对于从早期版本的 DB2 迁移过来的已有数据库，需要手动启用自调优内存特性。

For existing databases migrated from earlier versions of DB2, self-tuning memory needs to be enabled manually.

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至少有一个最早的版本上传到了优酷(与YouTube类似的风靡的流媒体视频网站)，并有590万人次访问。

At least one of the earliest uploaded versions of the video on Youku, a popular streaming video site much like YouTube, received 5.9 million views.

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为此，可以使用 setfsoptions 子命令调优 NFS 版本 4。

You do this by using the setfsoptions subcommand to tune NFS Version 4.

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