NAS service recovery method and related device under single node failure
A recovery method and single-node technology, applied in program control devices, instruments, computing, etc., can solve problems such as reducing system service efficiency, loss of NAS cluster information, increasing single-node operating pressure, and failure risks, reducing failure risks, The effect of ensuring service efficiency and reducing operating pressure
Active Publication Date: 2022-02-18
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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Problems solved by technology
When the KVM virtual machine on a HOST node in the system fails, the NAS cluster information of the HOST node will be lost
At this time, even if the KVM virtual machine of the HOST node resumes operation after the fault is repaired, it cannot automatically join the NAS cluster due to the loss of NAS cluster information. Therefore, the KVM virtual machine cannot continue to provide NAS services to the outside world. The system can only continue to use the KVM virtual machine of another HOST node to provide NAS services externally, which not only reduces the service efficiency of the system, but also greatly increases the single-node operating pressure and failure risk of the system
Method used
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[0047] The core of this application is to provide a recovery method for NAS services under a single node failure. The single-node operating pressure of the system is further reduced, and the risk of failure is further reduced; another core of the application is to provide a recovery device, system, virtual machine management device and computer-readable storage medium for NAS services under a single-node failure, all of which have the above-mentioned Beneficial effect.
[0048] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by pe...
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This application discloses a recovery method for NAS services under a single node failure, including the virtual machine management device periodically obtaining the first state information of the KVM virtual machine of its own node; judging whether the KVM virtual machine of its own node is in the NAS cluster according to the first state information If so, then obtain the second status information of the KVM virtual machine of the peer node; judge whether the KVM virtual machine of the peer node is in the NAS cluster according to the second status information; if not, add the KVM virtual machine of the peer node to the NAS cluster , in order to restore the NAS service; this method can automatically restore the faulty KVM virtual machine in the NAS cluster system to restore the NAS service, effectively guarantee the service efficiency of the system, and reduce the operating pressure of the single node of the system. The present application also discloses a NAS service recovery device, system, virtual machine management device and computer-readable storage medium under single node failure, all of which have the above-mentioned beneficial effects.
Description
technical field [0001] The present application relates to the technical field of network storage systems, in particular to a method for recovering NAS services under a single node failure, and also relates to a recovery device, system, virtual machine management device and computer-readable storage medium for NAS services under a single node failure. Background technique [0002] NAS (Network Attached Storage, Network Attached Storage System) is a device that is connected to the network and has data storage functions. It is data-centric, completely separates storage devices from servers, and manages data centrally, thereby achieving the purpose of releasing bandwidth and improving performance. , which has the advantages of low cost and high efficiency, and is a dedicated data storage server. Clustered NAS is a NAS service that cooperates with multiple host nodes (HOST nodes) to provide high performance, high availability, or high load balancing. [0003] The NAS cluster sys...
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IPC IPC(8): H04L67/1042H04L67/1097G06F9/455
CPCH04L67/1044H04L67/1048H04L67/1097G06F9/45558G06F2009/45562
Inventor 侯胜伟
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD