Energy-saving-oriented high-reliability data storage method in data center environment
A data center and data storage technology, which is applied to the redundancy in computing for data error detection, energy-saving computing, electrical digital data processing, etc. energy consumption, the effect of solving energy consumption
Inactive Publication Date: 2012-11-14
NAT UNIV OF DEFENSE TECH
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Under the data sequential placement method, a large number of nodes can be shut down while maintaining data availability, but its data recovery ability is poor
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[0033] Fig. 1 is the overall flow chart of the present invention
[0034] Step 1: Cluster division, numbering the internal nodes of each rack, and forming the entire cluster into multiple logical rings that are not intersecting each other.
[0035] Step 2: Divide the files to be stored and determine the number of data backups.
[0036] Step 3: Use a hybrid data storage method to select a storage location for the data block copy.
[0037] Fig. 2 is a flow chart of storing data in the third step of the present invention using a hybrid storage method.
[0038] 3.1: Initialize the number c of data blocks to be stored in the queue, where c=h.
[0039] 3.2: Point the current data block pointer t to the data block at the head of the queue.
[0040] 3.3: If t≤c, go to 3.4, otherwise go to 3.8.
[0041] 3.4: Determine the storage location for the k copies of the data block pointed to by the pointer t, and set the initial value of the copy number p of the data block to 1.
[0042] ...
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The invention discloses an energy-saving-oriented high-reliability data storage method in a data center environment, aiming at solving the technical problem that a hybrid high-reliability data storage method is provided under the condition of an energy-saving-oriented closed node. In the method, a large number of nodes are allowed to be closed so as to reduce power consumption, and at least one copy of all data is ensured to be stored on active nodes, thus availability of the data is kept. The method comprises the following steps of: firstly dividing clusters and numbering nodes in racks to form logical rings as well as numbering the nodes among the racks to form mutually non-intersected rings; then dividing files to be stored and determining backup quantity of data; and determining a copy placement position of each data block in a queue by adopting a hybrid data storage method. In the method, large-scale node closure and reduction of the power consumption can be supported, reliability of the data can be ensured, and data recovery capability is strong, thus the problems of the energy consumption of a data center and the reliability of the data are effectively solved.
Description
technical field [0001] The invention relates to a data storage method in a distributed file system, and in particular provides a highly reliable data storage method under the condition of data center energy saving. Background technique [0002] In recent years, the energy consumption of data centers has received more and more attention. At present, the high power consumption and high overhead of the data center seriously restrict its scale expansion. The cost related to power consumption, such as the cost of the power supply system, the cost of the cooling system, and the cost of fault-tolerant backup, will exceed the cost of computing resources. Therefore, how to Reducing power consumption and saving costs has become a matter of great concern in academia and industry. The researchers found that the utilization rate of the data center is between 20% and 30% most of the time, but the corresponding energy consumption accounts for more than 60% of the energy consumed under the...
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IPC IPC(8): G06F17/30G06F11/14
CPCY02D10/00
Inventor 李姗姗廖湘科吴庆波戴华东何连跃林彬王蕾任怡黄辰林
Owner NAT UNIV OF DEFENSE TECH