Seagate ST3500641NS, ST3500841NS manual Serial ATA Sata interface, Hot-Plug compatibility

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4.0Serial ATA (SATA) interface

These drives use the industry-standard Serial ATA interface that supports FIS data transfers. It supports ATA programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–6.

For detailed information about the Serial ATA interface, refer to the “Serial ATA: High Speed Serialized AT Attachment” specification.

4.1Hot-Plug compatibility

NL35 Series 7200.2 Serial ATA drives incorporate connectors which enable you to hot plug these drives in accordance with the Serial ATA II: Extension to Serial ATA 1.0a specification. This specification can be down- loaded from www.serialata.org.

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.