IBM Systems and Technology IBM System StorageThought leadership white paperBlue skies for your cloudwith IBM XIV storage
2 Blue skies for your cloud with IBM XIV storageContents Cloud computing for protected shared 2 Executive summary resources The de nition of cloud computing, which differs across the IT 2 Cloud computing for protected shared resources industry, has been nely tuned by the US National Institute of Standards and Technology as follows: 4 !"#$%&$()*+,-.$/($,0$.12.33.0)$4)$5*+$23*67$.08/+*09.0)(14 Delivering on the promise of cloud computing “Cloud computing is a model for enabling convenient, on-demand network access to a shared pool of con gurable14 About the IBM XIV Storage System series computing resources (e.g., networks, servers, storage,15 For more information applications and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction.” Key cloud objectivesExecutive summary Why a cloud? Organizations have several objectives whenClouds are all the rage these days. Call it hype, but look again. driven to implement a private cloud or purchase cloud services,The bene ts of cloud computing are increasingly proving among them:themselves in deployments in just about every sector. IDC hasfound abundant compelling reasons why organizations areadopting cloud solutions, among them: to improve IT outsourcing IT systems and servicesinfrastructure utilization, boost operational ef ciency anddecrease capital spending.1 access to resources using implementation-ready delivery modelsThis white paper focuses on storage as an essential cornerstoneto a private cloud environment and proposes the key elements IT overheadto successful implementation. It describes the IBM® XIV®Storage System as a highly strategic general purpose storagesolution for private cloud environments, as well as an essentialcomponent of the IBM private cloud portfolio. overhead or costly developmentThis paper also highlights, through documented customercloud stories, how XIV storage lends itself to easy creation of awell-balanced cloud ecosystem and how its proven attributes ofpowerful virtualization, performance, and elasticity, andadvanced features, help in accelerating implementations andmeeting tenant service level goals while minimizing costs.
IBM Systems and Technology 3The bright forecast is “cloud” Seeding the cloud: Storage Storage is a key component in a cloud computing foundation —and not just any storage, but storage capable of integratingcloud.2 With such compelling advantages, small wonder that survey con rmed that after server virtualization, storageallocated to cloud services by 2015.3 In describing virtualization is the technology that plays the most critical roleinfrastructure-related cloud computing, Gartner states, “This in deploying a private cloud.5 Storage plays a role in a completeis a rapidly evolving market that represents the transformation cloud solution by serving speci c purposes:of IT infrastructure over 10 to 20 years.” General purpose storage: Multi-purpose on-line dataIt’s worth pausing for a moment to review the different kinds storage for day-to-day or periodic useof cloud services that are taking shape in this evolving space. Archive and records management: recoverable long-term immutable data retention supportingModels for delivering ready resources compliance and litigationCloud services are typically de ned by a spectrum of delivery Data protection: Data replication, backup and restore formodels—from basic infrastructure to turnkey services. business and data continuityInfrastructure as a Service (IaaS)In the Infrastructure as a Service delivery model, organizationsincluding servers, storage, networking components and otherhardware. The service provider owns, houses, operates andmaintains the infrastructure.Platform as a Service (PaaS)The PaaS model offers a complete environment to develop anddeploy applications, including hardware and software, such asoperating system, hosting services, database services andapplication program interfaces. This model frees up applicationdevelopers from infrastructure management, letting them focuson business logic and con guring applications.Software as a Service (SaaS)In the SaaS model, customers have complete ready-to-useapplication functionality, without application development ormaintenance overhead. The user is unaware of the underlyinghardware and software or its location. SaaS offers the mostlimited.
Blue skies for your cloud with IBM XIV storage IBM System Storage Cloud Services Storage requirements for the cloud cited de nition of cloud computing—namely: Archive and records management service STORAGE CLOUD business continuity Storage Data protection service service billing and chargeback systems Why XIV storage is an excellent ﬁt for cloud environments The IBM XIV Storage System is a high-end general purpose disk storage series with a revolutionary design that is an ideal match with cloud delivery models. Its massively paralleled grid architecture allocates system resources evenly at all times andFigure : Storage serves multiple purposes within a cloud environment. scales performance with capacity, transparently providing the elasticity so critical to cloud infrastructures. The XIV series offers highly affordable storage suitable for providing tier 1 consistent high performance and high reliability at tier 2 costs. The system scales seamlessly without con guration.
