Seagate ST94811AB Computer Drive User Manual


 
Momentus Blade Server Product Manual, Rev. A 1
1.0 Introduction
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.
• 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 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