Abstract: The availability of SonD system is limited by that of network storage. This paper describes design and implementation of Bluewhale HA-SonD system, which focuses on providing high availability services for client machines and adopts different redundancy mechanisms to each component. The availability evaluation shows that the availability level of HA-SonD system is higher than that of SonD system.

Key words: Service-on-Demand(SonD) system, High Availability(HA), failover

摘要： 基于网络存储的特点造成蓝鲸服务部署系统的可用性从根本上依赖于存储服务系统的可用性。该文设计了为客户机提供高可用服务、针对各部件采用不同冗余机制的蓝鲸高可用服务部署系统。对高可用系统的可用性进行了评估。结果表明，与原服务部署系统相比，该系统拥有更高的可用性等级。

关键词: 服务部署系统, 高可用, 失效切换

CLC Number: 

• TP393