IBM Systems and Technology 5 technologies, such as VMware server virtualization solutions and IBM Tivoli® products, XIV storage offers outstanding agility for accommodating growth. The XIV system sets a new standard for ease of use with benchmark enterprise storage manageability, including the automation of most tasks and a highly intuitive user interface that is customer-acclaimed for its simplicity. Effective resource sharing Predictable performance with heterogeneous workloads Storage in the cloud is shared between diverse systems, supporting numerous tenants—each unaware of the others. which the cloud provider must comply—regardless of service level commitments to other tenants. XIV storage provides consistent and predictable performance for heterogeneous workloads that allows the sharing of storage resources without impact across users. The XIV system supports a wide range of simultaneous workload needs, from capacity-hungry to ultra-high performance. These features translate into more effective resource consolidation and reliable scalability. Inherent load balancing of all system resources (such as CPU, cache and disk) gives the XIV system a time.Figure : IBM XIV Gen3 Storage System.
6 Blue skies for your cloud with IBM XIV storageQuality of Service (QoS) Storage architecture for agile virtualizationof resources on demand according to each contracted service don’t take into account the storage that underlies their virtuallevel while preventing the heavy loads of some customers fromaffecting others. in the form of unevenly distributed workloads, performance degradation and compromised reliability.The XIV Quality of Service feature places bandwidth limits on The XIV architecture inherently lends itself to optimizingvolumes don’t starve or degrade performance for others. server-storage environments. Native XIV features, detailed below, bring powerful performance, consolidation andstorage simultaneously supports multiple lines of service, scalability value to the dynamic system environments thatpromoting effective and ef cient managed services for storage. virtualization typically demands.Motionless tiering for RAID-free virtual prioritization Robust XIV storage integration with VMwareWith traditional storage tiering technologies, not only do The XIV Storage System provides best-in-class virtual storage architecture for virtual servers. The combination of its optimalalso demand precious processing power, overhead and time to resource use and hotspot-free server-storage performancephysically move data to the appropriate tier. infrastructure and products. Inherently promoting optimizedThe groundbreaking IBM XIV architecture enables tier 1 server-storage environments, the XIV architecture leveragesstorage performance using commodity disk drives. To manage the range of interoperability features provided by VMware,the priority of speci c data volumes, the XIV system provides delivering the following features for cloud virtualization:“motionless” storage tiering—highly ef cient virtual storageprioritization without the need to copy or move data. Ineffective immediately, obviating the need for nancial outlaysand bulk data movement, and eliminating performance impact. provision storage through a VMware vCenter plug-in, withVirtualization for demanding dynamic environments controlled storage delegationThe cloud computing resource-sharing model uses large poolsbetween servers and storage. IBM XIV storage supportsnumerous hypervisors, including VMware, IBM PowerVM™,certi ed VMware interoperability, XIV storage is the idealstorage-architecture complement to VMware platforms.
IBM Systems and Technology 7In order to balance workloads across multiple storage systems, In PaaS and IaaS cloud models, the cloud provider typicallyadministrators can use VMware Storage vMotion to manually does not have visibility into the speci c usage of the storage ormove virtual disks nondisruptively from one physical XIV business application. Therefore, the provider cannot tuneStorage System to another. or other variables, which can cause suboptimal applicationXIV storage: Proven Hyper-V cloud integration performance.The XIV Storage System is a foundation of IBM’s contribution The autonomic XIV Storage System is always optimally tuned by design; it automatically maintains optimal performance withorganizations accelerate the development and implementation no tuning or management throughout an application’s lifetime,of private clouds. This program provides a proven, end-to-end,virtualization, IBM XIV virtualized storage and other essentialhelp optimize value, to ease deployment as well asprovisioning and management are performed centrally byMicrosoft System Center Virtual Machine Manager(SCVMM).Instantaneous copying for ready-to-use storageTo keep up with dynamic cloud demands, the cloudenvironment needs to enable the provisioning of fullyfunctional virtual machines in a very short timeframe. Thevirtual machine must include the operating system andbusiness applications installed and ready to go. XIV VolumeCopy instantaneously creates a full volume replica. By cloninga template volume previously installed, XIV storage enablesimmediate provisioning of virtual machines and applications.Minimal management to save time and effort Figure : IBM XIV storage provides effortless provisioning with GUI-based volume resizing.In-balance virtualized capacity with no tuning requireda low-touch system that maintains and manages itself while
