US 12,347,454 B1 · High-density archival storage using conventional hard disk drive architecture

Abstract

Described are hard disk drives (HDDs) operable for archival applications and utilizing the same mechanical and electrical design of conventional HDDs. The capacity of a conventional HDD may be extended by up to 25% to 40% or more by employing multiple write and/or read spins before declaring success in write and read processes. The multiple write and/or read spins are designed to address the lower reliability that would otherwise result from high density packing of the data, at the cost of reducing performance. The result is an HDD with lower performance at higher capacity without sacrificing reliability and without altering conventional HDD mechanical or electrical design.

Claims20

Dependent claims

A method for operating a conventional HDD in a high-density archival storage mode, the method comprising:

providing an HDD configured to store data on a spinning magnetic disk using a recording head, the HDD having an architecture configured to simultaneously meet pre-defined specifications for an areal density metric, a performance metric, and a reliability metric;
writing data to the spinning magnetic disk at a density that exceeds the pre-defined specification for the areal density metric;
and
increasing command completion times to thereby reduce performance below the pre-defined specification for the performance metric and to maintain reliability within the pre-defined specification for the reliability metric.

1 more element

Dependencies are inferred from the claim text.

High-density archival storage using conventional hard disk drive architecture

Life of this patent

High-density archival storage using conventional hard disk drive architecture

Life of this patent

Abstract

Claims20