Failover method and device

A failover, storage device technology, applied in response error generation, redundancy in hardware for data error detection, instrumentation, etc., can solve problems such as inability to achieve load balancing, data movement, etc., to reduce failure recovery time and service downtime, the effect of seamless migration

Active Publication Date: 2017-12-29
EMC IP HLDG CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Data cannot be moved between different physical devices, making it impossible to achieve load balancing
In addition, when a VM fails, another VM can only be restarted on a physical machine, which will cause a long service interruption

Method used

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  • Failover method and device
  • Failover method and device
  • Failover method and device

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Embodiment Construction

[0023] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the drawings, it should be understood that the disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein; A more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for exemplary purposes only, and are not intended to limit the protection scope of the present disclosure.

[0024] The terms "including", "comprising" and similar terms used herein should be understood as open-ended terms, ie "including / comprising but not limited to". The term "based on" is "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one further embodiment". Relevant defin...

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Abstract

Embodiments of the invention disclose a failover method and device. In one embodiment, a method executed at a first node in a cluster comprising a plurality of heterogeneous nodes is provided. The method comprises the steps of determining whether an application at a second node in the cluster has a fault or not; and in response to operation of determining that the application has the fault, facilitating data and a service associated with the application to be migrated to a third node in the cluster from the second node, wherein the migration involves at least one node heterogeneous for the second node in the cluster. The invention furthermore discloses a method executed at the third node in the cluster, a corresponding device and a computer program product.

Description

technical field [0001] Embodiments of the present disclosure generally relate to the field of computer technology, and more particularly, to methods and devices for failover. Background technique [0002] With the rapid increase of enterprise digital data, the vertical expansion method of improving system performance and capacity by upgrading hardware is limited by the hardware update speed and cannot meet the growing needs of customers. For this reason, a horizontal expansion method of dynamically upgrading the system by increasing the number of physical devices or virtual devices is proposed. The term "physical device" as used herein refers to physical entities such as workstations, blades, mainframes, desktops, laptops, and the like. The term "virtual device" refers to a logical device such as a virtual machine (VM) running on a physical entity through virtual technology. Compared with vertical expansion, horizontal expansion has obvious advantages in terms of real-time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/20
CPCG06F11/2002G06F11/202G06F11/2094G06F11/2025G06F11/203G06F11/2043G06F2201/815G06F2201/805
Inventor 彭海林邹勇吴鹏
Owner EMC IP HLDG CO LLC
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