DB2 9 vs Oracle 10g Admin. Technology - IBM

DB2 Information Management물리 데이터베이스 저장 모델DB2 StripingDB2 Table Space~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~alter to add newContainer Stripe Set 0Container Stripe Set 1● DB2 does automatic striping of data among the containers in a table space You just make sure containers fall on different mount points You set PREFETCHSIZE for a table space setting to maximize striped reads & writes Or use block based buffer pools● DB2 does automatic rebalancing of the data between containers when New DMS containers are added to a table space Rebalancing can be avoided during table space alter by• Use of ALTER TABLESPACE ... BEGIN NEW STRIPE SET• With "policy" regulation to control impact on performanceDB2 9 vs Oracle 10g© 2008 IBM Corporation 42