra DMA Data In Burst5 - 6
5 - 6Host Pausing an Ultra DMA Data In Burst5 - 6
5 - 7Device Terminating an Ultra DMA Data In Burst5 - 7
5 - 8Host Terminating an Ultra DMA Data In Burst5 - 7
5 - 9Initiating an Ultra DMA Data Out Burst5 - 8
5 - 10Sustained Ultra DMA Data Out Burst5 - 8
5 - 11Device Pausing an Ultra DMA Data Out Burst5 - 9
5 - 12Host Terminating an Ultra DMA Data Out Burst5 - 9
5 - 13Device Terminating an Ultra DMA Data Out Burst5 - 10
v
DIAMONDMAX 4320 – INTRODUCTION
SECTION 1
Introduction
Maxtor Corporation
Maxtor Corporation has been providing high-quality computer storage products since 1982. Along the way,
we’ve seen many changes in data storage needs. Not long ago, only a handful of specific users needed more than
a couple hundred megabytes of storage. Today, downloading from the Internet and CD-ROMs, multimedia,
networking and advanced office applications are driving storage needs even higher. Even home PC applications
need capacities measured in gigabytes, not megabytes.
Products
Maxtor’s products meet those demanding storage capacity requirements with room to spare. They feature
proven compatibility and reliability. While DiamondMax™ 4320 is the latest addition to our family of high
performance desktop hard drives, the DiamondMax™ 3400 series hard drives deliver industry-leading
capacity, performance and value for many PC applications.
Support
No matter which capacity, all Maxtor hard drives are supported by our commitment to total customer
satisfaction and our No Quibble
(http://www.maxtor.com) – puts you in touch with either technical support or customer service. We’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.
®
Service guarantee. One call – or a visit to our home page on the Internet
Manual Organization
This hard disk drive reference manual is organized in the following method:
If there is a conflict between text and tables, the table shall be accepted as being correct.
Key Words
The names of abbreviations, commands, fields and acronyms used as signal names are in all uppercase type
(e.g., IDENTIFY DRIVE). Fields containing only one bit are usually referred to as the “name” bit instead of
the “name” field.
Names of drive registers begin with a capital letter (e.g., Cylinder High register).
Numbering
Numbers that are not followed by a lowercase “b” or “h” are decimal values. Numbers that are followed by
a lowercase “b” (e.g., 01b) are binary values. Numbers that are followed by a lowercase “h” (e.g., 3Ah) are
hexadecimal values.
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 indicates that the signal is high active. A high active signal is
true when it is above ViH and is false when it is below ViL.
When a signal is asserted, it means the signal is driven by an active circuit to its true state.
When a signal is negated, it means the signal is driven by an active circuit to its false state.
When a signal is released, it means the signal is not actively driven to any state. Some signals have bias
circuitry that pull the signal to either a true or false state when no signal driver is actively asserting or negating
the signal. These instances are noted under the description of the signal.
1 – 2
PRODUCT DESCRIPTION
SECTION 2
Product Description
Maxtor DiamondMax™ 4320 AT disk drives are 1-inch high, 3.5-inch diameter random access storage devices
which incorporate an on-board ATA-4/Ultra DMA controller. High capacity is achieved by a balanced
combination of high areal recording density and the latest data encoding and servo techniques.
Maxtor's latest advancements in electronic packaging and integration methods have lowered the drive's power
consumption and increased its reliability. Advanced magneto-resistive read/write heads, an state-of-the-art head/
disk assembly using an integrated motor/spindle design allow up to four disks in a 3.5-inch package.
Exceptionally high data transfer rates and 9.0 ms access times make these performance series disk drives especially
well-suited to high speed desktop and server applications.
DiamondMax 4320 Key Features
ANSI ATA-4 compliant PIO Mode 4 interface (Enhanced IDE)
Supports Ultra DMA Mode 2 for up to 33 MB/sec data transfers
256/512 KB buffer with multi-adaptive cache manager
9.0 ms seek time
Zone density and I.D.-less recording
>
High reliability with
Outstanding shock resistance at 200 Gs
High durability with 50K constant start/stop cycles
Extended data integrity with ECC protected data and fault tolerant servo synchronization fields
Supports EPA Energy Star Standards (Green PC Friendly) with ATA powering savings commands
Auto park and lock actuator mechanism
Low power consumption
S.M.A.R.T. Capability
Note: Maxtor defines one megabyte as 106 or one million bytes and one gigabyte as 109 or one billion bytes.
