1. © 2008 Gelb Information Systems Corp. - www.gelbis.com 1 Think Faster with Gelb Information Ivan Gelb, GIS Corp. Z10 News and Views Friday, November 14, 2008

2. © 2008 Gelb Information Systems Corp. - www.gelbis.com 2 Think Faster with Gelb Information Session Abstract  Should businesses considering computer systems acquisitions in general be excited about the IBM z10 announcements? Should performance analysts and capacity planners in particular be more or less excited? These will be the two key questions answered by the presented independent analysis of IBM's announcements. You will get ALL your related questions answered..

3. © 2008 Gelb Information Systems Corp. - www.gelbis.com 3 Think Faster with Gelb Information TRADEMARKS  The following are trade or service marks of the IBM Corporation: z9, z10, CICS, CICS TS, CICSPlex, DB2, IBM, MVS, OS/390, z/OS, Sysplex, Parallel Sysplex. Any omissions are purely unintended.  © 2008 Gelb Information Systems Corp. URL: www.gelbis.com Phone: 732-303-1333 No part of this material can be reproduced by any means without prior written permission from the author and with proper attribution displayed.

4. © 2008 Gelb Information Systems Corp. - www.gelbis.com 4 Think Faster with Gelb Information MOTHER OF ALL DISCLAIMERS (MOAD )  All of the information in this document is tried and true. However, this fact alone cannot guarantee that you can get the same results at your place and with your skills. In fact, some of this advice can be hurtful if it is misused and misunderstood. As with all kinds of analysis, anything you may hear or read can be understood and misunderstood in many ways that may seem contradictory to you. Gelb Information Systems Corporation, Ivan Gelb and any one found anywhere assume no responsibility for this information’s accuracy, completeness or suitability for any purpose. Anyone attempting to adapt these techniques to their own environments anywhere do so completely at their own risk.

5. © 2008 Gelb Information Systems Corp. - www.gelbis.com 5 Think Faster with Gelb Information Agenda  The z10 News Highlights  zSeries Planning Gotchas  Why Buy One ASAP or Wait? Note:  Your questions are welcome at any time.

6. © 2008 Gelb Information Systems Corp. - www.gelbis.com 6 Think Faster with Gelb Information The z10 News Highlights - 1  Announced February 26, 2008  z10 EC (Enterprise Class) – 2097  1 – 64 processors (CPs)  90 models in four series  Model 400s, 500s and 600s are 1 – 12 CPs  Model 700s are 1 – 64 CPs  217 – 33,000+ MIPS range  Capacity on Demand Shaken & Stirred!

7. © 2008 Gelb Information Systems Corp. - www.gelbis.com 7 Think Faster with Gelb Information The z10 News Highlights - 2   Processor Unit (PU) types: CP / IFL / ICF / zAAP / zIIP ModelMin. Max. Increments E12 1/1/1/0/0 12/12/12/6/6 1/1/1/1/1 E26 1/1/1/0/0 26/26/16/13/13 1/1/1/1/1 E40 1/1/1/0/0 40/40/16/20/20 1/1/1/1/1 E56 1/1/1/0/0 56/56/16/28/28 1/1/1/1/1 E64 1/1/1/0/0 64/64/16/32/32 1/1/1/1/1 Source: IBM’s Specifications

8. © 2008 Gelb Information Systems Corp. - www.gelbis.com 8 Think Faster with Gelb Information The z10 News Highlights - 3  Pricing per MIPS of zSeries around February 2008:  z10 EC (Enterprise Class) – 2097; Announced February 26, 2008; 90 models in 4 speed ranges; 1 – 64 CPs; 217 - 27,048 MIPS Estimated Market Average: < $2,738 - $2,898  z9 BC (Business Class) – 2096; 84 models; 1 – 4 CPs; 24 – 1,776 MIPS New Market Average: < $2,498 Used Market Average: < $998  z9 EC – 2094; 78 models; 1 – 54 CPs; 199 – 18,024 MIPS New Market Average: < $2,498 Used Market Average: < $998  z890 - 2086 New Market Average: < $1,998 Used Market Average: < $498  z990 - 2084 New Market Average: < $1,998 Used Market Average: < $498

9. © 2008 Gelb Information Systems Corp. - www.gelbis.com 9 Think Faster with Gelb Information Z10 Uni-CP Models Source: Cheryl Watson's z/OS CPU Chart - March 2008

10. © 2008 Gelb Information Systems Corp. - www.gelbis.com 10 Think Faster with Gelb Information Z10 Sample 7-Series Models Source: Cheryl Watson's z/OS CPU Chart - March 2008

11. © 2008 Gelb Information Systems Corp. - www.gelbis.com 11 Think Faster with Gelb Information z10 Planning “Gotchas”  Gotchas remain the same for capacity planners 1.Total MIPS / footprint versus Effective MIPS for a customer workloads remain the Capacity Planner’s biggest challenge and opportunity to shine. 2.Effective Internal Throughput Rate (ITR) for your workloads will differ from most examples 3.Difficult to know which examples are most like yours 4.Effective MIPS/CP range is greatest in zSeries history; about 500 minimum to 900 MIPS maximum! 5.One versus multi-footprint decision factors remain the same and a significant opportunity for cost savings 6.IO Subsystems issues remain the same

12. © 2008 Gelb Information Systems Corp. - www.gelbis.com 12 Think Faster with Gelb Information Capacity on Demand  New- Capacity for Planned Events (CPE)  Capacity Upgrades on Demand – CUoD  On / Off Capacity on Demand (CoD)  Backup Upgrades (CBU)  vWLC – Variable Workload license issues remain the same!

