Seagate DB35.4 manual Xx07H

Page 32

Word

Description

Value

 

 

 

 

 

60–61

Total number of user-addressable LBA sectors available

0FFFFFFFh*

 

 

(see Section 2.2 for related information)

 

 

 

*Note: The maximum value allowed in this field is: 0FFFFFFFh

 

 

 

(268,435,455 sectors, 137 Gbytes). Drives with capacities over 137

 

 

 

Gbytes will have 0FFFFFFFh in this field and the actual number of

 

 

 

user-addressable LBAs specified in words 100-103. This is required

 

 

 

for drives that support the 48-bit addressing feature.

 

 

62

Retired

0000H

 

63

Multiword DMA active and modes supported (see note following this

xx07H

 

 

table)

 

 

64

Advanced PIO modes supported (modes 3 and 4 supported)

0003H

 

65

Minimum multiword DMA transfer cycle time per word (120 nsec)

0078H

 

66

Recommended multiword DMA transfer cycle time per word (120

0078H

 

 

nsec)

 

 

67

Minimum PIO cycle time without IORDY flow control (240 nsec)

00F0H

 

68

Minimum PIO cycle time with IORDY flow control (120 nsec)

0078H

 

69–74

ATA-reserved

0000H

 

75

Queue depth

0000H

 

76

Serial ATA capabilities

xxxxH

 

77

Reserved for future Serial ATA definition

xxxxH

 

78

Serial ATA features supported

xxxxH

 

79

Serial ATA features enabled

xxxxH

 

80

Major version number

003EH

 

81

Minor version number

0000H

 

82

Command sets supported

364BH

 

83

Command sets supported

7C03H

 

84

Command sets support extension

4003H

 

85

Command sets enabled

30xxH

 

86

Command sets enabled

0001H

 

87

Command sets enable extension

4000H

 

88

Ultra DMA support and current mode (see note following this table)

xx3FH

 

89

Security erase time

0000H

 

90

Enhanced security erase time

0000H

 

92

Master password revision code

FFFEH

 

93

Hardware reset value (see description following this table)

xxxxH

 

95–99

ATA-reserved

0000H

 

100–

Total number of user-addressable LBA sectors available (see Section

ST3250310CS =

488,397,168

103

2.2 for related information). These words are required for drives that

 

 

 

support the 48-bit addressing feature. Maximum value:

 

 

 

0000FFFFFFFFFFFFh.

 

 

104–

ATA-reserved

0000H

 

127

 

 

 

128

Security status

0001H

 

26

DB35.4 Series SATA Product Manual, Rev. C

Image 32
Contents DB35.4 Series Sata ST3250310CSRevision history Revision DateContents DB35.4 Series Sata Product Manual, Rev. C List of Figures Page Introduction About the Serial ATA interface Drive specifications Specification summary tablesDrive specifications summary for 250 Gbyte model Drive specification ST3250310CSDB35.4 Series Sata Product Manual, Rev. C Default logical geometry LBA modeFormatted capacity Recording and interface technologyPhysical characteristics Seek timeStart/stop times Typical seek times msec Read WritePower specifications Voltage tolerance Typical current profilesConducted noise Power-management modes Active modeIdle mode Sleep modeEnvironmental specifications Nonoperating vibration VibrationOperating vibration Drive A-weighted Sound Power Levels SWL, BA Acoustics emissionsElectromagnetic immunity Test for Prominent Discrete Tones PDTsSafety certification ReliabilityAgency certification Annualized Failure Rate AFRFCC verification Korean RRLAustralian C-Tick N176 China Restriction of Hazardous Substances RoHS Directive Environmental protectionCorrosive environment Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsMounting dimensions Drive mountingDB35.4 Series Sata Product Manual, Rev. C Serial ATA Sata interface Hot-Plug compatibilitySerial ATA device plug connector pin definitions Serial ATA connector pin definitionsSignal Pin Function DefinitionCommand name Command code in hex Supported ATA commandsSupported ATA commands F4H Identify Device command Word Description ValueXx07H 129 Seagate-reserved Description if bit is set to Bit Word Bit WordSet Features command Set Features command valuesCode in features register A.R.T. command 3 S.M.A.R.T. commandsA.R.T. commands Seagate Technology support services InternetPresales 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.