有200多个服务器集群运行有Google文件系统，其中很多集群包含了上千台机器。

There are more than 200 clusters running GFS, and many of these clusters consist of thousands of machines.

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它是一个分布式的内存缓存系统，Facebook(包含其他很多网站)用它作为Web服务器和MySQL服务器之间的缓存层(因为数据库访问相对比较慢)。

It's a distributed memory caching system which Facebook (and a ton of other sites) use as a caching layer between the web servers and MySQL servers (since database access is relatively slow).

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管理员的透视图肯定是不同的，考虑到很多服务器会包含存储系统这一潜在因素(要查看更多创建Ceph集群的信息，见参考资料部分)。

The administrator's perspective will certainly differ, given the potential for many servers encompassing the storage system (see the Resources section for information on creating a Ceph cluster).

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