In a multi-node database system, a list of data blocks to perform recovery operations on in the event of failure of a given node is dynamically maintained on another node. List is available when the given node fails, and allows the database to be made available more quickly....http://www.google.com.tw/patents/US7702660?utm_source=gb-gplus-share專利 US7702660 - I/O free recovery set determination
