今天登陆bluehost的cpanel时收到如下提示：

Sorry for the inconvenience!
The filesystem mounted at / on this server is running out of disk space. cPanel operations have been temporarily suspended to prevent something bad from happening. Please ask your system admin to remove any files not in use on that partition.

大意是说是我的主机空间快用光了，cPanel自动关闭。我有些疑惑，bluehost不是说无限空间的么？看来所言不实。幸好SSH还可以用，SSH上去之后，删除了一些无用的备份文件，趁机整理了一下我在bluehost的硬盘空间。再次登陆cpanel，一切正常。

登陆cPanel之后，发现左侧有如下提示：

原来是我的账户下的文件数量超出了限制。

以下是bluehost关于无限空间和文件数量的服务条款：

Unlimited Hosting Space; excessive MySQL files.Bluehost.com does not set arbitrary limits on the amount of disk space a Subscriber can use for the Subscriber’s website, nor does Bluehost.com charge additional fees based on an increased amount of storage used, provided the Subscriber’s use of storage complies with these Terms. Please note, however, that the Bluehost.com service is designed to host websites. Bluehost.com does NOT provide unlimited space for online storage, backups, or archiving of electronic files, documents, log files, etc., and any such prohibited use of the Services will result in the termination of Subscriber’s account, with or without notice. Accounts with a large number of files (inode count in excess of 200,000) can have an adverse affect on server performance. Similarly, accounts with an excessive number of MySQL/PostgreSQL tables (i.e., in excess of 1000 database tables) or of database size (i.e., in excess of 3GB total MySQL/PostgreSQL usage or 2GB MySQL/PostgreSQL usage in a single database) negatively affect the performance of the server. Bluehost.com may request that the number of files/inodes, database tables, or total database usage be reduced to ensure proper performance or may terminate the Subscriber’s account, with or without notice.

服务条款说的很清楚，空间无限，文件数量有限制，文件数量不能超过200,000，数据表不能超过1000张，数据库总容量不能超过3GB，单数据库容量不能超过2GB 。

参考链接：http://www.bluehost.com/cgi/info/terms.html