When a failure occurs in an LPAR on a physical computer under an SAN environment, a destination LPAR is set in another physical computer to enable migrating of the LPAR and setting change of a security function on the RAID apparatus side is not necessary. When a failure occurs in an LPAR generated on...http://www.google.com.hk/patents/US7814363?utm_source=gb-gplus-share專利 US7814363 - Virtual computer system and control method thereof