Storage node management method, control subsystem and storage system
A technology for storage nodes and storage systems, applied in the field of control subsystems, storage systems, and storage node management methods, can solve problems such as wasting time and computing power, and achieve the effect of reducing time and reducing reconstruction
Inactive Publication Date: 2009-12-09
HUAWEI DIGITAL TECH (CHENGDU) CO LTD
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Problems solved by technology
Obviously, the system wastes a lot of time and computing power to restore data that is not lost
Method used
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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0020] In the embodiment of the present invention, the storage system includes a control subsystem and a storage node. The control subsystem can set identification information for all storage nodes owned by the storage system, and can identify the lost storage node when it is found again. The storage node can save the storage node. The identification information set by the system. The storage node described in the embodiment of the present invention can be a t...
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The invention discloses a storage node management method, a control subsystem and a storage system, wherein, the method includes: obtaining the identification information of a newly accessed storage node; comparing the identification information of the newly accessed storage node with the identification information of a prestored storage node; and under the circumstances that the newly accessed storage node is judged to be the original offline node maintaining the original identification information according to the result of comparison and the reconstruction of the original offline node is not accomplished, the reconstruction of the original offline node is stopped. In the technical scheme provided in the embodiment of the invention, the identification information of the newly accessed storage node is compared with the identification information of the prestored storage node, and the reconstruction of the original offline node is stopped under the circumstance that the newly accessed storage node is the original offline node, thereby effectively reducing the unnecessary reconstruction in the storage system and reducing the time of repairing the storage system.
Description
technical field [0001] The present invention relates to the technical field of storage, in particular to a storage node management method, a control subsystem and a storage system. Background technique [0002] Many redundancy technologies are often used in the storage system to improve system reliability, such as RAID (Redundant Array of Independent Disk, Redundant Array of Independent Disks). When a single disk in the system fails, the system can rely on redundancy to continue to provide services. After replacing a new disk, the system reconstructs the data on the disk based on the data on other disks. Traditional RAID is the redundancy between disks, but with the development of storage technology, many RAID technologies are no longer limited to the disk level technology, but a collective name for various similar redundancy technologies in the storage industry. Object-based, storage node-based (possibly a disk array) stripe checksum and redundancy technology emerges. [...
Claims
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Inventor 赖俊臣
Owner HUAWEI DIGITAL TECH (CHENGDU) CO LTD