Blue skies for your cloud with IBM XIV storageRapid storage provisioning and decommissioning The XIV Storage System inherently allocates data “thinly,”Due to its dynamic nature, the cloud environment should using physical capacity only when the data is actually written.enable simple, rapid self-service provisioning and This ensures that space allocation facilitates rather thandecommissioning of virtual servers and their associated storage hinders system elasticity. The XIV system also offers built-in thin provisioning, which cloud providers can leverage to create and provision virtual volumes that are larger than the actualresources are relatively complicated, non-automated and physical storage to ful ll the demands of all cloud users.time-consuming, and performed by trained technicians. Thisapproach often does not keep pace with the dynamic demands, Automatic recon guration that preserves performance and capacity utilization often have negative side effects—reducing performance andThe XIV Storage System can provision and decommission wasting capacity. The XIV grid architecture is designed tostorage almost instantly with no con guration effort, making handle rapidly evolving environments, retaining great performance and using storage capacity ef ciently, and helpingmachines in the cloud, while automatically ensuring optimalstorage array load balancing. With this immediate resourceavailability, organizations can cut their implementation times Cloud product integration for maximum functionality and ef ciency IBM XIV storage is a keystone in the comprehensive private cloud offering by IBM, which includes:investments. HardwareThin allocation for conservative capital outlays IBM Power Systems™:Disk storage supports multiple concurrent cloud consumers. In IBM XIV Storage System series: IBM SAN Volume Controller (SVC): Simpli ed and centralized storage infrastructure managementin storage hardware that will never, in fact, be utilized. In this IBM Scale Out Network Attached Storage (SONAS):case, thin storage allocation can prevent major over-investment managementusage. IBM ProtecTIER®: Data deduplication IBM backup and recovery systems Software IBM PowerVM: IBM Tivoli storage software family: Tivoli Storage Storage Productivity Center and Tivoli Usage and
IBM Systems and Technology 9CIBER creates a next-generation IT infrastructure Elasticity for maximum agilitysolution Scalability in capacity and performanceCIBER Managed Services GmbH built a dynamic cloud to scale dynamically up and down according to user demands.infrastructure for SAP landscapes, based on acombination of IBM server, storage, database and system organizations continually add data while purging very little.management software. The new storage infrastructure, On the chance that one tenant frees up capacity, it will, mostwhich consists of the IBM XIV Storage System and IBM likely, be swallowed up by other demand for more storage. InSAN Volume Controller (SVC), offers individual service most cases, when more capacity is needed, scaling up byclasses to suit different customer needs, maximizing deploying additional hardware on the storage network is only!"#$%&!(%)*#+,-#(-.*%(/*0(01(2*#3"#(4#45*67#*89:*application landscapes run on both IBM Power Systems recon guring it to make the capacity usable.servers and IBM System x® blade server technologies.See case study. enabling the nondisruptive addition of storage modules into!"#"$%& the system grid. Newly added capacity is not only immediately;* * <)&.*&!*"$!=/#*+%4&#$*%(/*0!$#*>#3<)#*%(/*4-%)%<)#* 9 and fully usable, the system automatically redistributes data SAP hosting services to businesses, with 99.9 percent among all modules to optimize utilization. VMware-based virtualization and improved service level agreements Performance that scales along with capacity;* *0"$!=#/*<@4(#44*-!(&(@&.*%(/*727#$*%=%)%<)&.* ? Capacity elasticity alone is not suf cient to satisfy cloud even across two locations, using IBM SVC storage virtualization and the IBM XIV Storage System consistent I/O performance as capacity grows or shrinks; if not,;* * #/@-#/*B!$C)!%/*+!$*?6*4&%++*&7$!@27*40"),#/*4#&@"* A cloud customers will not receive their contracted service and administration of the XIV Storage System;* * #/@-#/*!"#$%&(2*-!4&4*B&7*0"$!=#/*4#$=-#*D@%)&.* A supported by three levels of storage service classes, an integrated and virtualized storage architecture, and new server hardware;* * #/@-#/*&0#*+!$*"$!=4!((2*%(/*/#")!.0#(&*!+*(#B* A 4.4*+$!0*B##C4*&!*7!@$4*B&7*&7#*(#B*4&!$%2#* solution
