Seagate Momentus 42 ST92014A, Product Manual

Page: 11 / 48

Momentus 42 Product Manual, Rev. A 1
1.0 Introduction
This manual describes the functional, mechanical and interface specifications for the following Seagate
®
Momentus™ 42 drives:
• ST94019A
• ST92014A
• ST93015A
These drives provide the following key features:
• 4,200-RPM-class
1
performance spindle speed and 2-Mbyte buffer 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 42 disc drive
1
Actual spin speed is 5,400 RPM.