In VSAM, a catalog entry which describes the index component of a catalog or a key-sequenced cluster. An index entry contains the attributes, passwords and protection attributes, allocation and extent information, and statistics of the index component.

• 在虚拟存储存取方法(VSAM)中,描述目录或关键字顺序簇的索引部分的一种目录项。索引项包括其索引部分的属性、口令和保护属性、空间分配信息以及某些统计信息等。