Hybrid data storage device with partitioned local memory

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United States of America Patent

PATENT NO 9927981
SERIAL NO

15249866

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Abstract

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Apparatus and method for managing data in a hybrid data storage device. In some embodiments, the storage device has a hard disc drive (HDD) controller circuit coupled to non-volatile rotatable storage media and a solid state drive (SSD) controller circuit coupled to non-volatile solid state memory. A local volatile memory has separate HDD and SSD partitions respectively accessible by the HDD and SSD controller circuits. A top level controller circuit performs a cleaning operation to transfer a data set from the non-volatile solid state memory to the rotatable storage media by issuing a read command to the HDD controller circuit to retrieve the data set to the HDD partition, transferring the data set from the HDD partition to the SSD partition, and issuing a write command to the SSD controller circuit to write the data set from the SSD partition to the non-volatile solid state memory.

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Patent Owner(s)

  • SEAGATE TECHNOLOGY, LLC

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blankenship, Leata Longmont, US 2 5
Keeler, Stanton M Longmont, US 23 489
Larrew, Greg Berthoud, US 2 5
Moon, John Edward Superior, US 19 223

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