10 Blue skies for your cloud with IBM XIV storageSince every XIV module contains the computing power and Technische Universität München enables cloud-necessary cache to support its capacity, the system maintains its ready SAP businesshigh and consistent performance as it scales up. The XIVStorage System is scalable in all key elements, including disk The University implemented a fully cloud-enabledcapacity, interfaces, cache and CPU power, enabling system infrastructure based on the IBM Power Systems platformperformance to grow proportionally with capacity. &7%&*%@&!0%*0%(.*%/0(4&$%&!(*&%4C4*%(/*2$#%&).* accelerates preparation for the new semester. TheThis dependable scalability in resources makes the IBM XIV =$&@%)1%&!(*4!)@&!(*%))!B4*+!$*%*+%4&*%(/*>#3<)#*system low-risk storage for meeting service commitments. deployment of new SAP systems and software on IBM POWER7® and Intel processor-based systems accessingSteadfast performance during virtual machine growth IBM XIV Storage System. See case study.In virtualized cloud environments, as the number of virtualmachines per host increases, storage access increases. In !"#"$%&conventional storage solutions, an increase in storage access TU München can provision a new server in 30 minutes (atypically results in degraded system performance. 90 percent reduction) and provision a new SAP instance in less than half a day. Data was migrated to the XIVThe XIV Storage System is fully and automatically distributed, storage systems, resulting in balanced performance andwith random I/O optimized, advanced caching algorithms and -%"%-&.*@&)1%&!(*%4*B#))*%4*40"),#/*0%(%2#0#(&5*optimal I/O levels. The system architecture dramatically The University replaced 150 Sun servers with two IBMreduces random seek times—offering granular and ef cient Power® servers and two IBM BladeCenter® systems,caching that results in powerful performance at all times. -@&&(2*EF*+@))*$%-C4*&!*+!@$*7%)+G$%-C4H*%*4%=(24*!+*IJ* "#$-#(&H*%(/*-@&*#(#$2.*@4%2#*<.*%$!@(/*IK*"#$-#(&5* Migration to IBM DB2® resulted in a database size of 63 GB, a 40 percent reduction.
IBM Systems and Technology 11 App App App App App App App App App App App App OS OS OS OS OS OS OS OS OS OS OS OS CPU Overload! X V V V V V V V V V V App M App M App M App M App M App M App M App M App M App M OS D OS D OS D OS D OS D OS D OS D OS D OS D OS D K K K K K K K K K K Datastore 1 1Figure : IBM XIV storage accommodates peak demand through optimized distribution.Hotspot-free load balancing Centralized multi-system managementThe XIV Storage System is inherently load balanced at alltimes, actively distributing data and processing evenly across all support this level of scalability, XIV storage provides central management for multiple systems. The ability to centrallytuning. manage local or geographically distributed XIV systems and group systems by geography or other parameters promotes and disaster recovery sites.
12 Blue skies for your cloud with IBM XIV storageData protection and business continuity To help ensure system availability during routine maintenance and hardware failures, the XIV Storage System provides:infrastructure are always available, with no service disruption. hardware and software maintenance performed whileand days to return to contractual performance levels following applications are runninga hardware or disk failure. data redundancy—without human intervention—for rapidThe XIV cloud solution minimizes downtime and promotes recovery with minimal performance impactrapid return to operations—perhaps the fastest in its class—which dramatically reduces impact on ongoing operations and failurepromotes contract compliance, helping avert major risk in the Data protection and recovery to ensure business continuityrebuild, performance impact is negligible because all XIV disks Since protecting data from loss and corruption is aparticipate in the rebuild simultaneously, effectivelydistributing the processing throughout the system. infrastructures must include snapshots, mirroring and backups, as well as rapid recovery.Continuous availability and nondisruptive upgrades and maintenanceUnplanned outages can typically impact a larger population of The XIV system is designed for business continuity,tenants in cloud environments than in traditional eliminating unplanned downtime and accelerating return toinfrastructures. Planned cloud downtime also presents major operations from disasters large and small. Incorporatingproblems since it is nearly impossible to coordinate with many hardware, software and data considerations, the XIVunrelated tenants that have different system needs. Therefore, architecture delivers:highly available storage systems must support self-healing, hotupgrades and on-line maintenance. snapshots with service level agreement granularity that strikes the right balance between remote data preservation and minimal impact on ongoing system latency results and minimizing risk in a range of disaster scenarios
