HYBRID STORAGE DEVICE
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United States of America Patent
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app pub date -
Mar 30, 2011
filing date -
Apr 5, 2004
priority date (Note) -
Abandoned
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Abstract
A hybrid storage device comprises both solid-state disk (SDD) and at least one hard disk drive (HDD). The hybrid storage device has at least two operational modes: concatenation and safe. According to one aspect, the total capacity of hybrid storage device is the sum of SSD and at least one HDD in a concatenation or big mode, while the total capacity is the capacity of the HDD in a safe mode. In one embodiment, HDD is configured for storing a copy of the SSD's contents in a reserved area. In another, SSD comprises more than one identical flash memory devices controlled by a RAID controller.
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