Consolidating Oracle to Linux on System z Selecting a Database

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1 Consolidating Oracle Linux on System z Selecting a Database Oracle Database Oracle Application Server Oracle Applications Denny Dutcavich Technical Sales Specialist dutch@us.ibm.com Trademarks Trademarks The following are trademarks the International Business Machines Corporation in the United States andor other countries. For a complete list IBM Trademarks, see AS400, DBE, e-business logo, ESCO, eserver, FICON, IBM, IBM Logo, iseries, MVS, OS390, pseries, RS6000, S30, VMESA, VSEESA, Websphere, xseries, zos, zseries, zvm The following are trademarks or registered trademarks other companies Lotus, Notes, and Domino are trademarks or registered trademarks Lotus Development Corporation Java and all Java-related trademarks and logos are trademarks Sun Microsystems, Inc., in the United States and other countries LINUX is a registered trademark Linux Torvalds UNIX is a registered trademark The Open Group in the United States and other countries. Microst, Windows and Windows NT are registered trademarks Microst Corporation. SET and Secure Electronic Transaction are trademarks owned by SET Secure Electronic Transaction LLC. Intel is a registered trademark Intel Corporation * All other products may be trademarks or registered trademarks their respective companies. NOTES: Performance is in Internal Throughput Rate (ITR) ratio based on measurements and projections using standard IBM benchmarks in a controlled environment. The actual throughput that any user will experience will vary depending upon considerations such as the amount multiprogramming in the user's job stream, the IO configuration, the srage configuration, and the workload processed. Therefore, no assurance can be given that an individual user will achieve throughput improvements equivalent the performance ratios stated here. IBM hardware products are manufactured from new parts, or new and serviceable used parts. Regardless, our warranty terms apply. All cusmer examples cited or described in this presentation are presented as illustrations the manner in which some cusmers have used IBM products and the results they may have achieved. Actual environmental costs and performance characteristics will vary depending on individual cusmer configurations and conditions. This publication was produced in the United States. IBM may not fer the products, services or features discussed in this document in other countries, and the information may be subject change without notice. Consult your local IBM business contact for information on the product or services available in your area. All statements regarding IBM's future direction and intent are subject change or withdrawal without notice, and represent goals and objectives only. Information about non-ibm products is obtained from the manufacturers those products or their published announcements. IBM has not tested those products and cannot confirm the performance, compatibility, or any other claims related non-ibm products. Questions on the capabilities non-ibm products should be addressed the suppliers those products. Prices subject change without notice. Contact your IBM representative or Business Partner for the most current pricing in your geography. References in this document IBM products or services do not imply that IBM intends make them available in every country. Any proposed use claims in this presentation outside the United States must be reviewed by local IBM country counsel prior such use. The information could include technical inaccuracies or typographical errors. Changes are periodically made the information herein; these changes will be incorporated in new editions the publication. IBM may make improvements andor changes in the product(s) andor the program(s) described in this publication at any time without notice. Any references in this information non-ibm Web sites are provided for convenience only and do not in any manner serve as an endorsement those Web sites. The materials at those Web sites are not part the materials for this IBM product and use those Web sites is at your own risk. Chart 2 1

2 Agenda Why Consolidate the premise What look for Best Fit Selecting an Application Database for Linux on System z What you need know about testing Success Facrs The Process Chart 3 Why Oracle for Linux on System z Value Statement The best TCO characteristics can be obtained from consolidating many servers with low CPU utilization and taking advantage the virtualization capabilities zvm. Lower hardware and stware costs Ease operations Simplified infrastructure On Demand servers However, Linux scales well in an LPAR or with zvm and may resolve other issues or problems such as availability. The new System z10 EC class machines compete with other technologies (We re fast) Great scalability for consolidation or single large databases Linux provides for a common skill base on all architectures it runs on System z differentiars Inherited hardware quality service Proximity zos Green Multicore Pricing now available for z10 Chart 4 2

