April	  2012	  MANAGEMENT	  BRIEF	                                          Value Proposition for                         ...
Copyright © 2012 by the International Technology Group. All rights reserved. Material, in whole or part, contained in this...
TABLE OF CONTENTS         EXECUTIVE SUMMARY                                                                     1         ...
EXECUTIVE SUMMARYOverviewSAP users face many challenges. They must respond more rapidly and flexibly to changes in volatil...
Significant reductions could be expected in software costs for databases and other products priced         on a per core b...
The cost calculations presented in this report are based on six user installations employing the full range ofSAP applicat...
PureFlex System-specific mechanisms include the following:    •    New technology. PureFlex Systems employ latest-generati...
Power Systems also offer strengths in availability, security and other areas that exceed Windows         and x86 Linux equ...
SAP VIEWChallengesOverviewBy any standard, SAP is a complex system. According to the company, the core modules of Business...
Potential reductions in cycle times and operational complexity have had particular resonance. Cloudinitiatives in SAP envi...
END-­‐TO-­‐END	  SYSTEM	                                                                                                  ...
PureFlex Systems InterfacesStandardized interfaces have been put in place by SAP and IBM for PureFlex Systems in general, ...
TECHNOLOGY VIEWPureFlex SystemsAlthough PureFlex Systems contain many new features, they draw upon the technology strength...
Distinctive TechnologiesDistinctive Power Systems technologies include the following:    •    Logical partitions (LPARs) a...
Figure 5 illustrates this picture.                                                                                        ...
Power Systems are equipped with more than 200 major reliability, availability and serviceability (RAS)features, which are ...
Intel Processor-based Compute NodesIntel processor-based compute nodes are built around latest-generation Intel E5 eight-c...
Storwize V7000 systems compete with EMC VNX midrange and VMAX high-end disk arrays supportedas part of Vblock packages. St...
DETAILED DATAInstallations and ConfigurationsCost comparisons are based on before and after comparisons of servers, disk a...
MANUFACTURING	  COMPANY	  1	                                                                          SAP	  Applications:	...
MANUFACTURING	  COMPANY	  2	                                                      SAP	  Applications:	  ERP,	  BI,	  CRM,	...
Both before and after calculations include servers and arrays duplexed for disaster recovery purposes. Forthis reason, two...
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Value Proposition for IBM PureFlex System Case for IBM PureFlex System for Cloud-Enabled SAP Enterprise Environments


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SAP users face many challenges. They must respond more rapidly and flexibly to changes in volatile,
globalized business environments. They must boost competitiveness and exploit emerging opportunities.
At the same time, economic conditions reinforce pressures to cut or at least contain growth in costs.
The concepts and technologies of “cloud computing” may play an important role in meeting these
challenges. Clouds offer the potential to reduce IT cycle times, more effectively exploit virtualization
technologies and increase operational efficiencies. But adoption rates among SAP users have been

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Value Proposition for IBM PureFlex System Case for IBM PureFlex System for Cloud-Enabled SAP Enterprise Environments

  1. 1. April  2012  MANAGEMENT  BRIEF   Value Proposition for IBM PureFlex System Case for IBM PureFlex System for Cloud-Enabled SAP Enterprise Environments International Technology Group 609 Pacific Avenue, Suite 102 Santa Cruz, California 95060-4406 Telephone: + 831-427-9260 Email: Contact@ITGforInfo.com Website: ITGforInfo.com
  2. 2. Copyright © 2012 by the International Technology Group. All rights reserved. Material, in whole or part, contained in this document may not bereproduced or distributed by any means or in any form, including original, without the prior written permission of the International TechnologyGroup (ITG). Information has been obtained from sources assumed to be reliable and reflects conclusions at the time. This document wasdeveloped with International Business Machines Corporation (IBM) funding. Although the document may utilize publicly available material fromvarious sources, including IBM, it does not necessarily reflect the positions of such sources on the issues addressed in this document. Materialcontained and conclusions presented in this document are subject to change without notice. All warranties as to the accuracy, completeness oradequacy of such material are disclaimed. There shall be no liability for errors, omissions or inadequacies in the material contained in thisdocument or for interpretations thereof. Trademarks included in this document are the property of their respective owners.
  3. 3. TABLE OF CONTENTS EXECUTIVE SUMMARY 1 Overview 1 PureFlex System Value 1 Use Cases 2 Mechanisms 3 Differentiators 4 SAP VIEW 6 Challenges 6 Overview 6 Clouds and Virtualization 6 Solutions 7 SAP NetWeaver Landscape Virtualization Management 7 PureFlex Systems Interfaces 9 TECHNOLOGY VIEW 10 PureFlex Systems 10 Power Compute Nodes 10 Overview 10 Distinctive Technologies 11 Availability 12 Security 13 Intel Processor-based Compute Nodes 14 Storwize V7000 14 Overview 14 Automated Tiering 15 DETAILED DATA 16 Installations and Configurations 16 Personnel Costs 19 Facilities and Energy Costs 19List of Figures 1. Conventional and PureFlex Systems-enabled Cycle Times – Examples 2 2. Cost Reductions Through Use of PureFlex Systems 3 3. Key Capability Areas for SAP NetWeaver Landscape Virtualiztion Management 1.0 8 4. Initial PureFlex Systems Interfaces to SAP Landscape Virtualiztion Management 9 5. Power Systems Technology Integration 12 6. Reported Medium and High Severity Vulnerabilities During 2011 13 7. Intel Processor-based Compute Server – Key Reliability, Availability and Serviceability Features 14 8. Installations Summary 16International Technology Group i
  4. 4. EXECUTIVE SUMMARYOverviewSAP users face many challenges. They must respond more rapidly and flexibly to changes in volatile,globalized business environments. They must boost competitiveness and exploit emerging opportunities.At the same time, economic conditions reinforce pressures to cut or at least contain growth in costs.The concepts and technologies of “cloud computing” may play an important role in meeting thesechallenges. Clouds offer the potential to reduce IT cycle times, more effectively exploit virtualizationtechnologies and increase operational efficiencies. But adoption rates among SAP users have beenconservative.There are good reasons for this. Organizations must deal with complex, interlocking systems andlandscapes that support business-critical systems. Compatibility with SAP architecture and standards mustbe maintained, and diverse application and technology environments must be supported.Two new solutions address these requirements. SAP NetWeaver Landscape Virtualization Management(SAP LVM) addresses higher-level SAP components and processes, while IBM PureFlex System offersindustry-leading capabilities at the infrastructure management level. Although PureFlex Systems are notrestricted to use with LVM, they complement and can be tightly integrated with the LVM stack.PureFlex Systems compete primarily with Vblock solutions offered by the Virtual ComputingEnvironment (VCE) consortium of EMC and its VMware subsidiary, and Cisco Systems. However,PureFlex Systems are better integrated, support a broader range