数据和索引页被从DASD中读出之后,便进入这些插槽,并留在其中,直到DB 2缓冲区管理器确定那些插槽要用于其他数据。
After being read in from DASD, the data and index pages go into these slots and remain there until the DB2 buffer manager determines that those slots should be used for some other data.
关键字缓冲区保存了myisam表的索引块。
Index Buffer Read:索引页面的缓冲区读数量。
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