摘要
企业信息化实现所必须依赖的关系型数据库是基于共享存储或者热备的方式来实现高可用的。在高可用的实现过程中存在用户需求不明确和硬件投资成本太高的问题,企业对高可用方案的可管理性与系统复杂性之间的矛盾。基于SLA的数据库高可用方案将SLA与数据库可靠性有机的结合在一起,有效的解决了数据库高可用在实施过程中的投资和收益矛盾。
The relational database,which enterprise informatization depends on,achieves high availability basedon shared storage or hot standby.Many problems are encountered in the implementation process of database highavailability,such as ambiguous user requirements,high hardware investment cost,and the contradiction between themanageability of the high availability scheme and the complexity of the system.According to the SLA-based databasehigh availability scheme,the paper organically combines SLA with the database reliability,which effectively solves thecontradiction between investment and profit during the implementation process of database high-availability.
作者
张庆民
ZHANG Qingmin(School of Automation ,Nanjing University of Science and Technology ,Nanjing 210094,China)
出处
《软件工程》
2017年第9期52-55,共4页
Software Engineering
