Title:
METHOD AND SYSTEM FOR STORAGE DEVICE METADATA MANAGEMENT AND PROCESSING
Document Type and Number:
WIPO Patent Application WO/2016/086899
Kind Code:
A1
Abstract:
A method and system for storage device metadata management. The storage device metadata management method comprises: a superblock is formed of at least one erase block; the superblock reserves a space for storing metadata related to the superblock; the metadata related to the superblock comprises a serial number distributed to the superblock and address mapping information in the superblock; the address mapping information stores a mapping relationship from a physical sector address to a logic sector address (S1); when data is written into the superblock, the address mapping information corresponding to the data is also written into the superblock(S2); when a system is recovered, a page table of the storage system is recovered according to the address mapping information of the superblock; the page table marks a mapping relationship from a logic sector address to a physical sector address (S3). The above technical solution can ensure a complete recovery of the page table during startup, as well as ensure a normal operation of the storage device when started.
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Inventors:
ZHOU QIN (CN)
YANG XUESHI (CN)
YANG XUESHI (CN)
Application Number:
PCT/CN2015/096496
Publication Date:
June 09, 2016
Filing Date:
December 04, 2015
Export Citation:
Assignee:
SHANNON SYSTEMS (CN)
International Classes:
G06F12/06
Foreign References:
| CN104461391A | 2015-03-25 | |||
| CN103744795A | 2014-04-23 | |||
| CN102866956A | 2013-01-09 | |||
| CN1936867A | 2007-03-28 | |||
| US20140089630A1 | 2014-03-27 |
Attorney, Agent or Firm:
J.Z.M.C.PATENT AND TRADEMARK LAW OFFICE (CN)
上海光华专利事务所 (CN)
上海光华专利事务所 (CN)
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