DATA DISTRIBUTION METHOD FOR DECENTRALIZED DISTRIBUTED HETEROGENEOUS STORAGE SYSTEM

WIPO Patent Application WO/2017/206649

A1

Disclosed is a data distribution method for a decentralized distributed heterogeneous storage system, comprising the following steps: 1, classifying data objects; 2, classifying storage devices; 3, dividing stored data into different "placement group clusters", each storage device type corresponding to a type of "placement group clusters"; 4, calculating the ratios that each type of data objects to be stored should be placed into different types of "placement group clusters"; 5, determining, by using a hash algorithm, which "placement group" in a "placement group cluster" a data object to be stored belongs; 6, using a data distribution algorithm of a storage system to store data objects in each "placement group" to a plurality of corresponding storage devices; and 7, during the running process of the system, calculating a migration threshold value according to an access feature of a data object, and dynamically migrating the data object. The advantages of the present invention are that the performance, load balancing and extensibility of the storage system are maintained, and the number of writing operations of a solid state disk is also reduced.

JPH11134118	REDUNDANT MAGNETIC DISK DEVICE
WO/2000/016337	DISC DRIVE WITH PREAMPLIFIER FAULT DETECTION FOR DATA INTEGRITY

SHA XINGMIAN (CN)
ZHUGE QINGFENG (CN)
WU LIN (CN)

PCT/CN2017/082718

December 07, 2017

May 02, 2017

Click for automatic bibliography generation  

UNIV CHONGQING (CN)

G06F3/06

CN106055277A	2016-10-26
CN103150263A	2013-06-12
CN103916459A	2014-07-09
CN105589937A	2016-05-18

CHONGQING UNIVERSITY PATENT CENTRE (CN)

View/Download PDF      PDF Help

Previous Patent: METHOD AND DEVICE FOR SHARING FILE IN DLNA NETWORK, AND DLNA SYSTEM

Next Patent: BEARING AND AIR CONDITIONER