General DC power requirement notes.

1.Minimum current loading for each supply voltage is not less than 1.7% of the maximum operating current shown.

2.The +5V and +12V supplies should employ separate ground returns.

3.Where power is provided to multiple drives from a common supply, careful consideration for individual drive power requirements should be noted. Where multiple units are powered on simultaneously, the peak starting current must be available to each device.

4.Parameters, other than spindle start, are measured after a 10-minute warm up.

5.No terminator power.

6.3.1Conducted noise immunity

Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz. Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive power connector.

+5v

=

250 mV pp from 100 Hz to 20 MHz.

+12v

=

800 mV pp from 100 Hz to 8 KHz.

 

 

450 mV pp from 8 KHz to 20 KHz.

 

 

250 mV pp from 20 KHz to 5 MHz.

6.3.2Power sequencing

The drive does not require power sequencing. The drive protects against inadvertent writing during power-up and down.

6.3.3Current profiles

The +12V (top) and +5V (bottom) current profiles for the Constellation ES.1 drives are shown below.

Figure 1. 2TB model current profiles

Note: All times and currents are typical. See Table 2 for maximum current requirements.

CONSTELLATION ES.1 SAS PRODUCT MANUAL, REV. G

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Seagate ST2000NM0063 manual Conducted noise immunity, Power sequencing, Current profiles
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ST2000NM0063 specifications

The Seagate ST2000NM0063 is a high-performance internal hard disk drive designed for enterprise environments, offering a robust solution for those requiring reliable data storage. With a storage capacity of 2TB, this drive is ideal for both small and large enterprises, catering to applications ranging from data centers to surveillance systems.

One of the main features of the ST2000NM0063 is its 7200 RPM rotational speed, which ensures rapid data access and improved overall performance. This speed allows for faster read and write times, making it suitable for applications that demand quick data retrieval and processing. The drive supports a SATA 6Gb/s interface, which provides enhanced data transfer rates. This modern interface is essential for maximizing throughput, particularly when deployed in environments where speed is critical.

In terms of technology, the Seagate ST2000NM0063 utilizes Advanced Format Technology, enhancing data storage efficiency and increasing the number of user-addressable sectors. This feature allows for better alignment of data on the drive, which can lead to improved performance and reliability. Additionally, the drive incorporates the Seagate PowerChoice technology, enabling energy-efficient operations. This technology helps reduce power consumption during idle periods, contributing to lower operating costs and a smaller carbon footprint.

The ST2000NM0063 also emphasizes data integrity and reliability. Equipped with features such as error recovery control and vibration tolerance, this drive is designed to operate in challenging conditions. These attributes make it an excellent choice for RAID configurations and other enterprise applications that require high data availability and protection against data loss.

Furthermore, the ST2000NM0063 has a mean time between failures (MTBF) rating of 1.2 million hours, signifying its durability and long lifespan. This reliability is crucial for critical business applications where downtime is not an option.

In summary, the Seagate ST2000NM0063 combines high capacity, excellent performance, and advanced technologies to meet the demanding needs of enterprise storage. Its reliability, efficiency, and robust features make it a preferred choice for organizations looking to enhance their data storage solutions while ensuring optimal performance and longevity. Whether utilized in cloud storage, surveillance, or data center applications, this hard drive stands out as a dependable component in any IT infrastructure.
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