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Planning for cloud computing

Planning for cloud computing



Cloud computing promises to tackles two hitherto irreconcilable IT challenges: the need to lower costs and the need to boost innovation.

Cloud computing promises to tackles two hitherto irreconcilable IT challenges: the need to lower costs and the need to boost innovation.



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    Planning for cloud computing Planning for cloud computing Document Transcript

    • Planning for Cloud ComputingIntroductionCloud computing promises to tackles two hitherto irreconcilable IT challenges: the need to lowercosts and the need to boost innovation. However, it will take a lot of effort from enterprises toactually make it work. Instead of moving their IT mess for less somewhere else, the ill-preparedwill end up with their IT mess spread across a wider area. This report explains why.Features and benefitsThe report help understand which benefits and risks relate to which type of cloud computingofferingsThe report puts in context cloud cost, security, reliability, availability, scalability, service levelagrements (SLAs) and governance issuesThe report looks at the impact of Cloud computing on IT in general and IT service managementin particular.HighlightsLook to what the cloud can offer and where it might best be applied, rather than being sopreoccupied with its shortcomings that you fail to recognize its value. Avoid the temptation toimpose the full baggage of legacy IT expectations, requirements, and regulations on cloudservices.Cloud computing as a term may have a use-by date, but the technical, operational, andcommercial innovations behind it are here to stay. Cloud computing is a real innovation in thelogic of how IT is sourced and managed and how services are delivered, and its use will growsteadily over the next 12 months.Adoption is a two-way street. It is not just about whether cloud computing is ready for you: it is,more importantly, about whether or not you are ready for it. The fact is that many enterprises arecurrently not ready for private or public clouds or any type of hybrid in between.Your key questions answeredWhy the public cloud market is more complex than expected. How private clouds are catchingup with public cloud capabilities.Why hybrid clouds are the next frontier for the enterprise.Why public cloud pricing structures are evolving, but not always for the betterWhy service-level agreements (SLAs) are key to cloud adoption.Why security is the number-one cloud quality of service (QoS) concern and why reliability andavailability are under increasing scrutiny.Table of Contents :
    • EXECUTIVE SUMMARY1.1 Executive summaryCatalystKey findingsOvum viewCloud computing is a multifaceted phenomenonBenefitsDeployment and management considerations1.2 Report objectives and structureChapter 1 – Executive summaryChapter 2 – Cloud computing will be hybridChapter 3 – Cloud computing costs in perspectiveChapter 4 – Cloud computing QoS in perspectiveChapter 5 – Cloud governance: an overviewChapter 6 – Public clouds require IT service management to adaptCLOUD COMPUTING WILL BE HYBRID2.1 SummaryCatalystOvum viewKey messages2.2 Cloud computing is controversial and importantIt is early days for cloud computingEvolution and disruptionPublic, private, and hybrid clouds2.3 The public cloud market is more complex than expectedInfrastructure-as-a-servicePlatform-as-a-serviceSoftware-as-a-serviceIaaS, PaaS and SaaS interactionsWider perspective2.4 Private clouds are catching up with the public cloud JonesesCloud computing shifts to private cloudsThe shift reflects the maturation of cloud computingNew twists and old trendsTwo roads ahead2.5 Hybrid clouds are the next frontierFrom public to private cloudsA variety of hybridsComplexity lies ahead2.6 RecommendationsRecommendations for enterprisesRecommendations for vendorsCLOUD COMPUTING COSTS IN PERSPECTIVE3.1 SummaryCatalyst
