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Migrate Data from Legacy to Cloud | @CloudExpo #BigData #IoT #M2M #API #Microservices

Although there are many existing data migration tools, they have their limitations

Why It's Difficult to Migrate Data from Legacy to the Cloud

As virtualized and cloud systems are so prevalent and integral to data storage, the need to migrate data from a legacy storage system to a virtual or cloud-based one is inevitable. But, here's the rub: migrating data is a lot harder than you might think, despite all the marketing noise about smooth transitions, ease-of-use, and turnkey solutions.

While the term ‘cloud' means many things to many people, I believe it refers to a large-scale virtualized data center that has numerous clusters of VMware or other hypervisor host servers connected to a SAN storage farm with petabytes of data.

The environment may be part of a data center of an enterprise-class company (private cloud), or part of a shared data center managed by a Cloud provider (public cloud).

Popular Reasons to Migrate Data

  • Storage Refresh. An existing storage system has reached the end of its useful life, or its lease is about to expire. Tens or hundreds of terabytes need to be moved from the old to the new storage.
  • Physical-to-Virtual Conversion. The original transformation from a legacy to a virtual environment may have simply involved mapping existing storage Logical Unit Numbers (LUNs). However, keeping the original physical data in the original place negates the many benefits of virtual storage. A second phase of virtualization would involve migrating the raw/direct mapped storage into VMDK disk files stored in the datastore of the virtual environment (VMFS volumes).
  • Storage Consolidation. Moving data from one storage system to another to consolidate storage space.
  • Performance Tuning. This involves moving data from one storage system to another in order to balance the distribution of active data onto separate storage spindles or controllers.

Limitations of Native Data Migration Tools
Although there are many existing data migration tools, they have their limitations. Some of these don't  require any downtime. However, there can be a significant performance impact on virtual machines where a large amount of data is migrated. Problems can arise if the destination storage is on a different SAN or a remote data center - which makes it unsuitable for a data center move.

For a large-scale migration project under a tight deadline where essentially every datastore is moved from old storage to new, the product must invoke the maximum number of sessions to move as much data as possible in order to meet the deadline.

The massive copying process places such a load on the virtual environment that the performance of the VMs may be compromised, and therefore it is often necessary to allocate application downtime in order to avoid issues.

Due to these limitations, data migration is no longer an easy exercise of copying data from A to B, even for a simple Storage Refresh project. To work around such limitations demands a more complex, multi-phase project plan. Even then, only a small number of migrations can be performed at a time due to the limits of 8 or 4 accesses.

This means the project may stretch out for weeks or months!

For a more complex project, such as a migration from legacy, physical application server clusters to a cloud/virtual environment, native tools are unable to address the source disks (physical LUNs) presented to physical application servers on the SAN.

In this case, not only does the migration tool have to be able to read/access the source LUNs across different host server platforms (Linux, Windows, UNIX, and so on), but the tool must be able to write to the new virtual storage. Lacking such a tool, the migration process may need to be a two-phase approach. First, with a P-to-P copy, resulting in an RDM in the virtual environment, followed by a P-to-V process at the end, making the migration process even more complicated.

Is There a Better Way?
An ideal solution is a migration process that can directly intercept the source storage (preferably live and without any downtime), and then online copy the source data into the virtual environment as VMDK files (or RDM if so desired).

This will result in minimum downtime (needed only after migration is complete and cutting over production to the virtual environment), and in the lowest possible impact to the virtual environment (as all the copying is performed by the migration appliance at the source).

In Brief...
Migrating data storage from legacy systems to cloud-based ones is far more difficult than you might think. While there are many tools to help you achieve this goal, few come without serious negatives - notably protracted downtime, and a slew of technical difficulties, and a hefty price tag.

Shop around. There a few solutions that enable smooth migration with minimal downtime and minimal impact to the virtual environment - at a price that is highly affordable and can be rented. Bear in mind that the cost associated with downtime can range from $90K to millions of dollars per hour depending on the organization.

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The World's Largest Cloud Computing Event, November 3-5 at the Santa Clara Convention Center!

Cloud computing budgets worldwide are reaching into the hundreds of billions of dollars, and no organization can survive long without some sort of cloud migration strategy. Each month brings new announcements, use cases, and success stories.

Cloud Expo offers the world's most comprehensive selection of technical and strategic Industry Keynotes, General Sessions, Breakout Sessions, and signature Power Panels. The exhibition floor features 100+ exhibitors offering specific solutions and comprehensive strategies.

The floor also features a Demo Theater that give delegates the opportunity to get even closer to the technology they want to see and the people who offer it.

Attend Cloud Expo. Create your own custom experience. Learn the latest from the world's best technologists. Talk to the vendors you are considering, and put them to the test.

Cloud Expo 2015 Silicon Valley
(November 3-5, 2015, Santa Clara Convention Center, CA)

Cloud Expo 2016 New York
(June 7-9, 2016, Javits Center, Manhattan)


Photo: Cloud Expo Silicon Valley, November 2014

Speaking Proposals Open
The 17th International Cloud Expo has announced that its Call for Papers is open. 17th International Cloud Expo, to be held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, Big Data, Internet of Things, DevOps, Containers and Microservices to one location.

