DB2 9 & 10 for z/OS Overview

Migration Planning WorkshopIn Memory Table Spaces…• We are able to let DB2 know that you have cachedan entire tablespace into a buffer pool.– Data will be preloaded into buffer pool when object is opened and willremain until closed.> Specified by PGSTEAL=NONE– Excellent for lookup tables and indexes> Small tables that have high I/O rates– Avoid LRU chain maintenance and LC14 contention– Avoid unnecessary prefetch and LC24 contention– IFCID 201 & 202 will be updated to signify this condition201© 2011 IBM Corporation