A device and method for on-demand allocation of storage resource virtualization
A technology of storage resources and on-demand allocation, applied in the field of virtualized clusters, it can solve the problems of inability to meet the storage requirements of virtual servers, affecting the overall performance of enterprise IT systems, occupying server resources, etc., so as to improve the ability to process requests and save procurement costs. Effect
Active Publication Date: 2018-12-25
HANGZHOU DPTECH TECH
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Problems solved by technology
In the prior art, server-based virtualization is to run virtual storage software on the server, but the virtual storage software will occupy the resources of the server, thus affecting the overall performance of the enterprise IT system
However, the allocation of storage resources to virtual servers is usually one-time allocation, which not only makes the allocated storage resources unreusable, but also causes waste of storage resources when the logical space utilization rate of a certain virtual server is low. At the same time, it cannot meet the more storage requirements of a virtual server
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[0016] Server virtualization is to abstract the physical resources of the server into logical resources, and turn one server into several or even hundreds of virtual servers isolated from each other. In this way, hardware such as CPU, memory, and disk can be dynamically managed. Resource pool, thereby improving resource utilization, simplifying system management, and realizing server integration. Virtual storage is to centrally manage multiple storage media, such as disks, RAID, or some external storage devices, through certain means. All storage media are managed in a single storage pool to provide users with large Storage system with high capacity and high data transmission performance.
[0017] Storage resources usually include block devices and file systems, wherein the file system can be automatically expanded, but for some block devices such as external storage devices, in the prior art, allocation can only be performed once when configuring the virtual server. The pres...
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The invention provides a device and a method for allocating storage resources on demand in a virtual manner. The device and the method are applied to physical servers with virtual servers. Processing flow which is execute by the device includes A, monitoring write operation of the virtual servers and generating new logic address requests for the virtual servers when write data errors due to the fact that the storage resources of the virtual servers are full are monitored; B, allocating new storage resources for the virtual servers according to the new logic address requests and updating mapping relations between new logic addresses and physical addresses into mapping tables. The storage resources are provided by external storage equipment of the physical servers. According to the technical scheme, the device and the method have the advantages that the problem of incapability of reallocating storage resources in the prior art can be effectively solved, the request processing capacity of storages can be improved, and large quantities of purchasing costs can be saved.
Description
technical field [0001] The invention relates to the technical field of virtualization clusters, in particular to a device and method for virtualizing storage resource allocation on demand. Background technique [0002] With the maturity of virtualization technology, the fields of application are also increasing, and the scale of virtualization clusters is also increasing. Among them, server virtualization is to abstract the physical resources of the server into logical resources, so that one server can become several or even hundreds of virtual servers isolated from each other, no longer limited by physical boundaries, but the Disks, I / O and other hardware become "resource pools" that can be dynamically managed, thereby improving resource utilization, simplifying system management, and realizing server integration. [0003] Virtual storage is a storage system that centrally manages multiple storage media modules, such as hard disks and RAID, through certain means to provide...
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IPC IPC(8): G06F3/06G06F12/02
Inventor 林宗正
Owner HANGZHOU DPTECH TECH