of processors, operating systems andhypervisors and offer more effective system management capabilities.To a greater extent than any competitive offering, PureFlex Systems offer the potential to transform theserver, storage and network infrastructures that support SAP enterprise environments. They also alloworganizations to extend common management services to non-SAP applications.PureFlex System ValueThe value proposition for PureFlex Systems consists of two main components: 1. Operational efficiencies. In six deployment examples presented in this report, use of PureFlex Systems to consolidate older servers, storage systems and networks significantly reduces administrative staffing. Three-year personnel costs average 44 percent less for PureFlex Systems than for existing environments. In the same examples, facilities and energy costs are reduced by even wider margins. Three-year costs for use of PureFlex Systems average 89 and 85 percent less respectively. Combined costs for all installations average 54 percent less. In two cases of UNIX server consolidation, combined costs average 57 and 43 percent less. In x86 server consolidation examples costs average 38 and 40 percent less, and for mixed UNIX and x86 environments costs average 58 and 60 percent less. Calculations assume that organizations fully exploit PureFlex Systems strengths, including the advanced management capabilities of the new IBM Flex System Manager, and that systems are implemented and operated in a best practice manner. Results in other organizations may vary.International Technology Group 1
  5. 5. Significant reductions could be expected in software costs for databases and other products priced on a per core basis. For organizations acquiring licenses independently of SAP, numbers of database server cores are reduced by an average of 63 percent, and application server cores by an average of 70 percent. The extent of savings would depend upon vendor licensing policies. Savings could also be expected in maintenance, network infrastructure and other areas. Hardware as well as software maintenance savings would tend to be highest among organizations migrating from older high-end UNIX servers and disk arrays. 2. Cycle time reductions. Compared to conventional server, storage and network environments, PureFlex Systems enable organizations to significantly reduce the amount of time required for provisioning, installation, configuration and other processes to change or expand infrastructures. Figure 1 shows examples. Conventional   PureFlex   Task   Systems   Systems     Provision  new  server   2-­‐6  hours   5-­‐10  minutes   Provision  storage  for  new  server   3-­‐5  hours   20-­‐25  minutes   Provision  network  capacity   30-­‐60  minutes   N/A   Add  capacity  to  virtual  server   60-­‐90  minutes   1  minute   Install  new  UNIX  OS   6-­‐8  hours   30  minutes   System  set-­‐up   10-­‐20  hours   2-­‐3  hours   Figure 1: Conventional and PureFlex Systems-enabled Cycle Times – Examples Reduced infrastructure cycle times translate into administrator timesavings and greater responsiveness to internal customer needs. They may provide value not only in improving the efficiency of existing environments, but also in replicated and new system deployments. Shorter implementation times and project durations typically yield savings in external services as well as internal costs. Faster cycle times realized by PureFlex Systems facilitate similar gains through use of SAP LVM for system copying, cloning and refreshing for database and application layers; and for workload and capacity management, monitoring and other operational processes. The eventual SAP objectives are to enable a single view of processes and resources across all layers of SAP environments, and to automate management of these from a single point of control. For organizations planning to implement LVM, PureFlex Systems ensure that underlying infrastructures are fully consistent with these objectives.PureFlex Systems offer the broader potential of enabling organizations to expand IT infrastructures in aless disruptive manner. New compute, storage and network resources may be added, and existing resourcesupgraded, without replacing entire servers, storage frames or switches. Self-service extensions willeventually enable SAP Line of Business (LOB) users to handle authorized provisioning directly.Use CasesPureFlex Systems can be deployed in any SAP environment, to support any SAP system and landscape.The platform incorporates key features of IBM Power Systems, System x and BladeCenter, and StorwizeV7000 systems which have been widely employed by SAP users.International Technology Group 2
  6. 6. The cost calculations presented in this report are based on six user installations employing the full range ofSAP applications. Results are based on a set of before and after calculations for each installation. Beforecalculations are for actual user installations. Server and storage bases, and full time equivalent (FTE)administrator staffing levels are based on user-supplied data.After calculations are based on estimates of configurations that would be required if applications andworkloads were transferred to PureFlex Systems.Installations include a large IT services company whose before environment includes more than 300 UNIXand x86 servers from a variety of vendors. The environment includes six different operating systems, eighthypervisors and more than 20 management consoles. PureFlex Systems are employed to consolidate andstandardize these.In three installations in manufacturing, distribution and retailing companies, PureFlex Systems areemployed to replace older HP Integrity Superdome and midrange systems with EMC high-end arrays; IBMSystem p servers and DS8100 arrays; and IBM System i servers and DS4800 arrays respectively.Finally, a second manufacturer and a diversified manufacturing, distribution and IT services companyemploy PureFlex Systems to consolidate SAP landscapes deployed on Windows servers with HP and EMCarrays. The extent of operational efficiency improvements, and of savings resulting from them, variesbetween these installations as shown in figure 2.     PureFlex  Systems  Percent  Less   Installation   Consolidation  Type   Facilities   Energy   Personnel    IT  Services  Company   Mixed  platforms   92%   87%   51%   Manufacturing  Company  1   UNIX  servers   94%   94%   36%   Distribution  Company   UNIX  servers   80%   78%   34%   Retail  Company   Mixed  platforms   66%   59%   60%   Manufacturing  Company  2   x86  servers   80%   71%   30%   Diversified  Company   x86  servers   65%   68%   35%   AVERAGE  FOR  ALL  INSTALLATIONS   89%   85%   44%  Figure 2: Cost Reductions Through Use of PureFlex SystemsFacilities, in this presentation, include data center occupancy as well as maintenance and other operatingcosts for cooling, power distribution and other support equipment.Generally, the highest gains are realized when organizations move from complex, diverse environmentscharacterized by comparatively low levels of capacity utilization, and limited use of virtualization andautomation. Even in installations employing more efficient practices, however, significant cost reductionsare achieved.Detailed installation profiles, along with further information on methodology and assumptions employed,may be found in the Detailed Data section of this report.MechanismsMultiple mechanisms contribute to cycle time and cost savings. These include the effects of consolidationand standardization, which typically reduce costs as well as improving manageability, availability andother operational variables.International Technology Group 3