500,000 hour MTBF
2 – 1
PRODUCT DESCRIPTION
Product Features
Functional / Interface
Maxtor DiamondMax™ 4320 hard drives contain all necessary mechanical and electronic parts to interpret control
signals and commands from an AT-compatible host computer. See Section 3 Product Specifications, for complete
drive specifications.
Zone Density Recording
The disk capacity is increased with bit density management – common with Zone Density Recording. Each
disk surface is divided into 16 circumferential zones. All tracks within a given zone contain a constant
number of data sectors. The number of data sectors per track varies in different zones; the outermost zone
contains the largest number of data sectors and the innermost contains the fewest.
Read/Write Multiple Mode
This mode is implemented per ANSI ATA/ATAPI-4 specification. Read/Write Multiple allows the host to
transfer a set number of sectors without an interrupt request between them, reducing transfer process
overhead and improving host performance.
UltraDMA - Mode 2
Maxtor DiamondMax 4320 hard drives fully comply with the new ANSI Ultra DMA protocol, which greatly
improves overall AT interface performance by significantly improving burst and sustained data throughput.
Multi-word DMA (EISA Type B) - Mode 2
Supports multi-word Direct Memory Access (DMA) EISA Type B mode transfers.
Sector Address Translation
All DiamondMax 4320 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 4320 drives power-up in a translate mode:
(*) The fields LZone (Landing Zone) and WPcom (Write Pre-comp) are not used by the Maxtor hard drive
and the values may be either 0 or the values set by the BIOS. All capacities listed in the above table are based
on 106 or one million bytes.
2 – 2
PRODUCT DESCRIPTION
Logical Block Addressing
The Logical Block Address (LBA) mode can only be utilized in systems that support this form of translation.
The cylinder, head and sector geometry of the drive, as presented to the host, differs from the actual physical
geometry. The host AT computer may access a drive of set parameters: number of cylinders, heads and
sectors per track, plus cylinder, head and sector addresses. However, the drive can’t use these host parameters
directly because of zoned recording techniques. The drive translates the host parameters to a set of logical
internal addresses for data access.
The host drive geometry parameters are mapped into an LBA based on this formula:
LBA= (HSCA - 1) + HHDA x HSPT + HNHD x HSPT x HCYA(1)
whereHSCA = Host Sector Address, HHDA = Host Head Address
= (HSCA - 1) + HSPT x (HHDA + HNHD x HCYA)(2)
HCYA = Host Cylinder Address, HNHD = Host Number of Heads
HSPT = Host Sectors per Track
The LBA is checked for violating the drive capacity. If it does not, the LBA is converted to physical drive
cylinder, head and sector values. The physical address is then used to access or store the data on the disk and
for other drive related operations.
Defect Management Zone (DMZ)
Each drive model has a fixed number of spare sectors per drive, all of which are located at the end of the
drive. Upon detection of a bad sector that has been reassigned, the next sequential sector is used.
For example, if sector 3 is flagged, data that would have been stored there is “pushed down” and recorded
in sector 4. Sector 4 then effectively becomes sector 3, as sequential sectors are “pushed down” across the
entire drive. The first spare sector makes up for the loss of sector 3, and so maintains the sequential order of
data. This push down method assures maximum performance.
On-the-Fly Hardware Error Correction Code (ECC)
33 bits, single burst, guaranteed
Software ECC Correction
81 bits, single burst, guaranteed
33 bits, double bursts, guaranteed
Automatic Park and Lock Operation
Immediately following power down, dynamic braking of the spinning disks delays momentarily allowing the
read/write heads to move to an inner mechanical stop. A small fixed magnet holds the rotary actuator in
place as the disk spins down. The rotary actuator is released only when power is again applied.
2 – 3
PRODUCT DESCRIPTION
Cache Management
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 variable number of read and write buffers may exist at the same time.
Read-Ahead Mode
Normally, this mode is active. Following a read request, disk read-ahead begins on the first sector and
continues sequentially until the allocated buffer is full. If a read request is received during the read-ahead
operation, the buffer is examined to determine if the request is in the cache. If a cache hit occurs, readahead mode continues without interruption and the host transfer begins immediately.
Automatic Write Reallocation (AWR)
This feature is part of the write cache and reduces the risk of data loss during deferred write operations. If a
disk error occurs during the disk write process, the disk task stops and the suspect sector is reallocated to a
pool of alternate sectors located at the end of the drive. Following reallocation, the disk write task continues
until it is complete.