IBM Systems and Technology 13Getronics launches new pay-per-use cloud service Flexible reporting, billing and chargeback featuresmodel More than a technology shift, cloud computing is about a new technology-enabled business model. Instead of purchasing andGetronics’ new Utility Hosting service is built on a maintaining IT resources, organizations pay a fee for thedynamic infrastructure that employs IBM Integrated necessary computing services. The most signi cant economicService Management solutions for provisioning and bene t of this model is the “pay-for-what-you-use” approach,storage management to help staff rapidly switch on and in which large investments in hardware and software, and theoff cloud environments and proactively increase capacity major infrastructure maintenance effort, are replaced withas needed. See case study. dynamic payment for resources actually used. Storage resource usage is usually measured by the amount of data stored on theL#(#,&4M cloud and transferred to and from the cloud. In some cases,;* * (%<)#/*&7#*-!0"%(.*&!*)%@(-7*%*(#B*"%.G"#$G@4#* N other usage parameters, such as bandwidth consumed may be service model that differentiates it from other hosting billable as well. Typically, cloud providers use a monthly providers utilities-like billing model. Storage must be able to track the;* * #/@-#/*0%(%2#0#(&*-!4&4*"#$*4#$=#$*"#$*.#%$*<.* A cloud-based usage of each customer, providing all the necessary (#%$).*IK*"#$-#(&* information to the billing system.;* * #/@-#/*&0#*&!*0%$C#&*+!$*(#B*4#$=-#4*+$!0*%4*)!(2* A %4*+!@$*B##C4*&!*O@4&*%*+#B*7!@$4 easily available for chargeback and billing purposes. Since the no need to install management services to collect the data, as easily with resource utilization software, such as IBM Tivoli
Blue skies for your cloud with IBM XIV storage The cloud-proven success of general purpose XIV storage across a variety of industries makes IBM XIV storage an essential element of an IT cloud infrastructure. Its transformational virtualized design, powerful architecture and integration with virtualized environments are ideal for any evidenced by XIV success stories, even though the XIV series is positioned for the private cloud space, many customers are leveraging XIV storage for their public clouds as well. minimizes storage management overhead, creates an agile, future-driven environment and can ensure continuous business operations, helping the organization achieve its cloud objectives and drive organizational vision and ef ciencies.Figure : IBM XIV storage provides GUI-based capacity reporting for About the IBM XIV Storage System seriespay-for-what-you-use billing. The IBM XIV Storage System is a proven, high-end disk storage series designed by listening to customers andConclusion: Delivering on the promise of addressing their storage challenges across the broadestcloud computing spectrum of business applications. The XIV series offers highlyCloud computing is a strategic solution for driving cost savings affordable storage suitable for even the most demanding workloads, providing tier 1 consistent high performance andand accelerating implementations. IBM is a clear leader in high reliability, at tier 2 costs. Never compromisingcloud services, ranking as a “cloud champion” by a performance for reliability, the XIV grid architecture appliesSurvey.6 IBM XIV storage, a robust component of the IBM massive parallelism to allocate system resources evenly at allenvironments, integrating IBM server and storage products,and value-added software such as Tivoli storage management industry leader in enterprise storage manageability, the XIV system sets a new standard for ease of use by automating mostrely on IBM cloud solutions. tasks and providing an amazingly intuitive user interface. Its grid architecture enables performance to grow with capacity and integrates seamlessly with cloud technologies for even greater agility in accommodating growth.
IBM Systems and Technology 15The XIV Storage System has met with rapid market For more informationacceptance and success, with thousands of installations in To learn more about the IBM XIV Storage System, pleasediverse industries worldwide, including nancial services, contact your IBM sales representative or IBM Businesshealthcare, energy, education and manufacturing. The XIV Partner, or visit ibm.com/storage/disk/xivseries supports a wide range of workload needs, from capacity-hungry to ultra-high performance. It integrates easily withvirtualization, email, database, analytics and data protection can enable effective cash management, protection from technology obsolescence, improved total cost of ownership andseries plays a key role in IBM’s end-to-end dynamic help address environmental concerns with new, more energy-infrastructure solutions, integrating seamlessly with IBM ibm.com/40,02/0-Storwize® V7000 and Tivoli products. Customers also bene tservice.The IBM XIV Storage System series offers several models, allbased on the same proven XIV architecture and the samesimple, cost-effective pricing approach of all functionality