Seagate ST94811AB manual Introduction, Momentus disc drive

1.0Introduction

This manual describes the functional, mechanical and interface specifications for the Seagate® Momentus™ Blade Server drive:

• ST94811AB

These drives provide the following key features:

•5,400-RPM spindle speed and 8 Mbytes combine for superior performance.

•Quiet operation. Fluid Dynamic Bearing (FDB) motor.

•High instantaneous (burst) data transfer rates (up to 100 Mbytes per second) using Ultra DMA mode 5.

•Tunneling Magnetoresistive (TMR) recording heads.

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

•Full-track multiple-sector transfer capability without local processor intervention.

•800 Gs nonoperating shock and 225 Gs operating 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 protection 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).

Figure 1. Momentus disc drive

Momentus Blade Server Product Manual, Rev. B 1