Seagate DB35.4 manual Supported ATA commands, Command name Command code in hex

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4.3Supported ATA commands

The following table lists Serial ATA standard commands that the drive supports. For a detailed description of the ATA commands, refer to the Serial ATA: High Speed Serialized AT Attachment specification. See “S.M.A.R.T. commands” on page 30.for details and subcommands used in the S.M.A.R.T. implementation.

Table 6: Supported ATA commands

Command name

Command code (in hex)

 

 

Check Power Mode

98H or E5H

Device Configuration Freeze Lock

B1H / C1H

Device Configuration Identify

B1H / C2H

Device Configuration Restore

B1H / C0H

Device Configuration Set

B1H / C3H

Device Reset

08H

Download Microcode

92H

Execute Device Diagnostics

90H

Flush Cache

E7H

Flush Cache Extended

EAH

Format Track

50H

Identify Device

ECH

Idle

97H or E3H

Idle Immediate

95H or E1H

Initialize Device Parameters

91H

Read Buffer

E4H

Read DMA

C8H

Read DMA Extended

25H

Read DMA Without Retries

C9H

Read Log Ext

2FH

Read Multiple

C4H

Read Multiple Extended

29H

Read Native Max Address

F8H

Read Native Max Address Extended

27H

Read Sectors

20H

Read Sectors Extended

24H

Read Sectors Without Retries

21H

Read Verify Sectors

40H

Read Verify Sectors Extended

42H

Read Verify Sectors Without Retries

41H

Recalibrate

10H

Security Disable Password

F6H

Security Erase Prepare

F3H

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.