Seagate ST34555N/W manual DC power requirements Amps, Single-ended

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Hawk 4XL Installation Guide, Rev. A

Table 2. DC power requirements (Amps)

 

 

 

 

 

ST34555N/W

 

 

 

 

 

Single-ended

Voltage

+5V

+12V

Regulation [5]

±5%

±5%[2]

Max. operating current

 

 

DC3σ [1]

0.81

0.95

 

 

 

 

[1]

0.46

0.54

Avg. idle current DCX

Max. starting current

 

 

(peak DC) DC3σ [3]

0.78

2.44

(peak AC) AC3σ [3]

 

3.1

Delayed motor start (max)

 

 

DC3σ [1][4]

0.48

0.20

Peak operating current

 

 

 

 

[1][6]

0.75

0.76

Typical DCX

Maximum DC3σ [1]

0.81

0.95

Maximum (peak) 3σ

1.5

2.5

[1]Measured with an average reading DC ammeter. Instanta- neous +12V current peaks will exceed these values.

[2]A –10% droop is permissible during initial start of the spindle but must return to ±5% before reaching 7,200 RPM. The ±5% must be maintained after the drive signifies that its power-up sequence has been completed and that the drive is able to accept selection by the host initiator.

[3]For +12V current profile information, call Seagate technical support services.

[4]This condition occurs when the Motor Start option is enabled and the drive has not yet received a Start Motor command.

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Contents Hawk 4XL Disc Drive ST34555N/W Installation Guide Contents Preface Electrostatic discharge protectionImportant safety information and precautions Page Wichtige Sicherheitshinweise Page Hawk 4XL Installation Guide, Rev. a Regulatory agency compliance Electromagnetic susceptibilityElectromagnetic compliance Electromagnetic compliance for the European Union Australian C-TickSeagate technical support services Online servicesSeagate CompuServe forum FAX services SeaFAXDirect-support services Seagate technical supportCustomer service centers Manufacturer’s representativesGeneral description Drive characteristics RPMDC power requirements Amps ST34555N/WSingle-ended Dimensions of the drive General information Drive modelsScsi ID jumpers Drive termination Terminator power Circuits and data path widthsCable characteristics for single-ended circuits Fifty pin I/O connection to drive N model Multiple drive connection to host adapter Multiple-drive connection to host adapter Providing adequate cooling Kühlung des Systems Suggested air flow Abbildung 4. Empfohlener Luftstromverlauf Mounting the drive and connecting cables Installation des Laufwerkes und Anschluß der KabelHawk 4XL Installation Guide, Rev. a DC power connector Abbildung 5. Gleichstromanschluß Hinweis Page Mounting configuration dimensions Formatting the drive Quick reference desktop system notesSetting the Scsi ID jumpers Setting the Scsi ID on model N drivesTerminating the drive Terminating the driveSetting terminator power jumpers Other applicable jumper options Additional jumper optionsSetting the Scsi ID on model W drives Host Alternate Enable Scsi terminator Disable Scsi terminator Model only Terminator power Other option jumpers are available as illustrated below

ST34555N/W specifications

The Seagate ST34555N/W is a notable hard disk drive that was designed for enterprise and server environments, leveraging cutting-edge technology to meet high-performance requirements. Launched in the 1990s, it became a staple in many data-driven applications, especially in sectors demanding reliable storage solutions.

One of the primary features of the ST34555N/W is its storage capacity, providing users with 4.5 gigabytes of space. This was a significant value during its inception, allowing businesses to handle considerable amounts of data without the need for constant upgrades. The drive is built to accommodate various file types and to support extensive databases, making it ideal for enterprise-level applications.

The drive employs a 3.5-inch form factor, suitable for both desktop and server configurations. It features a SCSI interface, which was favored in many enterprise setups due to its fast data transfer rates and the ability to connect multiple drives in a daisy chain. Operating at a speed of 10,000 RPM, the ST34555N/W offers quick access to data, minimizing latency and enhancing overall system responsiveness.

Incorporating advanced error recovery features, the ST34555N/W ensures data integrity and reliability. The drive is equipped with Seagate's proprietary technologies that detect and correct errors in real-time, reducing the likelihood of data loss. This reliability made the ST34555N/W a trusted option for businesses relying on mission-critical applications.

Another essential characteristic of this hard drive is its thermal management capabilities. Operating within a specified temperature range, the ST34555N/W is designed to maintain performance under strenuous conditions, helping to prolong its lifespan.

Furthermore, the drive includes low power consumption features, making it an efficient choice for energy-conscious enterprises. The Seagate ST34555N/W exemplifies how storage technology evolved during its era, focusing on performance, reliability, and energy efficiency.

In summary, the Seagate ST34555N/W remains a noteworthy example of hard disk technology from the 1990s. With a solid performance profile, high data integrity, and reliable operational characteristics, it paved the way for the development of advanced storage solutions we see today. Even though modern drives have significantly surpassed its capabilities, the ST34555N/W remains a testament to Seagate's commitment to quality and innovation in data storage.
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