Like the previous optimizations, this optimization collects related data on the disk to optimize for sequential Read optimization.
与前面其他优化一样,这个优化在磁盘上收集相关的数据,以实现相邻读优化。
DB2 row compression features can decrease disk storage requirements while at the same time improve sequential read access of large queries which perform full table scans.
DB 2行压缩功能可以减少磁盘存储需求,同时改进执行全表扫描的大量查询的顺序读取访问。
Some important JFS2-specific file system performance enhancements include sequential page read ahead and sequential and random write behind.
一些重要的、JFS2特定的文件系统的性能增强功能包括,提前顺序页面读取和延迟顺序、随机写入。
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