TerraServer SAN集群体系结构和操作经验
TerraServer SAN-Cluster Architecture and Operations Experience
摘要：
Microsoft TerraServer在可通过Internet访问的SQL数据库中显示地球的航空、卫星和地形图像。它是最受欢迎的在线地图集之一，展示了来自美国地质调查局（USGS）的17 TB图像数据。该系统最初于1998年部署，展示了PC硬件和软件（Windows和SQL Server）在单个大型机级处理器上的可扩展性。2000年9月，后端数据库应用程序迁移到连接到18 TB存储区域网络（SAN）的4节点主动/被动群集。新配置旨在实现后端应用程序的99.99%可用性。本文介绍了TerraServer集群和SAN的硬件和软件组件，并介绍了我们三年来配置和操作该系统的经验。毫不奇怪，硬件和架构提供了超过4个9的可用性，但操作错误提供了3个9。
英文摘要：
Microsoft TerraServer displays aerial, satellite, and to-pographic images of the earth in a SQL database available via the Internet. It is one of the most popular online at-lases, presenting seventeen terabytes of image data from the United States Geological Survey (USGS). Initially de-ployed in 1998, the system demonstrated the scalability of PC hardware and software - Windows and SQL Server - on a single, mainframe-class processor. In September 2000, the back-end database application was migrated to 4-node active/passive cluster connected to an 18 terabyte Storage Area Network (SAN). The new configuration was designed to achieve 99.99% availability for the back-end application. This paper describes the hardware and software components of the TerraServer Cluster and SAN, and describes our experience in configuring and operating this system for three years. Not surprisingly, the hardware and architecture delivered better than four-9's of availability, but operations mistakes delivered three-9's.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
