Seagate DB35.4 manual

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S.M.A.R.T. Save Attribute Values 24 S.M.A.R.T. Write Log sector 24 Safety certification 14

SATA 21 screws 11 sectors 6 Sectors per track 6

Security Disable Password 23 Security Erase Prepare 23 Security Erase Unit 24 Security Freeze 24 Security Set Password 24 Security Unlock 24

Seek 24 Seek time 7

Serial ATA (SATA) interface 21 serial ATA ports 2

servo electronics 8 Set Features 24 Set Max Address 24

Set Max Address Extended 24 Set Multiple Mode 24 Shock 11

single-track seeks 7 Sleep 8, 10, 24 Sleep mode 10 Specification summary table 3 Spinup 8

Spinup power 8 Standby 8, 10, 24 Standby Immediate 24 Standby mode 8, 10 standby timer 10 Standby to Ready 7 Start/stop times 7 start-stop cycles 14 static-discharge 17 subassembly 15 support services 31 Surge immunity 13

T

technical support services 31 temperature 7, 11 temperature gradient 11 timer 10

timers 10 track density 6 Track-to-track 7

Track-to-track seek time 7

tunneling magnetoresistive (TMR) recording heads 1

U

UL 1950 14

V

Vibration 12 voltage 8

Voltage dips, interrupts 13 Voltage tolerance 9

W

Warranty 14 weight 7

wet bulb temperature 11 width 7

Write Buffer 24

Write DMA 24

Write DMA Extended 24 Write DMA FUA Extended 24 Write DMA Without Retries 24 Write Log Extended 24 Write Multiple 24

Write Multiple Extended 24 Write Multiple FUA Extended 24 Write Sectors 24

Write Sectors Extended 24 Write Sectors Without Retries 24

DB35.4 Series SATA Product Manual, Rev. C

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Contents ST3250310CS DB35.4 Series SataRevision Date Revision historyContents DB35.4 Series Sata Product Manual, Rev. C List of Figures Page Introduction About the Serial ATA interface Specification summary tables Drive specificationsDrive specification ST3250310CS Drive specifications summary for 250 Gbyte modelDB35.4 Series Sata Product Manual, Rev. C LBA mode Default logical geometryFormatted capacity Recording and interface technologySeek time Physical characteristicsStart/stop times Typical seek times msec Read WritePower specifications Voltage tolerance Typical current profilesConducted noise Active mode Power-management modesIdle mode Sleep modeEnvironmental specifications Nonoperating vibration VibrationOperating vibration Acoustics emissions Drive A-weighted Sound Power Levels SWL, BAElectromagnetic immunity Test for Prominent Discrete Tones PDTsReliability Safety certificationAgency certification Annualized Failure Rate AFRFCC verification Korean RRLAustralian C-Tick N176 China Restriction of Hazardous Substances RoHS Directive Environmental protectionCorrosive environment Handling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensionsDB35.4 Series Sata Product Manual, Rev. C Hot-Plug compatibility Serial ATA Sata interfaceSerial ATA connector pin definitions Serial ATA device plug connector pin definitionsSignal Pin Function DefinitionCommand name Command code in hex Supported ATA commandsSupported ATA commands F4H Word Description Value Identify Device commandXx07H 129 Seagate-reserved Bit Word Description if bit is set to Bit WordSet Features command values Set Features commandCode in features register A.R.T. command 3 S.M.A.R.T. commandsA.R.T. commands Internet Seagate Technology support servicesPresales Support Technical SupportData Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index ITE Page DB35.4 Series Sata Product Manual, Rev. C Page Seagate Technology LLC

DB35.4 specifications

The Seagate DB35.4 series of hard disk drives (HDDs) represents a significant advancement in data storage solutions for digital video recording and other demanding applications. Designed specifically for use in DVRs, NVRs, and related multimedia production environments, the DB35.4 drives are tailored to meet the rigorous requirements of streaming and recording high-definition video content.

One of the standout features of the DB35.4 series is its optimized design for continuous operation. These drives are built to handle workloads that involve constant read and write cycles, making them ideal for multi-channel recording setups. With a Mean Time Between Failures (MTBF) rating of 1.2 million hours, the drives ensure reliability and durability, essential for critical applications in broadcasting and surveillance.

The DB35.4 series supports advanced technologies, including native command queuing (NCQ), which enhances performance by allowing multiple read and write commands to be processed simultaneously. This results in improved data transfer rates and reduced latency, which are vital for applications requiring swift access to stored content. With capacities ranging from 250 GB to 2 TB, the drives provide ample space for storing extensive video libraries.

In terms of performance, the DB35.4 features a rotational speed of 7200 RPM, combined with a SATA interface that enables high-speed data transfers. The drives usually come equipped with 8 MB or higher cache memory, further boosting their efficiency during heavy data loads. This ensures that users experience smooth playback and recording, minimizing the risk of dropped frames or buffering.

Energy efficiency is another key characteristic of the Seagate DB35.4 series. Designed with power management in mind, these drives consume less energy during operation while still delivering optimal performance. This not only reduces operational costs but also contributes to a more environmentally friendly solution for users looking to maximize their storage capabilities without excessive power consumption.

In summary, the Seagate DB35.4 HDDs stand out for their reliability, performance, and efficiency. With their specialized design for multimedia applications, advanced technologies like NCQ, and a focus on energy savings, the DB35.4 series remains a preferred choice for businesses and individuals aiming to optimize their digital storage solutions in a demanding video-centric world.
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