Title:
Data transition for a compound nonvolatile storage
Document Type and Number:
Japanese Patent JP5943096
Kind Code:
B2
Abstract:
Approaches to managing a composite, non-volatile data storage device are described. In one embodiment, a method for managing a composite storage device made up of fast non-volatile storage, such as a solid state device, and slower non-volatile storage, such as a traditional magnetic hard drive, can include maintaining a first data structure, which stores instances of recent access to each unit in a set of units in the fast non-volatile storage device, such as the SSD device and also maintaining a second data structure that indicates whether or not units in the slower storage device, such as the HDD, have been accessed at least a predetermined number of times. In one embodiment, the second data structure can be a queue of Bloom filters.
Inventors:
Macko Peter
One wen guang
One wen guang
Application Number:
JP2014557710A
Publication Date:
June 29, 2016
Filing Date:
February 11, 2013
Export Citation:
Assignee:
Apple Inc.
International Classes:
G06F3/06; G06F3/08; G06F12/08; G06F12/0802
Domestic Patent References:
| JP2008027444A |
Foreign References:
| US20110276744 | ||||
| WO2011144477A1 | ||||
| US20120017041 |
Attorney, Agent or Firm:
Koichi Tsujii
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Eri Koshishiba
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Eri Koshishiba
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