  7. 7. PureFlex System-specific mechanisms include the following: • New technology. PureFlex Systems employ latest-generation IBM POWER7 and Intel Xeon processor E5s, along with 600 gigabyte (GB) Serial Attached SCSI (SAS) and solid state drives (SSDs) versus the 146 GB or, in one case, 73 GB Fibre Channel (FC) drives in before calculations. Systems also incorporate state-of-the-art space, cooling and energy efficiency features. • Higher virtual machine densities. Many organizations do not exploit the full potential of hypervisors. To realize this, virtualization must be coupled with highly effective management mechanisms to ensure that resources are efficiently used without risks that workloads will exceed available capacity. The capabilities of IBM Flex System Manager contribute materially to operational efficiencies. • Storwize V7000 capabilities. Virtualization and thin provisioning, along with use of storage tiering (IBM Easy Tier) and space-efficient snapshot copying (IBM FlashCopy SE) contribute to higher capacity utilization and lower costs for PureFlex Systems storage. Software enabling all of these is included in the base StorwizeV7000 solution. • Higher administrator productivity. Flex System Manager offers a single management console for physical and virtual Power and Intel processor-based compute nodes, storage and network resources. Streamlined task structures, high levels of automation and a user-friendly graphical user interface (GUI) offering interactive hardware maps further boost administrator productivity. In practice, few organizations would reduce overall numbers of personnel. Savings result from the ability to minimize the amount of time spent on repetitive, low value-added tasks. Personnel are typically reassigned to more substantive roles.A further point should be noted. Although individual capabilities provide value, “the whole is more thanthe sum of the parts.” Organizations that deploy more efficient technology and implement best practicesoften do not address all the variables that affect operational performance and cost structures. PureFlexSystems represent an opportunity to so.DifferentiatorsPureFlex Systems are the latest of what may be characterized as “converged infrastructure solutions,”which package server, storage and network components with combined management suites. Hewlett-Packard initially popularized the concept. The company’s CloudSystem Matrix offerings, however, havenot achieved much traction to date in the SAP world.The VCE consortium has more aggressively targeted the SAP marketplace. The consortium’s Vblockofferings include EMC VMAX and VNX disk arrays, Cisco Unified Computing System (UCS) bladeservers and switches, and VMware software. EMC Ionix Universal Interface Manager (UIM) provides acommon management solution.There are, however, significant differences between Vblock and PureFlex Systems. These include: • Breadth of support. While Vblock supports only x86 servers and VMware, PureFlex Systems also allow use of Power Systems with the IBM AIX and IBM i operating systems, SUSE and Red Hat versions of Linux on Power (LoP), and PowerVM virtualization. Intel processor-based hypervisors supported include VMware, Microsoft Hyper-V and Kernel Virtual Machine (KVM). The ability to incorporate Power Systems should be highlighted. The declining competitiveness of HP’s Integrity platform and of Oracle Sun SPARC-based servers have left IBM Power Systems and AIX as the only real enterprise-class UNIX server option. Many organizations are reluctant to entrust large-scale, availability-sensitive systems to x86 platforms.International Technology Group 4
  8. 8. Power Systems also offer strengths in availability, security and other areas that exceed Windows and x86 Linux equivalents by wide margins. They deliver higher per core SAPS capacity, and PowerVM technologies are significantly more advanced. POWER7 processor-based compute nodes with up to 32 cores may be employed, enabling PureFlex Systems to function as “scale-up” as well as “scale-out” platforms for UNIX server consolidation. As several of the examples presented in this report illustrate, even relatively large conventional UNIX servers may be replaced in this manner. The storage and networking capabilities of PowerFlex Systems are also more inclusive. Storwize V7000 systems can virtualize IBM as well as non-IBM external storage (Vblock supports only EMC), while IBM and third-party network switches may be employed (Vblock supports only Cisco Nexus and MDS). PureFlex Systems will fit more easily into many existing customer environments than Vblock. • System integration. Although marketed as a package, Vblock solutions are still essentially a combination of Cisco UCS blades and VMware with EMC disk arrays. Many of the claims made for Vblock solutions are in practice due to such factors as replacement of old technology with new Cisco and EMC platforms offering better price/performance, more aggressive use of VMware, and gains realized by more effective operational practices. In contrast, PureFlex Systems employ a new hardware design that includes internal storage systems and incorporates latest-generation system packaging, power, cooling, and reliability, availability and serviceability (RAS) technologies. It builds upon IBM’s considerable engineering strengths in these areas. The level of integration offered by Flex System Manager is also greater. While EMC’s UIM acts as an overlay to existing EMC, Cisco and VMware management enablers, Flex System Manager employs a single toolset to manage physical as well as virtual resources. Plug-in modules include VMControl for deployment and management of virtual operating system images, and Storage Control and Network Control for management of storage and network administration tasks. Early experiences with PureFlex Systems also suggest that Flex System Manager offers higher levels of functional integration (fewer steps are required to perform tasks) than UIM. Integration of server and storage administration functions is also more advanced. Automation technologies are clearly more sophisticated than Vblock equivalents, and IBM automated storage tiering software is – by wide margins – simpler to use than that of EMC. Vblock limitations in these areas may account for the fact that operational cost savings do not seem to be much in evidence among its users. One of the consortium’s most-publicized case studies for SAP deployment (Levi Strauss), for example, cites operational cost savings of only “three to four percent.”Broader differences should also be noted. EMC’s leading role in the VCE consortium means that Vblockfunctionality tends to be storage-centric. The IBM approach is more evenly balanced between servers,storage and networks.In addition, while EMC, VMware and Cisco Systems have coordinated support for Vblock systems,customers are still dealing with three different support organizations. In IBM’s case, they are dealing withone. The company’s Foundation Advantage program offers single-level support for all PureFlex Systemscomponents, and a wide range of additional services are available.International Technology Group 5