Write Cache Stacking
Normally, this mode is active. Write cache mode accepts the host write data into the buffer until the buffer
is full or the host transfer is complete. A command complete interrupt is generated at the end of the transfer.
A disk write task begins to store the host data to disk. Host write commands continue to be accepted and
data transferred to the buffer until either the write command stack is full or the data buffer is full. The drive
may reorder write commands to optimize drive throughput.
2 – 4
PRODUCT DESCRIPTION
Major HDA Components
Drive Mechanism
A brush-less DC direct drive motor rotates the spindle at 5,400 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
All DiamondMax™ 4320 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
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
Low mass, low force 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 4320 drives.
Air Filtration System
All DiamondMax 4320 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 4320 drives are designed to operate in a typical office
environment with minimum environmental control.
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.
2 – 5
PRODUCT DESCRIPTION
Subsystem Configuration
Dual Drive Support
Two drives 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 on the type of command and which
drive is selected. Only the drive selected executes the command and activates the data bus in response to
host I/O reads; the drive not selected remains inactive.
A master/slave relationship exists between the two drives: device 0 is the master and device 1 the slave.
When J50 is closed (factory default, figure 2-1), the drive assumes the role of master; when open, the drive
acts as a slave. In single drive configurations, J50 must be closed.
Cable Select Option
CSEL (cable select) is an optional feature per ANSI ATA specification. Drives configured in a multiple drive
system are identified by CSEL’s value:
– If CSEL is grounded, then the drive address is 0.
– If CSEL is open, then the drive address is 1.
On some older BIOS', primarily those that auto-configure the disk drive, a hang may occur when the drive
cylinder value exceeds 4096. The 4092 Cylinder Limitation jumper reduces the capacity in the Identify Drive to
4092 allowing large capacity drives to work with older BIOS'. A software driver is required to access the full
capacity of the drive.
The drive is spinning up following initial application of power and has not yet reached full speed.
Seek
A random access operation by the disk drive.
Read/Write
Data is being read from or written to the drive.
PRODUCT SPECIFICATIONS
Idle
The drive is spinning, the actuator is parked and powered off and all other circuitry is powered on.
The drive is capable of responding to read commands within 40 ms.
Standby
The spin motor is not spinning. The drive will leave this mode upon receipt of a command that requires
disk access. The time-out value for this mode is programmable. The buffer is active to accept write data.
Sleep
This is the lowest power state – with the interface set to inactive. A software or hardware reset is required
to return the drive to the Standby state.
EPA Energy Star Compliance
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.
< 1.7%The annualized average failure rate (AFR) applies to the period prior
MTBF
> 500,000 hoursMaxtor does not differentiate between various usage profiles (e.g.,
2
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to the expiration of component design life, and is based on failures
chargeable to Maxtor.
power-on hours, power saving modes, non-operating periods or
operating temperatures within the published specification.)
egamadon,smrG51.2tazH000,2-01
Quality Acceptance Rate
TBD(< 1,500 DPPM)The quality acceptance rate indicates the percentage of Maxtor
products successfully installed by our customers, and/or the number
of defective parts per million (DPPM) encountered during the entire
installation process.
Start/Stop Cycles
50,000 (minimum)This indicates the minimum cycles for reliable start/stop function at a
≥ 60% confidence level.
Data Reliability
< 1 per 10
14
bits readData errors (non-recoverable). Average data error rate allowed with all
error recovery features activated.
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 component life expires.
3 – 4
PRODUCT SPECIFICATIONS
EMC/EMI
Radiated Electromagnetic Field Emissions - EMC Compliance
The hard disk drive mechanism is designed as a subassembly for installation into a suitable enclosure and is
therefore not subject to Subpart J of Part 15 of FCC Rules (47CFR15) or the Canadian Department of
Communications Radio Interference Regulations. Although not required, the disk mechanism has been
tested within a suitable end-use product and found to comply with Class B limits of the FCC Rules and
Regulations of the Canadian Department of Communications.
The CE Marking indicates conformity with the European Union Low Voltage Directive (73/23/EEC) when
the disk mechanism is 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
This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set
out in the radio interference regulations of the Canadian department of communications.
Le present appareil numerique n'emet pas de bruit radioelectriques depassant les limites applicables aux
appareils numeriques de Class B prescrites dans le reglement sur le brouillage radioelectrique edicte par le
ministere des communications du Canada.
Safety Regulatory Compliance
All Maxtor hard drives comply with relevant product safety standards such as CE, CUL, TUV and UL rules and
regulations. As delivered, Maxtor hard drives are designed for system integration before they are used.
3 – 5
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