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U Series 9 Product Manual, Rev. C 1

1.0 Introduction

This manual describes the functional, mechanical and interface specifications

for the following Seagate

U Series 9

model drives:

• ST3160022A

• ST3120025A

• ST380012A

These drives provide the following key features:

• High instantaneous (burst) data transfer rates (up to 100 Mbytes per second)

using Ultra DMA mode 5.

• Giant magnetoresistive (GMR) recording heads and EPRML technology,

which provide the drives with increased areal density.

• State-of-the-art cache and on-the-fly error-correction algorithms.

• Full-track multiple-sector transfer capability without local processor interven-

tion.

• Quiet operation.

• 350 Gs nonoperating shock.

• SeaTools diagnostic software performs a drive self-test that eliminates

unnecessary drive returns.

• The 3D Defense System™, which includes Drive Defense, Data Defense,

and Diagnostic Defense, offers the industry’s most comprehensive protec-

tion for disc drives.

• Support for S.M.A.R.T. drive monitoring and reporting.

• Support for Read Multiple and Write Multiple commands.

• Support for autodetection of master/slave drives that use cable select

(CSEL).

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Ultra Start 3285 series Handbuch Seite 11