  9. 9. SAP VIEWChallengesOverviewBy any standard, SAP is a complex system. According to the company, the core modules of Business Suite7 contain more than 285 million lines of code. Additional components and customizations mean that, evenin small installations, it may be necessary to support 500 million to a billion lines of code for productionenvironments alone.Users now deploy solutions that address heterogeneous transactional processes as well as in planning,analysis, reporting and decision-making; interaction with customers, partners and employees through theInternet and intranets; governance, risk management and compliance (GRC); data and processmanagement; and a wide range of industry-specific activities.Challenges are multiplied by the fact that multiple SAP systems (e.g., ERP, CRM, BI) may be deployed,and that for every production instance, there are typically three to five instances for test, development,quality assurance, training, sandbox and other non-production functions. Organizations with exceptionallylarge and/or complex SAP environments may have more.In such environments, processes such as system cloning and copying for projects and QA testing, alongwith everyday operational tasks, have become progressively more exacting. Numbers of IT staff mayincrease, or fewer skilled personnel may be available to meet new business demands.For many users, there is the risk that major migrations and upgrades, as well as deployment of new SAPapplications, may become lengthier, more time-consuming exercises. The ability to conduct applicationinnovation projects, which often require ad hoc creation of numerous short-lived development systems,may be impaired.Business performance may be affected by delays in delivering critical functionality, and by protracteddowntime during transitions. Longer project cycles also translate into higher costs.Stresses extend to underlying system infrastructures. Organizations must deal with larger, more complexand more volatile workloads. The demands of greater business agility mean that infrastructure changesmust occur more rapidly, in a more flexible manner than in the past.At the same time, data volumes routinely expand by 30 to 60 percent per year, causing growth in storagecapacity, and generating ripple effects across large segments of IT infrastructures. More data must becopied, distributed, backed up and – in the event of a serious outage – recovered.SAP’s response to these challenges has been the NetWeaver LVM solution. PureFlex Systems computeand integrated storage nodes allow them to be addressed at the infrastructure level.Clouds and VirtualizationAmong SAP users, interest has grown in two potential, closely related ways of meeting these challenges –cloud computing and virtualization.The appeal of cloud computing has been driven by the same potentials that are recognized across the ITworld as whole: greater speed and flexibility of solution delivery; and reduced costs through improvedstaff productivity, increased infrastructure efficiency and adoption of “payment for service” models.International Technology Group 6
  10. 10. Potential reductions in cycle times and operational complexity have had particular resonance. Cloudinitiatives in SAP environments tend initially to focus on these areas.Virtualization has been widely seen as addressing multiple challenges. Despite more than a decade ofconsolidation initiatives, numbers of servers have continued to expand in many organizations. Low levelsof capacity utilization, high administration overhead, excessive downtime and other effects remaincommon for x86 server farms.VMware has, unsurprisingly, been widely adopted as a means of consolidating servers, increasing speedand flexibility of provisioning, reducing planned downtime through use of VMotion, and achieving otherbenefits. There has also been a trend toward Linux server virtualization using VMware, Xen and, morerecently, KVM hypervisors.The bottom-line results of virtualization initiatives, however, have often been disappointing. Virtualizationof x86 servers has often been a bottom-up process. Integration into broader landscapes and processstructures as well as the creation of management backbones have typically been addressed after the fact.The challenges of creating, distributing and managing virtual images have often increased rather thandecreased complexities. Use of automation tools has been less widespread than should have been the case.New approaches are needed that more effectively integrate and manage virtualized resources in SAPenvironments.The general industry conclusion has been that the challenges of cloud computing and virtualizationmanagement should be met with common solution sets. These are now beginning to reach the marketplace,not least from SAP itself.SolutionsSAP NetWeaver Landscape Virtualization ManagementThe centerpiece of SAP’s response to the challenges and opportunities of cloud computing has been LVM.Beta testing of this solution began in June 2011, and limited deployment began in November as part of aramp up period scheduled to last until May 2012.Although LVM was formally announced by SAP only in 2011, it builds upon earlier SAP solutionsdeveloped for customers through the SAP Value Prototyping organization. LVM also incorporates SAPVirtual Appliance Factory solutions and, according to the company, draws upon SAP experience in morethan 1,700 cloud projects for over 1,000 customers.The objective of LVM is to provide simple, automated management of SAP services by full or partial SAPinstances. The scope of LVM extends across all layers of SAP environments, including SAP applicationsas well as the physical and virtual IT resources that support these.LVM employs the same general structure as SAP Adaptive Computing Controller (ACC) and definesoverall frameworks for visualization and monitoring, operational and capacity management automation,and instance provisioning and relocation. LVM Enterprise extends to post-system copy/refresh processes,which typically run from dozens to hundreds of additional tasks.Key areas of capability as implemented in LVM 1.0 are as shown in figure 3.International Technology Group 7
  11. 11. END-­‐TO-­‐END  SYSTEM   CLONING/COPYING/REFRESHING   OPERATIONAL  AUTOMATION     Automated  creation  of  task  &  training  systems   Start/stop/relocate  systems   Automated  provisioning  of  new  development     Mass  operations  &  scheduling     &  QA  systems     Automation  of  post-­‐copy/refresh  tasks   SAP     SYSTEMS   VISUALIZATION  &  MONITORING   AUTOMATED  CAPACITY  MANAGEMENT   (All  system  &  infrastructure  layers)   Automated  load  balancing  in  response  to   Dashboards,  graphical  landscape  map,     workload  changes   detailed  monitoring,  reporting   THIRD-­‐PARTY  INFRASTRUCTURE   Servers,  storage,  networks   Operating  systems,  virtualization     software  tools  Figure 3: Key Capability Areas for SAP NetWeaver Landscape Virtualiztion Management 1.0LVM complements SAP Solution Manager, enabling end-to-end monitoring of and reporting on keyperformance indicators (KPIs) for business as well as IT processes.Early tests with LVM have shown promising improvements in landscape administration flexibility, as wellas in cost savings. For example, IBM has reported that beta test customers with whom the company hasworked have reduced entire system cloning and copying processes to less than five minutes andapproximately 30 minutes (compared to several hours). Organizations have also been able to install andremove application servers in less than three minutes.According to SAP, future LVM capabilities will include higher levels of automation, more sophisticatedcapacity planning and management tools, and integration of virtual appliances (preconfigured and testedSAP application templates with optimized virtual hardware settings). User self-service, metering andbilling interfaces to financial systems, and single logical views of SAP landscapes mapped to underlyinginfrastructures will be delivered in future releases.More detailed discussion of LVM capabilities would not be appropriate here. Many SAP users are alreadyevaluating this solution and most, if not all, can be expected to do so in the future.Attention, however, should be drawn to a key principle – the extent to which LVM objectives of multi-layer transparency are realized will depend to no small degree on the effectiveness with which third-partyinfrastructure resources are integrated. The speed at which this will occur will also be heavily dependenton investments by infrastructure vendors.In the case of PureFlex Systems, substantial investments have already been made by IBM. The capabilitiesof Flex System Manager are closely synergistic with the application-level functionality provided by LVM.These synergies are reinforced by the interfaces described below.International Technology Group 8