    • Ovum viewKey messages3.2 Enterprises need to scrutinize and adapt to public clouds cost characteristicsPublic clouds have attractive cost characteristicsPublic clouds turn capex into opexPublic clouds cost-attractiveness is not that straightforwardThe transition to public clouds needs to be managed from a cost perspectivePractical considerations trump economics when it comes to public clouds3.3 Public cloud costings evolve, but not always as expected or for the betterEvolution will not result in complete commoditizationFrom upfront license to subscription to PAYG, and backTowards greater price transparency – within limitsPublic cloud price diversification will be limited by IT systems3.4 Private clouds put public cloud costs in contextPrivate cloud: a cost-centric notionPrivate clouds: the larger, the more cost-attractiveCost management is getting more complicated3.5 RecommendationsRecommendations for enterprisesRecommendations for vendorsCLOUD COMPUTING QUALITY OF SERVICE IN PERSPECTIVE4.1 SummaryCatalystOvum viewKey messages4.2 SLAs are key to cloud adoptionEnterprises are adapting to public clouds QoSPublic cloud providers need to manage the gap between QoS hype and SLA realityPublic cloud SLAs will standardize and diversifySLAs are central to the notion of private and hybrid clouds4.3 Security is the number-one cloud QoS concernTrust in public clouds is growing, but security concerns fuel interest in private and hybrid cloudsPublic cloud security needs more workPublic cloud security begins at homeCompliance is more of a concern than securityThe public sector is a key participant in the security and compliance debate4.4 Reliability and availability are under increasing scrutinyReliability and availability are growing public cloud concernsReliability and availability are private and hybrid cloud objectives4.5 Scalability underpins cloud computings elasticityScalability is public clouds number-one featureScalability is a goal for private clouds, too4.6 The road to scalable and reliable private clouds requires new thinking and skillsPublic clouds open up new avenuesPublic and private clouds will converge, within limits4.7 Recommendations
    • Recommendations for enterprisesRecommendations for vendorsCLOUD GOVERNANCE: AN OVERVIEW5.1 SummaryCatalystOvum viewKey messages5.2 Cloud governance builds on IT governanceAn IT governance driver, among othersA shared and service-centric IT driver, among othersAn IT governance federation member, among othersLike IT governance, cloud governance needs to identify the right objective(s)5.3 Cloud governance relies on the same ingredients as IT governanceThe Ps of governancePeople are the main ingredients of cloud governancePolicies, plans, performance monitoring and processes are the backbone of cloud governanceCloud governance relies on paraphernalia in the form of systems, tools and technologies5.4 Cloud governance, like IT governance, is a work in progressGovernance efforts need to improveBest-practice frameworks are missing for cloud5.5 ALM governance needs to expand to the cloudALM has migrated to the cloudsALM and cloud governance should be woven togetherALM governance in the cloud can help weave ALM and ITSM governance togetherALM governance in the cloud must live up to the challenge of cloud-centric applications5.6 Cloud governance builds on SOA governanceCloud computing is SOA-centricCloud governance helps SOA governanceInterfaces are the link between SOA and cloud5.7 RecommendationsRecommendations for enterprisesRecommendations for vendorsPUBLIC CLOUDS REQUIRE IT SERVICE MANAGEMENT TO ADAPT6.1 SummaryCatalystOvum viewKey messages6.2 Public clouds are changing the IT functionThe IT function is dead, long live the IT functionPublic clouds change IT departments6.3 Public clouds are changing the ITSM landscapeSome ITSM issues are traditional, others are newPublic clouds require the same ITIL-espoused ITSM disciplines as internal ITRelationship management becomes criticalFinancial management puts public clouds in contextPeople policies will need to reflect the risk of IT service procurement within the cloud
    • 6.4 ITSM technology has a big role to play in managing public cloudsManaging service availability will be more complex in the cloudService catalogs can be leveraged for cloud provisioningConsider the management of the end-user interface and experience6.5 RecommendationsRecommendations for enterprisesAlternative viewsGLOSSARYGlossaryCloud computingInfrastructure-as-a-serviceMulti-tenant architecturePlatform-as-a-servicePrivate cloudPublic cloudsSoftware-as-a-serviceAPPENDIXFurther readingMethodologyAuthor(s)Ovum consultingDisclaimerFIGURESFigure: The emergence of hybrid cloudsFigure: Not quite a stackFigure: IT governance federates a variety of governance effortsFigure: IT governance underpins IT asset lifecycle managementFigure: The Ps of governanceFigure: Strategic and tactical governanceFigure: IT governance connects strategy with projectsFigure: Impact on the IT organizationFigure: OGC/ITIL service lifecycleFigure: Service costing overviewFor more information, please visit :http://www.aarkstore.com/reports/Planning-for-Cloud-Computing-80167.htmlContact :SanaaAarkstore EnterpriseTel : +912227453309Mobile No: +919272852585Email : contact@aarkstore.com