METHOD FOR MANAGING INFORMATION ABOUT WHERE FAILURE IS RECOVERED AFTER FAILURE, METHOD FOR RECOVERY AFTER FAILURE, AND METHOD FOR RECOVERING CURRENT VERSION OF DATA ITEM AFTER FAILURE IN SYSTEM INCLUDING MULTIPLE CACHES

摘要

PPROBLEM TO BE SOLVED: To provide techniques for managing caches in a system with multiple caches that may contain different copies of the same data item. PSOLUTION: Entry for data items is removed from a single failure queue without removing entry for the data items from the multiple failure queue in response to a dirty data item being transmitted from a multi-node system to another node. Entries for data items are removed from both queues in response to the dirty data item being written in a persistent storage device. PCOPYRIGHT: (C)2009,JPO&INPIT