Virtualized block storage system and data storage method

Abstract

The invention provides a virtualized block storage system and a data storage method. The system comprises a data center local area network and a plurality of branch local area networks, and the data center local area network communicates with the branch local area network through a generalized network; the data center local area network comprises a data center block storage device interface, and a data center virtual storage array interface and a physical data storage array device which are respectively connected with the data center block storage device interface; the branch local area network comprises a branch block storage device interface and a branch virtual array interface; a first logic memory is virtualized in the physical data storage array device, and thus establishing address mapping between the first logic memory and a branch block storage device interface; and the data center virtual storage array interface communicates with the branch virtual array interface through the first logic memory. Based on the system, the invention also provides a data storage method, and the invention is operated in a calculation instance, so that the limited capacity can be used more flexibly and effectively, and the time delay is reduced.

Description

technical field [0001] The invention belongs to the technical field of virtualized storage, and in particular relates to a virtualized block storage system and a data storage method. Background technique [0002] Many physical storage devices, such as hard drives, are too small, too slow and too unreliable for enterprise storage operations. As a result, many file servers are connected via storage area networks (SANs) to a large number of remote data storage devices, such as disk arrays, tape libraries and optical jukeboxes. To file and application servers, a storage area network appears to be one or more locally attached storage devices. Storage area networks use protocols such as iSCSI and Fiber Channel protocols to communicate with storage clients. These storage area network protocols are based on reading and writing data blocks to a storage device, and typically operate below the level of the file system. Large organizations, such as enterprises, are often geographical...

AI Technical Summary

Problems solved by technology

This bare metal block storage server design may not be well-suited for substrate scaling because the capacity in the expansion of the provider's substrate may be significantly limited compared to the capacity in the availability zone

For example, some substrate extensions may only have a single server (or another small subset of servers), making it impossible to dedicate an entire server to blocking storage resources, preventing that server from being used for compute instances

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