Maxtor 51536U3, 51024U2, 52049U4, 53073U6, 54098U8 specifications CacheManagement

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PRODUCT DESCRIPTION

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)

5 symbols, single burst, guaranteed

Software ECC Correction

22 symbols, single burst, 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.

CacheManagement

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, read- ahead 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.

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Contents DiamondMax Plus Before You Begin U T I O NContents Product Specifications Handling and InstallationDiamondmax Plus 40 Product Manual Interface Commands AT Interface DescriptionHost Software Interface Service and Support GlossaryFigures Introduction MaxtorCorporationManualOrganization AbbreviationsConventions Diamondmax Plus 40 IntroductionDiamondMax Plus 40 Key Features Product DescriptionProduct Features Functional / InterfaceModel CYL SPT MAX LBA CapacityCacheManagement MajorHDAComponents SubsystemConfiguration Jumper Location / ConfigurationJumper Configuration CylinderLimitationJumperDescriptionProductSpecifications DriveConfigurationPerformanceSpecifications ModelsandCapacitiesPhysicalDimensionsmaximum Product SpecificationsPowerRequirements PowerModeDefinitionsEPA Energy Star Compliance EnvironmentalLimitsReliabilitySpecifications Shock and VibrationParameter Operating NON-OPERATING SafetyRegulatoryCompliance EMC/EMIHandlingandInstallation HardDriveHandlingPrecautionsElectro-StaticDischargeESD Installation UnpackingandInspectionPhysicalInstallation RepackingBefore You Begin Hook upSet up Start upInterfaceConnector PIN SignalATInterfaceDescription PinDescriptionSummaryPIN Name Signal Name Signal Description Pin Description TableAT Interface Description Timing Parameters Mode PIO TimingTiming Parameters Mode 0 Mode 1 Mode DMATimingMode MIN MAX Ultra DMA TimingSustained Ultra DMA Data In Burst Device Terminating an Ultra DMA Data In Burst Initiating an Ultra DMA Data Out Burst Device Pausing an Ultra DMA Data Out Burst Device Terminating an Ultra DMA Data Out Burst HostSoftwareInterface Task File RegistersPort Read Write Abrt TK0 AmnfContents LBA Bits Busy Drdy DSC DRQ ERRHost Software Interface LBA DRV HS3 HS2 HS1 HS0CommandRegister Command Name Command Code Parameters Used Timer Value TIME-OUT PeriodSummary SDHControl Diagnostic Registers IENDS0 Reset and Interrupt Handling InterfaceCommands ReadCommands Interface CommandsRead DMA WriteCommands Write Multiple SetFeatureCommands Value DescriptionPowerModeCommands Timer Value TIME-OUT Period InitializationCommands Word Content Description15-8 = PIO data transfer mode Interface Commands Word Content Description Initialize Drive Parameters Seek,FormatandDiagnosticCommands Error Code DescriptionA.R.T. CommandSet Key RegisterServiceandSupport ServicePolicyNoQuibble Service SupportService and Support From DialGlossary Correctableerror DirectaccessDirectmemoryaccess ErrorcorrectioncodeeccHarderror HeaddiskassemblyhdaExtrapulse FeedbackPhaselockedlooppll LandingzoneorlzoneLatebit LatewindowPhasemargin RandomaccessmemoryramReadgatesignal RecoverableerrorSofterror StrobeoffsetsignalUN-CORRECTABLEERROR Unrecoverableerror

51536U3, 53073U6, 52049U4, 54098U8, 51024U2 specifications

The Maxtor 51024U2, 53073U6, 51536U3, 52049U4, and 54098U8 are part of the celebrated Maxtor family of external hard drives, known for their reliability, performance, and technology innovations. These drives cater to various data storage needs, from casual home use to more demanding business applications.

One of the hallmark features of these Maxtor models is their USB connectivity, ensuring compatibility with a wide range of devices. The USB 2.0 interface facilitates data transfer speeds of up to 480 Mbps, while the newer models, like the 54098U8, may also offer USB 3.0 connectivity, enhancing speeds dramatically for compatible devices. This means quicker backups and more efficient file transfers, making it easier for users to manage their digital assets.

In terms of storage capacity, these models vary considerably, accommodating users with diverse needs. The Maxtor 51024U2 features a compact size suitable for portability, perfect for users who need to carry their data on the go. Conversely, the 53073U6 is designed for larger storage requirements, making it suitable for multimedia professionals who handle large files regularly.

Durability is another prominent aspect, with these drives often featuring robust casing to protect against physical damage. Features such as shock resistance help safeguard data during travel, while advanced cooling technologies prevent overheating during use, thereby prolonging the lifespan of the device.

Data management features are also integrated into these Maxtor drives. Users can benefit from bundled software that facilitates backup scheduling, file encryption, and disk management. This software adds an additional layer of security and control over personal data, ensuring that users can easily access their files while maintaining their privacy.

The Maxtor drives prioritize user-friendliness with plug-and-play functionality, which means users can plug the drive into their computer and start using it almost immediately without needing extensive setup procedures. This ease of use ensures that even those who are not tech-savvy can utilize these devices effectively.

In conclusion, the Maxtor 51024U2, 53073U6, 51536U3, 52049U4, and 54098U8 external hard drives are formidable choices for anyone in need of reliable storage solutions. With their impressive features, robust design, and advanced technology, these drives securely meet the demands of various users, making them a staple in data storage technology.
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