There can be up to five stores per storage group, and any number of the five stores may be public folder stores.

每个存储组最多可以有五个存储，这五个存储都可以是公用文件夹存储。

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To minimize the time that it takes to recover an individual database, configure storage limits for the mailbox and public folder stores to constrain databases to a maximum size limit.

若要最大程度减少恢复单个数据库所用的时间，请为邮箱和公用文件夹存储配置存储限制，以便将数据库约束在某个最大大小限制内。

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