  12. 12. PureFlex Systems InterfacesStandardized interfaces have been put in place by SAP and IBM for PureFlex Systems in general, and FlexSystem Manager in particular, and interoperability has been verified and tested by both companies.Key interfaces for “out of the box” integration with SAP LVM are illustrated in figure 4. These focusinitially on Power Systems and selected IBM disk arrays. SAP  SOLUTION  MANAGER   SAP  LANDSCAPE  VIRTUALIZATION  MANAGER  (LVM)   SAPHostControl   Flex  System     Tivoli  Storage   Manager   DB  library   FlashCopy  Manager   VMControl   OS  library   OS   Storage  library   Space-­‐efficient   copy   copying  &  cloning   SAP  Host  Agent   AIX,  Linux  on  Power   XIV,  Storwize  V7000   SAN  Volume  Controller   IBM  custom  code  Figure 4: Initial PureFlex Systems Interfaces to SAP Landscape Virtualiztion ManagementIBM implementation has occurred at multiple levels. Extensive custom code has been developed by thecompany in cooperation with SAP to implement SAPHostControl for Flex System Manager.SAPHostControl is the principal LVM interface to infrastructure resources. SAP Host Agent support forAIX and Linux on Power has also been put in place.For system copying and cloning, LVM interfaces to IBM Tivoli FlashCopy Manager, an industry-leading,space-efficient snapshot copying tool that is described later in this report.LVM-compliant cloning and copying is supported to Storwize V7000 as well as IBM XIV disk arrays. TheIBM SAN Volume Controller (SVC) cross-platform storage virtualization solution also enables cloningand copying to other IBM and non-IBM storage systems.The contents of Power Systems LPARs – including operating systems, SAP software and othercomponents – may be copied directly to supported platforms using VMControl. Intel processor-basedcompute nodes, and the operating systems and hypervisors on these may also be integrated with LVMthrough Flex System Manager.It should be emphasized that these are initial capabilities. Further expansion of interoperability betweenPureFlex Systems and LVM can be expected.International Technology Group 9
  13. 13. TECHNOLOGY VIEWPureFlex SystemsAlthough PureFlex Systems contain many new features, they draw upon the technology strengths ofplatforms that are established industry leaders in their own right. These include IBM Power Systems andStorwize V7000 disk arrays, which are incorporated in current offerings.It can also be expected that new Intel processor-based compute nodes implementing the latest eX5generation of IBM X-Architecture will be introduced during 2012.X-Architecture is a customized Xeon-based design, currently in its fifth generation, which is optimized forhigh levels of system-wide performance and scalability. The design, based in part upon IBM mainframearchitecture, enables scaling in a manner that maximizes the performance of memory and I/O componentsas well as processors.eX5-based systems are leaders in the high-end x86 server market. The ability to support large memorysizes – up to 6 terabytes (TB) on current eX5 models – has proved popular for densely virtualized anddatabase-intensive environments.Power Compute NodesOverviewIBM Power Systems and their antecedents have been widely deployed to support SAP systems since theearly 1990s.For several years, Power Systems have been the only UNIX server platform to expand its market position.As of yearend 2011, Power Systems had experienced 15 consecutive quarters of growth in UNIX servermarket share, and accounted for more than 50 percent of this market.IBM has maintained a pace of rapid technological advance. Since the mid-2000s, Power Systems havedelivered higher per core performance than any competitive platform in SAP SD and other recent industrybenchmarks.Power Systems demand has been reinforced by capabilities in virtualization, performance optimization andother areas that are described below. The market momentum of this platform has been aided by weakeningUNIX server competition.For example, the HP Integrity platform has been undercut by declining performance competitiveness, aswell as by decisions by Microsoft, Red Hat and – more seriously – Oracle to cease new development forItanium architecture. Older Sun SPARC-based servers have also failed to maintain competitiveness.Among SAP users, few high-end Sun servers remain in place, and replacement of smaller Sun servers hasbecome pervasive.Oracle has promoted its Exadata Database Machine for SAP deployments. Although this platform iscertified by SAP, it has rarely been adopted. The Exadata Database Machine is not well optimized for mostSAP workloads, and has not matched Power Systems performance for comparably sized configurations. Itis unlikely that Oracle SPARC SuperCluster T4-4 systems will fare better, for the same reasons.Power Systems support IBM AIX and IBM i operating systems, along with Power versions of SUSE LinuxEnterprise Server (SLES) and Red Hat Enterprise Linux (RHEL). Organizations often employ AIX forSAP databases, and Linux for application serving.International Technology Group 10
  14. 14. Distinctive TechnologiesDistinctive Power Systems technologies include the following: • Logical partitions (LPARs) and micro-partitions. These are commonly employed for both production and non-production applications, and support some of the largest, most business- critical SAP systems in existence. LPARs and micro-partitions are firmware- and software-based respectively. LPARs may be configured in increments as small as 1/10th of a core, and may be Static (i.e., system resources are dedicated to partitions) or Dynamic (i.e., resources may be shared by partitions according to predefined application priorities). Micro-partitions may be configured in initial increments of 1/10th of a core and subsequent increments as small as 1/100th of a core. In contrast, x86 virtualization tools employ a single software-based partitioning technology. LPARs and micro-partitioning capacities are closely integrated with Power Systems resource sharing and workload management mechanisms, which are among the most sophisticated of any platform available today. • Workload partitions (WPARs). These allow users to create multiple software-based partitions within a single AIX instance. WPARs are typically employed for development, test, quality assurance and other non-production instances; for light-duty production applications; and to upgrade or migrate applications without interrupting service. There are no size limits. • Intelligent multithreading. POWER7 processor-based systems support up to four simultaneous threads, which can boost performance for certain SAP workloads. For example, IBM has reported test results showing that use of four threads can boost performance for Advanced Business Application Programming (ABAP) software stacks by 19 percent compared to the use of two. Workloads can be executed using one, two or four threads per core. The system can automatically determine which to use for optimum performance, or system administrators may select the number of threads employed. In automatic mode, continuous optimization of performance for system-wide as well as partition workloads is provided. • Intelligent cache. The POWER7 cache structure is supported by performance optimization functions. The system may be set to automatically determine appropriate levels of cache for specific workloads, and to modify these as workload mixes change. • Active Memory Expansion. This enables system-managed compression and decompression of data in memory. IBM tests for SAP workloads indicate that de facto memory size may be increased by 75 percent with less than one percent processor overhead, and by 111 percent with around 15 percent processor overhead. Compressed data consumes fewer processor cycles, and may be moved more rapidly. Performance improvements of up to 65 percent may be realized for SAP ERP workloads with the same physical memory size. Hardware costs may be materially reduced • Virtual I/O Server (VIOS). VIOS allows operating system instances running in multiple LPARs to share a common pool of LAN adapters as well as FC, SCSI and RAID devices; i.e., it is not necessary to dedicate adapters to individual partitions.These features are closely integrated, enabling Power Systems to vary a wide range of configurationparameters. These include numbers of threads; use of dedicated or shared processors; cache size, mainmemory and I/O; multiple forms of partitioning; and shared memory and processor pools.International Technology Group 11
