How IBM DB2 Data Sharing Enables Continuous Availability, Scalability and Performance

John Campbell IBM Distinguished Engineer How to reduce costs, increase capacity and achieve Continuous Availability with IBM DB2 Data Sharing ! The “Ultimate” Data Server !

John Campbell - Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object]

Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

DB2 Data Sharing Definitions ,[object Object],[object Object],DB2A DB2B DB2n . . . Coupling Facilities

Why Go to DB2 Data Sharing? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Parallel Sysplex (PSX) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

DB2 Data Sharing Architecture IRLM Buffer Pools DB2A Coupling Facilities LOCK1 Group Buffer Pools 1 12 2 3 4 5 6 7 8 9 10 11 SCA Sysplex timers 1 12 2 3 4 5 6 7 8 9 10 11 DB2A Log IRLM Buffer Pools DB2B IRLM Buffer Pools DB2n . . . Shared DASD DB2B Log DB2n Log . . . DB2 Cat/Dir DB2 DBs

Design for Continuous Availability ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],DB2A DB2B DB2n . . . Coupling Facilities

DB2 Member Outage – Planned ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],DB2B . … .. . DB2A DB2n X DB2 Group KEY TO SUCCESS: Applications must be able to run on more than oneDB2 member – several apps are identified as candidates.

DB2 Member Outage – Unplanned ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],DB2A DB2B DB2n . . . Coupling Facilities

Dynamic Workload Balancing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Appl Appl Appl Appl Appl Transaction Managers CICS IMS TM DB2 data sharing group z/OS Parallel Sysplex Network DDF WAS

Data Sharing Performance Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

DB2 Data Sharing OLTP Scalability ,[object Object],[object Object]

Data Sharing Performance in Production ,[object Object],[object Object],[object Object],Note: “Mi” stands for ‘million instructions’ Industry Trx Mgr / DB Mgr z/OS Images CF access per Mi % of used capacity Pharmacy CICS/DB2 3 8 10% Insurance CICS/IMS+DB2 9 9 10% Banking IMS/IMS+DB2 4 8 11% Transportation CICS/DB2 3 6 8% Banking IMS/IMS+DB2 2 7 9% Retail CICS/DB2+IMS 3 4 5% Shipping CICS/DB2+IMS 2 8 9%

Application Changes ? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Customers using DB2 Data Sharing

Why should you exploit DB2 Data Sharing ? ,[object Object],[object Object],[object Object],[object Object]

Continuous Availability ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Enhanced Operational Capability and Return On Investment ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Low Implementation Risk ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

CheckFree – Real Customer Experience

How IBM DB2 Data Sharing Enables Continuous Availability, Scalability and Performance

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