Seagate ST3500641NS, ST3500841NS manual Index

Page 37

Index

A

ACA 11 acceleration 9 acoustics 9 Active 7 Active mode 7 actuator arm 5 AFR 10

Agency certification 11 altitude 8

Ambient temperature 8 ambient temperature 4, 5 Annualized Failure Rate 10 Areal density 4

ATA commands 21

Australia/New Zealand Standard AS/NZS3548 1995 11

Australian Communication Authority (ACA) 11 Australian C-Tick 11

Average latency 4 Average seek time 4

B

buffer 4

Bytes per sector 3

C

cables and connectors 16 Cache 4

capacity 3

case temperature 8 CE mark 11 certification 11 Check Power Mode 21

Class B computing device 11 compatibility 11 Conducted noise 6 Conducted RF immunity 10 Configuring the drive 15 connectors 16

Corrosive environment 13 CSA C22.2 (950) 11 cycles 10

Cylinders 3

D

data-transfer rates 1 DC power 5

Default logical geometry 3

Device Configuration Freeze Lock 21

Device Configuration Identify 21 Device Configuration Restore 21 Device Configuration Set 21 Device Reset 21

dimensions 17 disc surface 5 Download Microcode 21

E

Electrical fast transient 10 Electromagnetic compatibility 11 Electromagnetic Compatibility (EMC) 11 Electromagnetic Compatibility control Regulation 11 Electromagnetic Compatibility Directive (89/336/EEC)

11 Electromagnetic immunity 10 Electrostatic discharge 10 electrostatic discharge (ESD) 15 EN 55022, Class B 11

EN 55024 11

EN 60950 11

Environmental specifications 8

EPRML 4 error-correction algorithms 1 errors 10

ESD 15

EU 11

European Union (EU) requirements 11 Execute Device Diagnostics 21

F

FCC verification 11 features 1

Federal Communications Commission 11 Flush Cache 21

Flush Cache Extended 21 Format Track 21 Formatted capacity 3

G

Gbytes 3 geometry 3 Gs 9

Guaranteed sectors 3 guaranteed sectors 3

H

Handling precautions 15 heads 3

humidity 8

I

I/O data-transfer rate 4

NL35 Series 7200.2 SATA Product Manual, Rev. C

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Contents ST3500841NS ST3500641NS NL35 Series 7200.2 Serial ATAPage Contents NL35 Series 7200.2 Sata Product Manual, Rev. C List of Figures Page NL35 Series 7200.2 Serial ATA IntroductionAbout the Serial ATA interface Default logical geometry Drive specificationsLBA mode Formatted capacityRecording and interface technology Physical characteristicsSeek time Typical seek times msec Read WriteStart/stop times Power specificationsConducted noise Typical current profileVoltage tolerance Active mode Power-management modesIdle mode Sleep modeEnvironmental specifications Vibration AcousticsOperating vibration Nonoperating vibrationReliability Electromagnetic immunityRadio frequency environments Test Description Performance level Reference standardAgency certification Environmental protection Corrosive environment NL35 Series 7200.2 Sata Product Manual, Rev. C Handling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensions-top, side and end viewNL35 Series 7200.2 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 DefinitionSupported ATA commands Supported ATA commandsCommand name Command code in hex F4H Word Description Value Identify Device commandXx07H Bit Word Description if bit is set to Bit WordSet Features command values Set Features commandA.R.T. commands 3 S.M.A.R.T. commands3.1 S.M.A.R.T. Command Transport SCT Code in features register A.R.T. commandNL35 Series 7200.2 Sata Product Manual, Rev. C Internet Seagate Technology support servicesPresales Support Technical SupportData Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Index RRL Sata NL35 Series 7200.2 Sata Product Manual, Rev. C Page Seagate Technology LLC
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ST3500641NS, ST3500841NS specifications

The Seagate ST3500841NS and ST3500641NS are robust hard drives specifically designed for enterprise environments, catering to the demanding needs of data centers, server farms, and storage solutions. These drives are part of Seagate's enterprise series and reflect a commitment to reliability, performance, and capacity.

One of the main features of the ST3500841NS and ST3500641NS is their impressive storage capacity. The ST3500841NS offers 500GB of storage, while the ST3500641NS provides a slightly lower capacity at 640GB. Both drives utilize a standard 3.5-inch form factor, making them suitable for a variety of server and storage configurations. They operate at a high spindle speed of 7200 RPM, which contributes to faster data access and overall improved performance compared to traditional 5400 RPM drives.

These drives are designed to sustain high workloads and feature a mean time between failures (MTBF) rating that ensures reliability over extended periods of operation. With their enhanced error correction capabilities, data integrity is maintained even under heavy loads, making these drives ideal for use in critical applications where data loss is not an option.

The integration of technologies such as Native Command Queuing (NCQ) enhances the performance of these drives in multi-user environments. NCQ allows the drive to optimize the order of read and write commands, reducing latency and improving overall throughput. Furthermore, the ST3500841NS and ST3500641NS both feature an SATA interface, supporting speeds of up to 3.0 Gb/s, which is the standard for modern storage solutions.

Another noteworthy characteristic of these drives is their energy efficiency. Despite their robust performance, the ST3500841NS and ST3500641NS are designed to consume less power, thereby reducing operational costs and contributing to a more sustainable data center environment.

In summary, the Seagate ST3500841NS and ST3500641NS are purpose-built for enterprise applications, offering a blend of capacity, performance, and reliability. Their advanced technologies, coupled with impressive MTBF ratings and energy efficiency, make them suitable for critical applications in various high-demand environments. Whether utilized in small server systems or large-scale data centers, these drives provide the robust performance that businesses require in today’s data-driven landscape.
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