Most of the file systems communicate through a buffer cache, which is a cache that optimizes access to the physical devices by caching recently touched data.

大多数文件系统都通过缓冲区缓存来相互通信，这种缓存通过缓存最近使用的数据来优化对物理设备的访问。

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DB2 USES buffer pools to cache the table and index data as they are being read or written to the hard disk drive.

当从硬盘驱动器读写表和索引数据时，DB 2使用缓冲池来缓存它们。

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The loss of this data might cause the database to become overloaded, as the cache is no longer acting as a buffer for that subset of the data.

数据的丢失可能造成数据库负荷过多，因为缓存不再充当数据子集的缓冲区。

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