Seagate DB35.4 manual Index

Page 39

Index

A

ACA 15 acceleration 12 acoustics 13 Active 10 Active mode 10 AFR 14

Agency certification 14 altitude 11

ambient temperature 7, 8 Annualized Failure Rate 14 Annualized Failure Rate (AFR) 14 areal density 1, 6

ATA commands 23

Australia/New Zealand Standard AS/NZS3548 1995 15

Australian Communication Authority (ACA) 15 Australian C-Tick 15

Average seek time 7

B

buffer 7

C

cables and connectors 18 cache 7

capacity 6

case temperature 11 CE mark 14 certification 14 Check Power Mode 23 China RoHS directive 16 compatibility 14 Conducted noise 9 Conducted RF immunity 13 Configuring the drive 17 connectors 18 Corrosive environment 16 CSA C22.2 (950) 14 cycles 14

Cylinders 6

D

data-transfer rates 1 DC power 8

Default logical geometry 6 density 6

Device Configuration Freeze Lock 23 Device Configuration Identify 23 Device Configuration Restore 23 Device Configuration Set 23

Device Reset 23 dimensions 19 dissipation 8 Download Microcode 23 duty cycle 14

E

Electrical fast transient 13 Electromagnetic compatibility 14 Electromagnetic Compatibility (EMC) 15 Electromagnetic Compatibility control Regulation 15 Electromagnetic Compatibility Directive (89/336/EEC)

14 Electromagnetic immunity 13 Electrostatic discharge 13 electrostatic discharge (ESD) 17 EN 55022, Class B 14

EN 55024 14

EN 60950 14 enclosures 15 Environmental specifications 11

EPRML 1 error-correction algorithms 1 errors 14

ESD 17

EU 14

EU RoHS directive 16

European Union (EU) requirements 14 Execute Device Diagnostics 23

F

FCC verification 15 features 1

Flush Cache 23

Flush Cache Extended 23 Format Track 23 Formatted capacity 6

G

geometry 6 Gs 12 guaranteed sectors 6

H

Handling precautions 17 heads 6

height 7 humidity 11

I

I/O data-transfer rate 6

I/O duty cycle 14

Identify Device 23

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 Recording and interface technology Default logical geometryLBA mode Formatted capacityTypical seek times msec Read Write Physical characteristicsSeek time Start/stop timesPower specifications Typical current profiles Conducted noiseVoltage tolerance Sleep mode Power-management modesActive mode Idle modeEnvironmental specifications Vibration Operating vibrationNonoperating vibration Test for Prominent Discrete Tones PDTs Drive A-weighted Sound Power Levels SWL, BAAcoustics emissions Electromagnetic immunityAnnualized Failure Rate AFR Safety certificationReliability Agency certificationKorean RRL Australian C-Tick N176FCC verification Environmental protection Corrosive environmentChina Restriction of Hazardous Substances RoHS Directive 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 interfacePin Function Definition Serial ATA device plug connector pin definitionsSerial ATA connector pin definitions SignalSupported ATA commands Supported ATA commandsCommand name Command code in hex 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 command3 S.M.A.R.T. commands A.R.T. commandsCode in features register A.R.T. command Technical Support Seagate Technology support servicesInternet Presales SupportWarranty Service Data Recovery Services Authorized Service CentersData Recovery Services Call Center Toll-free Direct dial 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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