3 Commercial Workloads under Virtualization Typical PartitionWorkload Size in Virtualized Environment Very Small Small Medium Large Very Large Linux on z AIX on POWER zos on z Parallel Sysplex Linux on zvm Very low latency hardware based virtualization Large tagged TLB Virtualized memory No minimum VMLPAR size Small Linux code footprint IO priority mechanism in zvm Linux OS scalability AIX on PowerVM Paravirtualization hardware assists LPAR Size: CPUs AIX scalability 128 CPUs High clock speed SMT Minimum entitlement required Non-goal mode WLM No IO priority capability in VIOS No virtualized memory support zos on PRSM Direct IO virtualization Significant IO fload Goal based WLM Intelligent Resource Direcr Significant zos features Centralized vs. distributed model DB2 data sharing Sysplex No virtualized memory support Relatively large zos footprint Chart 5 Oracle for Linux on System z Potential Candidates MediumHigh MediumHigh Peak Peak Average Average (HW (HW SW SW Apps Apps with with multiple multiple environments environments that that cumulatively cumulatively have have medium medium high high peak peak average average ratio ratio OracleDB2 OracleDB2 databases databases WebSphere WebSphere Tivoli Tivoli Moniring Moniring Sandbox Sandbox Training Training servers servers zos Affinity (Performance Security HW) CICS IMS Gateways DB2 connect Applications with significant zos data affinity such as WAS SAP Application Servers with zos database DB2 on zos -ziip fload candidates Communication Controller Quality Quality (People (People Business Business Impact) Impact) System System z z Hardware Hardware zvm zvm - - very very mature mature Hypervisor Hypervisor Fewer Fewer critical critical Linux Linux patches patches bureau bureau virtual virtual hosting hosting Lotus Lotus Domino Domino Infrastructure Infrastructure LDAP, LDAP, DNS, DNS, TSM, TSM, TIMTAM TIMTAM Ease Ease DR DR Complete Complete TCO TCO View View (PeopleOther (PeopleOther Leverage Leverage aumation aumation and and shared shared infrastructure infrastructure market market Replicated Replicated middleware middleware including including WebSphere, WebSphere, Oracle, Oracle, DB2, DB2, etc. etc. Linux Strategy (People Flexibility) Significant industry growth in the Linux applications IFLs have strong IT industry adoption Common OS across platforms reduces administrative costs Other (HW SW MQSeries Queue Manager IBI WebFOCUS FTP Chart 6 3

4 Selecting an Application Where start Good planning is essential. Any man can make a long journey, it takes a smart man know which direction. (Confucius) IBM can provide a no-cost application assessment Sizing is critical Techline (Through IBM rep) can provide the following SURF - SCON Utilization Reduction Facility zrace Sizing with TCO zvm Planner for Linux Guest Sizing Work directly with an applications team Databases are driven by an application Work as a team demonstrate success This can provide the start a process decide where new applications are implemented Make sure you have a management sponsor Success sries trump politics Chart 7 Selecting an Application What kind database look for Start with databases that are on lower utilized servers Select several databases for a PoC PoC should not be a performance test It should be several databases andor application servers Look for databases with 1 s Gbytes in size up about 60 GBytes SGAs up approximately 1.5 GBytes Work wards larger databases (100s Gbytes) TBytes not out scope Continue assess servers for consolidation Chart 8 4

5 Testing an Application Testing on Linux for System z Test workloads selected for Linux on System z This may be a difficult part process Benchmark testing (e.g. TPC-C) may not provide results needed make a consolidation technology decision AIM9 Benchmark Facry TPM-C and others If you can t test your application with either a production like database or testdevetc. consider WASTrade Swingbench warehouse application Loadrunner (getting expensive) I never blame myself if I am not hitting. I just blame the bat, and if that keeps up, I change bats. Yogi Berra Chart 9 Design choices affect benchmark performance MixedWLMVirtualization Processor Cache Processor Cache Working set(s) o large for cache Requires more context switching Maximized Processor speed penalized Fast processor is under-utilized Replicated Cache contains multiple working sets Processor speed optimized by cache Space is valued All slow processor is used Consolidated Chart 10 5

6 Key Success Facrs zvm and Linux Use zvm 5.3 Move a current System z Memory is critical Right-size the virtual guest; less is better even with zvm 5.3 Monir resources excellent ols available IBM Performance Toolkit ESAMON from Velocity Stware Omegamon from Tivoli Paging and swap space necessary Use memory devices first Use Best Practices for setting up paging space Avoid IO bottlenecks Distribute data in the ESS across arrays Stripe the LVM2 (or use Oracle ASM) Use either FICON or FCP (FCP preferred) Chart 11 Key Success Facrs - Oracle File Systems Ext23 EXT3 most common with LVM2 ASM good choice OCFS2 not aware z cusmers using ReiserFS - slow XFS can not do aio and dio at the same time (doc note ) Init.ora Parameters FILESYSTEMS_IO = SETALL Parallel query Perform normal tuning in concert with Linux configuration RAC Use for HA instead instance failover Consider protecting single instance with CRS Integral part grid if on a grid or consolidation strategy Chart 12 6

7 From Plan Production A Process not a Project Phase I Phase II Phase III Phase IV Phase V Understand Benefits Select Applications Enlist Advocates** Develop PoC Success Criteria** Define PoC Effort Identify Servers Size Servers Execute PoC Status Meetings** Validate Results Initial Production Plan Order Move How Move Develop Architecture** New App Process ** Critical tasks Even if you re on the right track, you ll get run over If you just sit there Yogi Berra Chart 13 Information Sources SG Experiences with Oracle9i for Linux on zseries SG Experience with Oracle Database 10g on Linux for zseries SG Experiences with Oracle 10gR2 Solutions on Linux for System z SG Linux for IBM System z9 and zseries IBM platform information (Select Downloads ) General zvm Tuning Tips Lot s information on Linux for zseries Hints and Tips for tuning Linux on System z Special Interest Group Oracle users on the mainframe (zos and Linux) Marist List Server The Mainframe Renaissance Chart 14 7