Identify Device 21

Identify Device command 23 Idle 7, 21

Idle Immediate 21 Idle mode 5, 7 IEC950 11

Information Technology Equipment (ITE) 11 Initialize Device Parameters 21

Input noise ripple 6 input voltage 5 Interface 4 interface 19 Interleave 4

Internal data-transfer rate 4 is 4

ISO document 7779 9 ITE 11

K

Korea Ministry of Information and Communication

(MIC) 11

Korean RRL 11

L

latency 4 latency time 5 LBA mode 3 logical geometry 3

M

maintenance 10 master/slave 2 maximum temperature 8 MIC 11

mounting 17 mounting screws 8 mounting the drive 15

N

noise 6

nominal power 4 Nonoperating shock 8 Nonoperating vibration 9 Nonrecoverable read errors 10

O

Operating power 5

Operating shock 8

Operating vibration 9

P

Physical characteristics 4

point-to-point 2, 16 Power consumption 5 power consumption 5 Power dissipation 5 Power modes 7 Power specifications 5 Power-management modes 7 Power-on to Ready 5 precautions 15

printed circuit board 15 programmable power management 7

R

Radiated RF immunity

10

 

 

Radio and television interference 12

 

radio frequency (RF)

10

 

 

random seeks

5

 

 

 

 

 

Read Buffer

21

 

 

 

 

 

Read DMA

21

 

 

 

 

 

 

Read DMA Extended

21

 

 

Read DMA without Retries 21

 

 

read errors

10

 

 

 

 

 

 

Read Log Ext

21

 

 

 

 

 

Read Multiple

21

 

 

 

 

 

Read Multiple Extended 21

 

 

Read Native Max Address 21

 

 

Read Native Max Address Extended

21

Read Sectors

21

 

 

 

 

 

Read Sectors Extended 21

 

 

Read Sectors Without Retries

21

 

Read Verify Sectors

21

 

 

Read Verify Sectors Extended

21

 

Read Verify Sectors Without Retries

21

read/write actuator arm

5

 

 

Read/write heads

3

 

 

 

 

Read/write power

5

 

 

 

 

Ready to spindle stop

 

5

 

 

Recalibrate

21

 

 

 

 

 

Recording density

4

 

 

 

 

Recording method

4

 

 

 

 

Recording technology

 

4

 

 

relative humidity 8

 

 

 

 

Reliability 10

 

 

 

 

 

 

RF 10

 

 

 

 

 

 

 

RMS read/write current

6

 

 

RoHS

12

 

 

 

 

 

 

 

RRL

11

 

 

 

 

 

 

 

S

S.M.A.R.T. Disable Operations 22 S.M.A.R.T. Enable Operations 22 S.M.A.R.T. Enable/Disable Autosave 22 S.M.A.R.T. Execute Offline 22 S.M.A.R.T. implementation 21

32

NL35 Series 7200.2 SATA Product Manual, Rev. C

Page 38
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Seagate ST3500841NS, ST3500641NS manual Rrl

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.