Seagate ST446452W manual Drive characteristics

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Elite 47 Installation Guide, Rev. B

15

Table 1: Drive characteristics

 

Interface

Ultra SCSI1

Capacity

 

Unformatted

62.6 Gbytes

Formatted2

47.0 Gbytes

Recording

 

Cylinders (user)

9,996

Read/write data heads

28

Servo

Embedded

Seek time (typical)3

 

Average read

13.0 msec

Average write

14.0 msec

Disc rotation

 

r/min

5,357 +0.5%

Average latency

5.60 msec

Internal transfer rate

125 to 185

(Mbits/sec, variable with zone)

 

Max sync. SCSI transfer rate

40 Mbytes/sec

Multi-segmented cache

4,096 Kbytes

1SCSI-3 can also be operated according to SCSI-1 and SCSI-2 protocols.

2Standard factory units are formatted as follows:

512 data bytes per sector

6 cylinders per region

82 spares per region

3Not including on-board controller overhead.

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Contents Elite Disc Drive ST446452W Contents Electrostatic discharge protection PrefaceImportant safety information and precautions Page Wichtige Sicherheitshinweise Page Elite 47 Installation Guide, Rev. B Electromagnetic compliance Regulatory agency complianceElectromagnetic susceptibility Australian C-Tick Electromagnetic compliance for the European UnionOnline services Technical support servicesSeagate CompuServe forum SeaFAX FAX servicesSeagate technical support Direct-support servicesManufacturer’s representatives Customer service centersGeneral description Drive characteristics Elite 47 Installation Guide, Rev. B Dimensions of the drive Initial setup information Scsi ID jumpers Setting the Scsi ID Drive termination Scsi bus termination Terminating the driveTerminating the drive Terminator powerCircuits and data path widths Setting terminator power jumpersMbytes/s Meters 19.7 ft Meters 9.8 ft Cable characteristics for single-ended circuitsPin wide connection to drive Multiple-drive connection to host adapter Additional jumper options Other applicable jumper optionsLED indicator connections Active, Ready, and Fault indicatorsProviding adequate cooling Kühlung des Systems Suggested air flow Abbildung 10.Empfohlener Luftstromverlauf Installation des Laufwerkes und Anschluß der Kabel Mounting the drive and connecting cablesElite 47 Installation Guide, Rev. B DC power connector Abbildung 11.Gleichstromanschluß Hinweis Page Mounting configuration dimensions Quick reference desktop system notes Formatting the drivePage Page Page Elite 47 Installation Guide, Rev. B Elite 47 Installation Guide, Rev. B

ST446452W specifications

The Seagate ST446452W is a notable entry in the world of hard drives, particularly renowned for its application in enterprise storage solutions during the mid-1990s. Designed primarily for servers and workstations, this drive was part of Seagate's formidable lineup, catering to business needs where reliability and performance were paramount.

With a physical size of 3.5 inches, the ST446452W hosts a storage capacity of 4.5 GB— an impressive figure for its time. This capacity enabled enterprises to store significant amounts of data, including critical applications and databases. The drive employs the SCSI (Small Computer System Interface) interface, specifically the SCSI-2 standard, which was commonplace during that era, allowing for speedy data transfer rates and the ability to connect multiple drives in a single setup.

The Seagate ST446452W features a rotational speed of 7200 RPM, contributing to its performance efficiency and response times. This speed, combined with an average seek time of around 9 milliseconds, positioned the ST446452W as a competitive option for database applications, file servers, and other data-intensive tasks.

One of the key technologies employed in the ST446452W is the use of magneto-resistive (MR) head technology. This advancement allowed for improved data density, ultimately enhancing the drive’s ability to read and write data at lower error rates. The drive also features a buffer cache, which serves to improve data throughput by temporarily storing frequently accessed data, minimizing seek times.

With its robust construction and reputation for reliability, the Seagate ST446452W proved to be a trusted choice for IT professionals seeking longevity in their storage solutions. Its design included features such as internal shock mounting and thermal management systems to ensure optimal performance under various conditions. These characteristics made the ST446452W an ideal candidate for mission-critical applications where downtime needed to be minimized.

In conclusion, the Seagate ST446452W encapsulates the technological advancements and engineering prowess of its time. Its integration of SCSI interface technology, high RPM speeds, and innovative data management features cemented its place in the legacy of data storage solutions, laying groundwork for subsequent generations of hard drives. Though it may be considered obsolete in today’s context, the ST446452W remains a significant reference point in the evolution of hard drive technologies.