13. © 2008 Gelb Information Systems Corp. - www.gelbis.com 13 Think Faster with Gelb Information HiperDispatch = YES / NO  Why? Increase throughput by creation of links between logical unit of work and the physical processors  Logical processors are classified:  Vertical High – dedicated to physical processor  Vertical Medium – get remainders of shares distributed to them  Vertical Low - only serviced when other partitions do not use their entire share  PR/SM  Ties high priority logicals to physicals  Distributes shares to medium and low priority logicals  z/OS ties tasks to subsets of logical processors (LP)  Dispatches work to high priority subsets of LPs  Parks low priority processors that are not needed

14. © 2008 Gelb Information Systems Corp. - www.gelbis.com 14 Think Faster with Gelb Information RMF Processor Activity Report  Two new columns are added to the report:  Parked % - Percent of the time the LP was in a parked state  Logical Processor Share % - Percent of a physical processor share that PR/SM will give to this LP if it can use it  High Priority LPs have 100%  Medium Priority LPs have between 1% and 100%  Low Priority (discretionary) LPs have 0%  MVS Busy Time re-definition:  MVS BUSY TIME % = (Online Time - (Wait Time + Parked Time)) / (Online Time - Parked Time) * 100  See RMF APAR OA24074 for additional details

15. © 2008 Gelb Information Systems Corp. - www.gelbis.com 15 Think Faster with Gelb Information Effective Planning Steps  List ordered from least to most time and cost consuming activities, and highest to lowest risk for error. 1.Obtain and use zPCR published numbers 2.Perform zPCR modeling exercises to establish your performance boundaries and ITRs 3.Perform workload level analytical modeling of your workloads. 4.Measure ITRs of your workloads via benchmarks

16. © 2008 Gelb Information Systems Corp. - www.gelbis.com 16 Think Faster with Gelb Information Why Buy a z10 ASAP or Wait?  Buy a z10 ASAP if:  Require added capacity per mainframe footprint  Bleeding edge shop  Cost justifiable benefits from the higher speeds  Wait or consider z9 or even older if:  Older zSeries provide all the functionality required by the business  Total cost of ownership (TCO) of older models vs. z10 is more than X%, $Y lower (X% and $Y value is very site dependent)

17. © 2008 Gelb Information Systems Corp. - www.gelbis.com 17 Think Faster with Gelb Information Need to Know More  Start at: http://www-03.ibm.com/systems/z/ and http://www- 304.ibm.com/jct03004c/systems/z/hardware/z10e c/  Large Systems Performance Reference: http://www- 304.ibm.com/jct03004c/servers/eserver/zseries/l spr/  zPCR z9 Reference: http://www- 1.ibm.com/support/docview.wss?uid=tss1flash1 0399  Computer Measurement Group (CMG): www.cmg.org www.cmg.org  SHARE: www.share.org

18. © 2008 Gelb Information Systems Corp. - www.gelbis.com 18 Think Faster with Gelb Information Time for…

19. © 2008 Gelb Information Systems Corp. - www.gelbis.com 19 Think Faster with Gelb Information zSeries Family  IBM System z9 Enterprise Class (EC) 2094 – July 2005  Five models up to 54-way  IBM System z9 Business Class (BC) 2096 – April 2006  Two models up to 4-way  IBM System z10 EC 2097 – February 2008  Five models up to 64-way  IBM System z10 BC 209x – September 2008  One model up to 5-way  Over 120 Capacity levels A0x – Z0x (x = 1 – 5 CPUs)

20. © 2008 Gelb Information Systems Corp. - www.gelbis.com 20 Think Faster with Gelb Information zSeries Specialty Processors  Integrated Facility for Linux (IFL)  Internal Coupling Facility (ICF)  System z10 Application Assist Processor (zAAP)  System z10 Integrated Information Processor (zIIP)

21. © 2008 Gelb Information Systems Corp. - www.gelbis.com 21 Think Faster with Gelb Information z/OS v1.10  September 26, 2008: z/OS V1.10 general availability via ServerPac, CBPDO and SystemPac.  November 21, 2008: General availability of Cryptographic Support for z/OS V1R8-R10 & z/OS.e V1R8 Web deliverable. This Web deliverable will support z/OS V1.8 through z/OS V1.10 and z/OS.e V1.8.  September 30, 2009: End of service for z/OS V1.8 (5694- A01) and z/OS.e V1.8 (5655-G52).