  15. 15. Figure 5 illustrates this picture. AIX  7   Intelligent  Threads                        v                              Intelligent  Cache       HYPERVISOR   Shared  Memory  &  Processor  Pools                v            Partition  Capacity  Sharing   Active  Memory  Expansion   LPAR   LPAR   Dedicated   Micro-­‐partitions   Micro-­‐partitions   LPAR   Dedicated   Logical  processors   Logical  processors   LPAR   (thread-­‐based)   (thread-­‐based)       LPAR   WPARs   Shared  Virtual     Shared  Virtual     Processor  Pool   Processor  Pool   Virtual  LAN   VIRTUAL  I/O     VIRTUAL  I/O     SERVER   SERVER  Figure 5: Power Systems Technology IntegrationIn this presentation, Virtual I/O Servers are duplexed to provide redundancy in the event of a componentfailure. This is common practice among Power users supporting business-critical systems.AvailabilityThere is no serious dispute that Power Systems deliver significantly higher availability than anycompetitive platform. Industry surveys have consistently reported that Power Systems experience fewer,shorter outages than Windows, x86 Linux, HP-UX or Solaris servers. This is the case for planned andunplanned outages, as well as for clustered and standalone configurations.International Technology Group 12
  16. 16. Power Systems are equipped with more than 200 major reliability, availability and serviceability (RAS)features, which are implemented across all hardware components and subsystems. AIX and PowerVM alsoincorporate industry-leading technologies that minimize risks of unplanned outages, facilitate recoveryfrom hardware or software failure and reduce the frequency and duration of planned outages.POWER7 processor-based systems and AIX benefit from a number of technology transfers from IBMmainframe systems, which enjoy the highest levels of availability of any major platform. According toIBM, the availability features of POWER7-based systems were developed jointly by the company’s Powerand System z (mainframe) design teams.SecurityPower Systems may deliver significant benefits in this area. Users have found that AIX and PowerVM area less vulnerable to hacking and malware penetration than x86 operating systems and hypervisors.Industry statistics confirm this picture. During 2011, for example, the National Vulnerability Databasemaintained by the U.S. National Institute of Standards and Technology (NIST) reported the numbers ofmedium and high severity vulnerabilities shown in figure 6 for major operating systems and hypervisors. Linux   197   Windows  Server   128   AIX   10   VMware   39   Xen  &  KVM   13   PowerVM   0   Source:  Nadonal  Insdtute  of  Standards  &  Technology   Nadonal  Vulnerability  Database  Figure 6: Reported Medium and High Severity Vulnerabilities During 2011Lower AIX and PowerVM vulnerability histories reflect, to some extent, the fact that these are lesstargeted. However, AIX and PowerVM security mechanisms are also significantly more advanced than forthe latter.These strengths may reduce not only business risk exposure, but also the costs of maintaining effectivesecurity. Additional tools may be required, and more time is typically spent on security administrationtasks in x86 environments.In security as in other areas, IT organizations facing budget pressures are increasingly required to “domore with less.” Use of Power Systems may significantly improve the odds that they will succeed.International Technology Group 13
  17. 17. Intel Processor-based Compute NodesIntel processor-based compute nodes are built around latest-generation Intel E5 eight-core technology,offering up to 80 percent higher performance than Intel Xeon processor 5600 series equivalents, second-generation Turbo Boost Technology and other advanced features. Up to 384 GB or 768 GB RAM may beconfigured using 16 GB or 32 GB dual in-line memory module (DIMMs) respectively.Dual- and four-socket nodes also implement dual embedded VMware ESXi hypervisors with a redundantboot option for high availability. Microsoft Hyper-V, KVM and Xen are also supported.Resiliency features include standard capabilities such as hot-swappable memory cards, disk drives, I/Oadapters, power supplies and fans. There are also a number of distinctive IBM-developed features,summarized in figure 7, that are generally regarded as industry leading. FEATURE   DESCRIPTION   Chipkill  Memory     Creates  duplicate  checksum  copies  of  data  within  memory  subsystem,  disables  inoperative   memory  chips  in  the  event  of  a  failure  (server  remains  online)  &  reinstates  data  copy.  Aids  in   correcting  single-­‐  &  multiple-­‐bit  errors.   Memory  mirroring   Provides  RAID  1-­‐equivalent  function  that  writes  data  to  multiple  memory  cards  &  enables  it  to  be   rebuilt  in  the  event  of  a  failure.  Allows  data  to  be  rebuilt  on  hot-­‐swapped  cards.   Memory  sparing   Enables  contents  of  a  memory  chip  to  be  copied  to  an  alternate  in  the  event  of  a  failure.  The   failed  chip  is  taken  offline,  &  the  alternate  is  activated.   Predictive  Failure   Provides  up  to  48  hours  advance  warning  of  failures.  Enabled  components  include  processors,   Analysis   memory  cards,  disk  drives,  I/O  slots,  power  supplies,  fans  &  voltage  regulator  modules.   Light-­‐Path  Diagnostics   Identifies  component  failures  &  illuminates  LEDs  on  server  panel  indicating  those  require  service.   Components  are  the  same  as  for  Predictive  Failure  Analysis.   Integrated  Management   Provides  remote  monitoring,  troubleshooting  &  power  control.  Enables  Predictive  Failure   Module  (IMM)   Analysis  &  Light-­‐Path  Diagnostics;  sends  alerts  &  status  &  optionally  redirects  console  functions   to  a  remote  PC.  Figure 7: Intel Processor-based Compute Servers – Key Reliability, Availability and Serviceability FeaturesIntel processor-based as well as Power Systems compute nodes offer distinctive advanced energymanagement features. Both support IBM Active Energy Manager software. Intel processor-based computenodes also offer options for use of low energy consumption Intel processors, and both platforms implementIBM technologies such as Calibrated Vectored Cooling (which significantly reduces power consumptionby fans) and energy-efficient power supplies.Storwize V7000OverviewStorwize V7000 is IBM’s principal midrange disk array. Since its introduction in October 2010, it hasenjoyed strong market momentum. As of March 2012,Base software includes IBM Easy Tier, the IBMFlashCopy SE snapshot tool, system management tools and Remote Mirroring for synchronous as well asasynchronous replication.A no-charge offering, IBM Active Cloud Engine allows Easy Tier to be employed to implementInformation Lifecycle Management (ILM) strategies; i.e., data is moved to lower-cost media as it ages andis less frequently accessed. Active Cloud Engine also enables policy-driven organization, searching,retrieval and distribution of files across systems.International Technology Group 14
