基于数据备份的异构平台虚机迁移方法研究

Research on Virtual Machine Migration Method of Heterogeneous Platform Based on Data Backup

OpenStack已经成为基础设施云(IAAS)事实的标准,已经在世界范围内大规模使用。如何将传统物理机承载的业务,其他虚拟化虚机上承载的业务迁移成OpenStack管理的虚机成为衡量一个OpenStack厂商的能力的标志。文章提出一种通用的虚机业务迁移方法,这种方法可以屏蔽物理机、各个虚拟化厂商之间的差异,还详细的叙述了此方法的实现的思路和架构。此方案有几个比较核心的优势:可以支持增量迁移,保证业务的停服时间保持在分钟级别;统一的架构,支持各种类型的服务器都可以基于此方案进行业务的迁移,包括物理机,VMware,Xen,Hyper-V,阿里,腾讯,华为等多种服务器;支持大规模并发,基于整个方案架构可以支持虚机业务大规模的并发,同时由于方案支持流量控制,可以保证迁移对整个生产环境没有任何的影响;业务影响可控,整个迁移过程中虚机不需要关机,且采用流量控制技术保证迁移过程中虚机负载保持在可控范围内。文章首先分析现有的跨平台业务迁移的技术的优缺点,并给出了客户真正需要东西。在此基础上,提出了基于数据备份的跨平台的业务迁移办法。在介绍这个方法的过程中,主要倾向于介绍迁移方法的架构,具体的设计思路以及方案的优点。最后采用实际的业务迁移来进行验证,通过具体指标来证明该方案的有效性和实用性。

OpenStack has become the standard for infrastructure cloud(IAAS) facts and has been used on a large scale worldwide. How to migrate traditional physical machine services and other virtualized virtual machines to OpenStack-managed virtual machines becomes a sign of the ability of an OpenStack vendor. This paper proposes a general virtual machine business migration method that shields the differences between vendors.This solution has several core advantages: it can support incremental migration, ensuring that the service downtime is kept at the minute level;a unified architecture that supports various types of servers can be used to migrate services based on this solution, including physical machines., VMware, Xen, Hyper-V, Ali, Tencent, Huawei and other servers;support large-scale concurrency, based on the entire solution architecture can support large-scale concurrent virtual machine business, while the solution supports flow control, can guarantee the migration to the whole The production environment has no impact;the business impact is controllable, the virtual machine does not need to be shut down during the entire migration process, and the flow control technology is adopted to ensure that the virtual machine load remains within the controllable range during the migration process.The article first analyzes the advantages and disadvantages of the existing cross-platform business migration technology, and gives the customer what they really need. On this basis, a cross-platform business migration method based on data backup is proposed. In the process of introducing this method, I mainly tend to introduce the architecture of the migration method, the specific design ideas and the advantages of the solution.In the end, the actual business migration is used to verify, and the effectiveness and practicability of the scheme are proved by specific indicators.