How does the MIDAW facility improve the performance of FICON channels using DB2 and other workloads?
نویسندگان
چکیده
The Modified Indirect Data Address Word (MIDAW) facility was introduced in the IBM® z9TM processor to improve FICON® performance, especially when accessing IBM DB2® databases. This facility is a new method of gathering data into and scattering data from discontinuous storage locations during an I/O operation. This IBM Redpaper is mainly intended for industry professionals who are interested in understanding IBM z/ArchitectureTM, and people who want to understand the types of workloads that will provide improved performance. Jeffrey Berger Paolo Bruni © Copyright IBM Corp. 2006. All rights reserved. ibm.com/redbooks 1
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