  18. 18. Storwize V7000 systems compete with EMC VNX midrange and VMAX high-end disk arrays supportedas part of Vblock packages. Storwize V7000 and VNX systems support block as well as file storage.VMAX systems are block-only.A key technical difference is that Storwize V7000 systems can extend virtualization to a wide range ofIBM as well as non-IBM storage systems. This is a capability of SVC, which commonly supportsheterogeneous multivendor storage environments.VNX systems require use of separately charged software tools to provide capabilities included in the baseStorwize V7000 solution. These include EMC RecoverPoint for remote disaster recovery replication;PowerPath multipathing software, which is required for server access; and EMC Fully AutomatedSoftware Tiering, which is discussed below. These may significantly increase overall costs compared toequivalent Storwize V7000 configurations.If VMAX systems are employed, costs will escalate further. VMAX is EMC’s flagship high-end diskarray. Hardware, software and maintenance costs are – by wide margins – higher than for either VNX orPureFlex Systems. There may be some Vblock applications where use of these would be appropriate. Butthe general industry experience has been that latest-generation midrange arrays meet most requirements.Automated TieringTiering – meaning the ability to shift data between multiple tiers of high-performance and slower, higher-capacity drives to optimize performance and reduce media costs – has increasingly become the normamong users of high-end as well as midrange disk arrays.Storwize V7000 systems implement IBM Easy Tier technology, while EMC systems employ thecompany’s Fully Automated Software Tiering (FAST). Both enable use of three-tier configurations ofconventional and solid state drives for overall performance optimization, and provide workload balancingacross tiers in response to changes in “hot spot” patterns or configurations.There are, however, major differences between the IBM and EMC approaches. In principle, FAST enablesoperating parameters to be set more frequently, and with higher granularity than Easy Tier. It is alsodesigned to run continuously, with collection of performance statistics, analysis and data movementprocesses occurring on a 24/7 basis.In practice, however, users have found it difficult to exploit FAST capabilities. Continuous operations tendto generate system overhead that may affect production performance and impair service levels. Equally,few organizations seem prepared to invest the administrator time and effort that would be necessary tomigrate data across tiers multiple times per day, on an application-by-application basis.In comparison, Easy Tier is designed to conduct these processes periodically, as scheduled byadministrators. Data is migrated in small increments every five minutes, reducing production impacts.In contrast to FAST, Easy Tier was designed to minimize complexity – this was, according to IBM,overwhelmingly requested by customers. Administrative processes are simpler, and automation is moreadvanced. Overall administrator workloads thus tend to be less than for FAST environments; i.e., fewerFTEs are required.International Technology Group 15
  19. 19. DETAILED DATAInstallations and ConfigurationsCost comparisons are based on before and after comparisons of servers, disk arrays and FTEadministrators in the six installations summarized in figure 8. IT  SERVICES  COMPANY   SAP  Applications:  Wide  range   BEFORE   AFTER  (PureFlex  Systems)   UNIX  Servers   Chassis  1   2  x  IBM  560Q  8/16  x  POWER5+  1.8  GHz   4/32  x  Power   2  x  HP  rx8620  12/24  x  It2  1.6  GHz     11  x  2/16  x  E5  2600     1  x  HP  rx6600  4/8  x  It2  1.6  GHz   12  nodes     5  x  HP  rx4640  4/8  x  It2  1.6  GHz     22  x  Sun  T,  V  &  X  series   Chassis  2   AIX/LPARs,  HP-­‐UX/nPars,  Solaris   4/32  x  Power   Oracle,  DB2   13  x  2/16  x  E5  2600   UNIX  cores:  128  database  +  140  application  serving     14  nodes       x86  Servers   Power  cores:  40  database  +  24  application  serving   24  x  4-­‐socket   Intel  cores:  112  database  +  272  application  serving     249  x  2-­‐socket   AIX,  Linux  on  Power,  PowerVM     Windows,  Linux,  VMware,  Hyper-­‐V,  Xen     Windows,  Linux,  VMware,  Hyper-­‐V,  Xen     Oracle,  SQL  Server   Oracle,  DB2,  SQL  Server   Intel  cores:  388  database  +  1,454  application  serving       External  Storwize  V7000s   Storage   2  x  72  TB    +  1  x  63  TB  =  207  TB     2  x  EMC  Clariion  CX3-­‐80  53  TB  each     1  x  EMC  Clariion  CX3-­‐60  26  TB     2  x  Sun  6540  20  TB  each     2  x  HP  EVA  6100  16  TB  each     6  x  HP  MSA  1000  2.5  TB  each     9  x  HP  MSA  1000  5  TB  each     Total:  354  TB         FTEs     UNIX  sysadmin:  1.45     x86  sysadmin  6.15         Network  admin:  0.6     VMware  admin:  1.6     Storage  admin:  0.9       SAN  admin:  0.25   FTEs   Total:  10.95   PureFlex  Systems  admin:  4.65  Figure 8: Installations SummaryInternational Technology Group 16
  20. 20. MANUFACTURING  COMPANY  1   SAP  Applications:  ERP,  BW,  HCM,  SCM,  SM,  SRM   BEFORE   AFTER  (PureFlex  Systems)   UNIX  Servers   Chassis  1   2  x  HP  Superdome  64/64  x  It2  1.6  GHz  each   2/16  x  Power,  3  x  2/16  E5  2600   1  x  HP  Superdome  32/32  x  It2  1.6  GHz   4  nodes   8  x  HP  rx8620  16/16  x  It2  1.6  GHz  each     1  x  HP  rx7620  8/8  x  It2  1.6  GHz   Chassis  2   6  x  HP  rx4640  4/4  x  It2  1.6  GHz  each   2/16  x  Power,  4  x  2/16  E5  2600     HP-­‐UX,  nPars,  Oracle   5  nodes     UNIX  cores:  140  database  +  180  application  serving   AIX  +  PowerVM  +  Oracle,  Linux  +  KVM     Storage     Power  cores:  32  database  serving     2  x  EMC  DMX-­‐4  65  TB  &  63  TB  =  128  TB   Intel  cores:  112  application  serving       FTEs   External  Storwize  V7000s   UNIX  sysadmin  2.25     2  x  43  TB  =  86  TB       Storage  admin  0.65   FTEs   Total:  2.9   PureFlex  Systems  admin:  1.7     DISTRIBUTION  COMPANY   SAP  Applications:  ERP,  BW,  PI,  PLM,  Portal,  SM,  SRM   BEFORE   AFTER  (PureFlex  Systems)   UNIX  Servers   Chassis  1   2  x  570  2/8  x  POWER5+  1.9  GHz   2/16  x  Power,  2/12  x  Power     1  x  550Q  4/8  x  POWER5+  1.65  GHz   2  x  internal  V7000  =  36  TB     9  x  550  2/4  x  POWER5+  1.65  GHz   4  nodes   AIX,  LPARs,  DB2     Chassis  2   UNIX  cores:  20  database  +  40  application  serving     2/16  x  Power,  2/12  x  Power       Storage   2  x  internal  Storwize  V7000  =  36  TB   2  x  IBM  DS8100  x  33  TB  =  66  TB   4  nodes       Power  cores:  8  database  +  48  application  serving   FTEs   UNIX  sysadmin:  1.25   AIX,  Linux  on  Power,  PowerVM,  DB2     Storage  admin:  0.4   FTEs   Total:  1.65   PureFlex  Systems  admin:  1.0     RETAIL  COMPANY   SAP  Applications:  ERP,  BW,  CRM,  POS-­‐DM,  Portal,  PI,  SCM   BEFORE   AFTER  (PureFlex  Systems)   Power/i  Servers   Chassis  1   I570  2/16  x  POWER6  4.2  GHz   2/16  x  Power,  3  x  2/16  E5  2600       I550  2/8  x  POWER6  3.5  GHz   1  x  internal  Storwize  V7000  =  21  TB   IBM  i,  LPARs   5  nodes         x86  Servers   Chassis  2   1  x  4-­‐socket,  16  x  2-­‐socket     2/16  x  Power,  3  x  2/16  E5  2600     1  x  internal  V7000  =  21  TB       Intel  cores:  36  database  +  60  application  serving   5  nodes   Windows,  VMware,  SQL  Server     Power  cores:  32  IBM  i     Storage   Intel  cores:  16  database  +  64  application  serving   2  x  IBM  DS4800  x  21  TB  =  42  TB     IBM  i  +  PowerVM;  Windows,  VMware,  SQL  Server   FTEs     IBM  i  sysadmin  0.25     x86  sysadmin  0.6     Storage  admin  0.35   FTEs   Total:  1.2   PureFlex  Systems  admin:  .85  Figure 8 (continued): Installations SummaryInternational Technology Group 17
