| 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。 |
| 关键词: SLA；数据库；高可用性；服务质量 |
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中图分类号: TP311.131
文献标识码: A
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| Study on High Availability of the Database Based on SLA |
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ZHANG Qingmin
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( School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China)
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| Abstract: The relational database,which enterprise informatization depends on,achieves high availability based on shared storage or hot standby.Many problems are encountered in the implementation process of database high availability,such as ambiguous user requirements,high hardware investment cost,and the contradiction between the manageability of the high availability scheme and the complexity of the system.According to the SLA-based database high availability scheme,the paper organically combines SLA with the database reliability,which effectively solves the contradiction between investment and profit during the implementation process of database high-availability. |
| Keywords: SLA;database;high availability;service quality |
