US 8,510,525 B2Granted

Method of duplicating segmented data to multiple random accessible storage devices

AssigneeVinpower Inc.

InventorsShuo-Wei Chang, Liao-Hsuan Kuo

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Abstract

A method of duplicating data to multiple random accessible storage devices has steps of reading one segment of source data having multiple segments, continuously detecting newly-connected random accessible storage devices, duplicating same segments to all connected random accessible storage devices, stopping duplicating the source data to any random accessible storage device that has stored all segments of the source data and repeating the steps from the beginning. When duplicating the source data to all connected random accessible storage devices, same segments of the source data are written to all connected random accessible storage devices. Therefore, a single writing task is proceeded in each writing session. The source data can be written to all random accessible storage devices at high speed. Consequently, efficiency of asynchronously duplicating data to multiple random accessible storage devices is increased.

Claims6

Dependent claims

A method of duplicating segmented data to multiple random accessible storage devices, comprising the steps of:

reading one segment of the source data comprising multiple segments;
continuously detecting newly-connected random accessible storage devices;
duplicating same segments to all connected random accessible storage devices;
recording a first segment and a last segment of the source data for each connected random accessible storage device, and each first segment of the source data being the first segment that is written to a corresponding connected random accessible storage device, and each last segment of the source data being the last segment that is written to a corresponding connected random accessible storage device;
determining if any connected random accessible storage device has stored all segments of the source data comprising determining whether the last segment of any connected random accessible storage device has been written therein;
stopping duplicating the source data to any random accessible storage device that has stored all segments of the source data;
and
repeating the steps from the beginning.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/592,089Filed 19 Nov 2009
Published: US 2011/0119428 A119 May 2011
Granted: 13 Aug 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

G06F 3/0604
Specifically adapted to achieve a particular effect: improving or facilitating administration, e.g. storage management
G06F 3/065
Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems: replication mechanisms
G06F 3/0688
Plurality of storage devices: non-volatile semiconductor memory arrays
G06F 3/0632
Configuration or reconfiguration of storage systems: by initialisation or re-initialisation of storage systems