  21. 21. MANUFACTURING  COMPANY  2   SAP  Applications:  ERP,  BI,  CRM,  ECM,  PLM,  Portal,  SCM,  SM,  SRM,  xApp   BEFORE   AFTER  (PureFlex  Systems)   x86  Servers   Chassis  1   4  x  4-­‐socket,  36  x  2-­‐socket     4  x  2/16  x  E5  2600     72  database  +  86  application  serving  cores   5  nodes   Windows,  VMware,  SQL  Server       Chassis  2   Storage   4  x  2/16  x  E5  2600     2  x  HP  EVA  8100  x  14  TB  =  28  TB   1  x  internal  Storwize  V7000  =  15  TB       5  nodes       54  database  +  74  application  serving  cores     FTEs   x86  sysadmin  1.25       Windows,  VMware,  SQL  Server     Storage  admin  0.35   FTEs   Total  1.6   PureFlex  Systems  admin:  0.95     DIVERSIFIED  COMPANY     SAP  Applications:  ERP,  BI,  PI,  Portal,  SCM,  SM   BEFORE   AFTER  (PureFlex  Systems)   x86  Servers   Chassis  1   2  x  4-­‐socket,  17  x  2-­‐socket     2  x  2/16  x  E5  2600   36  database  +  80  application  serving  cores   1  x  internal  Storwize  V7000  =  10  TB       Windows,  VMware,  SQL  Server   3  nodes       Storage   Chassis  2   2  x  Clariion  CX4-­‐120  x  9  TB  =  18  TB   2  x  2/16  x  E5  2600       1  x  internal  Storwize  V7000  =  10  TB         3  nodes       16  database  +  32  application  serving  cores   FTEs   Windows,  VMware,  SQL  Server   x86  sysadmin  0.75             Storage  admin  0.25   FTEs   Total  1.0   PureFlex  Systems  admin:  0.55    Figure 8 (continued): Installations SummaryIn all calculations, UNIX as well as x86 servers are employed for SAP database and application serving,and include production and non-production systems. Servers employed for file/print serving and otherperipheral functions are not included.In before calculations, x86 servers were installed between yearend 2005 and yearend 2010, and wereequipped with then-current Intel 5000 series (dual-socket) and 7000 series (four-socket) processors.Operating systems and hypervisors employed were as shown in figure 8.Most UNIX servers and disk arrays in before calculations date from the same period. In practice, someorganizations upon which calculations are based also employed newer servers and disk systems. However,it is assumed that aging platforms would be targeted first for replacement.With one exception, before disk arrays were configured as RAID 5 systems employing 146 GB FC orSerial Attached SCSI (SAS) drives. The exception was manufacturing company 1, where EMC DMX-4arrays were configured with 73 GB FC drives in a RAID 0 (i.e., fully mirrored) configuration. RAID 0 wasrecommended by EMC for this platform at the time.Externally attached as well as internal Storwize systems were equipped with 600 GB, 450 GB or 300 GBSAS drives, and 200 GB or 400 GB SSDs in tiered configurations using IBM Easy Tier. Terabytecapacities shown for Storwize V7000 systems allow for use of virtualization.International Technology Group 18
  22. 22. Both before and after calculations include servers and arrays duplexed for disaster recovery purposes. Forthis reason, two chassis are employed for after calculations. This is the case even in installations where asingle chassis would have been sufficient to hold all components.Cost calculations are for operating costs only, and do not include transition and migration costs that wouldbe incurred in replacing existing servers and disk arrays with PureFlex Systems.Personnel CostsPersonnel costs are for numbers of FTEs shown in figure 8, and were calculated based on annual salariesof $87,851 for IBM i administrators; $85,294 for dedicated VMware administrators; $83,564 for UNIXsystem administrators; $80,014 for SAN administrators; $78,433 for storage administrators; $75,908 forWindows and x86 Linux administrators; and $67,410 for network administrators.Salaries were increased by 56.4 percent to allow for benefits, bonuses and related items, and totaled for athree-year period. All values were based on prevailing U.S. levels at the time of writing.An annual average salary of $90,000 was assumed for PureFlex System administrators, again multiplied by56.4 percent and totaled for a three-year period.Facilities and Energy CostsFacilities costs are for servers, disk arrays and related networking equipment in before and PureFlexSystems in after calculations.Facilities costs include data center occupancy and maintenance, depreciation and operational costs forsupport equipment including cooling systems, uninterruptible power supplies (UPS), power distributionsystems (PDS), and facilities management and physical security systems.Occupancy costs were calculated based on numbers of Electronic Industries Alliance (EIA) units,assuming use of standard 42U racks, with allowance for rack space, service clearances, aisles and otherinactive areas. A conservative value of cost per square foot per month for existing facilities was thenapplied to calculate three-year costs. Costs do not include new construction.Energy costs are for the same equipment as in facilities calculations, including support equipment asdefined above. Values for PureFlex Systems were estimated.Energy costs were calculated based on specific utilization levels, including allowance for inactive periods,for each installation over a three-year period. A conservative assumption for average price perkilowatt/hour was employed to determine overall costs.All values for facilities and energy cost calculations are for the United States.International Technology Group 19
  23. 23. ABOUT THE INTERNATIONAL TECHNOLOGY GROUP ITG sharpens your awareness of what’s happening and your competitive edge . . . this could affect your future growth and profit prospectsInternational Technology Group (ITG), established in 1983, is an independent research and managementconsulting firm specializing in information technology (IT) investment strategy, cost/benefit metrics,infrastructure studies, deployment tactics, business alignment and financial analysis.ITG was an early innovator and pioneer in developing total cost of ownership (TCO) and return oninvestment (ROI) processes and methodologies. In 2004, the firm received a Decade of Education Awardfrom the Information Technology Financial Management Association (ITFMA), the leading professionalassociation dedicated to education and advancement of financial management practices in end-user ITorganizations.The firm has undertaken more than 120 major consulting projects, released more than 250 managementreports and white papers and more than 1,800 briefings and presentations to individual clients, usergroups, industry conferences and seminars throughout the world.Client services are designed to provide factual data and reliable documentation to assist in the decision-making process. Information provided establishes the basis for developing tactical and strategic plans.Important developments are analyzed and practical guidance is offered on the most effective ways torespond to changes that may impact complex IT deployment agendas.A broad range of services is offered, furnishing clients with the information necessary to complementtheir internal capabilities and resources. Customized client programs involve various combinations of thefollowing deliverables: Status Reports In-depth studies of important issues Management Briefs Detailed analysis of significant developments Management Briefings Periodic interactive meetings with management Executive Presentations Scheduled strategic presentations for decision-makers Email Communications Timely replies to informational requests Telephone Consultation Immediate response to informational needsClients include a cross section of IT end users in the private and public sectors representing multinationalcorporations, industrial companies, financial institutions, service organizations, educational institutions,federal and state government agencies as well as IT system suppliers, software vendors and service firms.Federal government clients have included agencies within the Department of Defense (e.g., DISA),Department of Transportation (e.g., FAA) and Department of Treasury (e.g., US Mint). International Technology Group 609 Pacific Avenue, Suite 102 Santa Cruz, California 95060-4406 Telephone: + 831-427-9260 Email: Contact@ITGforInfo.com Website: ITGforInfo.com WAL12354-USEN-01