With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding business opportunity. Submit your speaking proposal today!

Submit Your Call for Papers ▸ Here

Sponsorship Opportunities Open
17th International Cloud Expo, taking place Nov 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud Expo is the single show where delegates and technology vendors can meet to experience and discuss the entire world of the cloud. Learn what is going on, contribute to the discussions, and ensure that your enterprise is as "Cloud-Ready" as it can be! Sponsors of Cloud Expo will benefit from unmatched branding, profile building and lead generation opportunities through:

Sponsor Cloud Expo ▸ Here
Download Show Prospectus ▸ Here

Opening Keynote at 16th Cloud Expo | Sandy Carter, IBM General Manager Cloud Ecosystem
In her Opening Keynote at 16th Cloud Expo, Sandy Carter, IBM General Manager Cloud Ecosystem and Developers, and a Social Business Evangelist, discussed why this matters, how innovation will benefit, and how to foster an interest in tech.

Cisco Keynote: The Internet of Everything: Seizing the Opportunities
In her keynote at @ThingsExpo, Manjula Talreja, VP of Cisco Consulting Services, discussed IoE and the enormous opportunities it provides to public and private firms alike. She also shared what businesses must do to thrive in the IoE economy, citing examples from several industry sectors.

Microservices & IoT Power Panel
In this Power Panel at @DevOpsSummit, moderated by Jason Bloomberg, president of Intellyx, panelists Roberto Medrano, Executive Vice President at Akana; Lori MacVittie, Evangelist for F5 Networks; and Troy Topnik, ActiveState's Technical Product Manager; and Otis Gospodnetić, founder of Sematext; peeled away the buzz and discuss the important architectural principles behind implementing IoT solutions for the enterprise. As remote IoT devices and sensors become increasingly intelligent, they become part of our distributed cloud environment, and we must architect and code accordingly. At the very least, you'll have no problem filling in your buzzword bingo cards.

SYS-CON.tv Interviews By Conference Chair Roger Strukhoff
Roberto Medrano of Akana ▸ Video
Brendan O'Brien of Aria Systems Video
Otis Gospodnetic of Sematext ▸ Video
Dalibor Siroky of Plutora ▸ Video
Charles Kendrick of Isomorphic ▸ Video
Reuven Harrison of Tufin ▸ Video

Containers & Microservices Expo To Be Colocated with Cloud Expo Silicon Valley, November 3-5, 2015 at the Santa Clara Convention Center, CA
SYS-CON Events announced on June 9, 2015 at the Javits Center that the 2nd "Containers & Microservices Conference" will take place November 3-5, 2015, at the Santa Clara Convention Center, Santa Clara, CA, and the "Third Containers & Microservices Conference" will take place June 7-9, 2016, at Javits Center in New York City.

Containers and microservices have become topics of intense interest throughout the cloud developer and enterprise IT communities.

Microservices focuses on the business and technology of the software architecture design pattern, in which complex applications are composed of small, independent processes communicating with each other using language-agnostic APIs.

Containers are not being considered for the first time by the cloud community, but a current era of re-consideration has pushed them to the top of the cloud agenda.

Rather than just stuff an OS into a container, for example, developers and deployers should consider a spectrum of microservices and what they can do.

New York and Silicon Valley Sponsors and Exhibitors
During our last New York and Silicon Valley events, over 12,000 (audited) delegates registered and participated in the world's largest DevOpsContainers, and Microservices show, colocated with Cloud Expo. Our conference delegates met with over 150 of the world's leading technology pioneers that were among the sponsors and exhibitors, including:

Acision, Actifio, ActiveState, AgilePoint, AIC , Akana, AlertLogic, Ambernet, Amplidata, Apacer Memory America Inc., Appcore, AppDynamics, AppZero, Aria Systems, Arista Networks, Automic, Avere Systems, Axis Communications, B2CLOUD, Basic6, Bestwebdesignagencies.com, Bitium, Blue Box , BMC, BroadSoft, Brother , Bsquare, BUMI, CA, Inc., Calm.io, CenturyLink, Ciqada, CiRBA, Cisco, Cloudant, an IBM Company, Cloudian, CoalFire, CodeFutures, COLUMN Technologies, CommVault, connect2.me, Connected Data, CrashPlan/Code42, Creative Business Solutions , Cynny Italia S.r.l, Dasher, dcVAST, DEAC, Dell, DevOps.com, Distrix , DragonGlass, Dyn, Edgecast , ElasticBox, Emcien, Endstream Communications/Open Data Centers, EnterpriseDB, e-SignLive, by Silanis, Esri, Evident.io, FierceDevOps, FireHost, Genband, Gigamon, GoodData, Gridstore, Harbinger Group , IAPP, IBM, IDenticard Access Control, Imperva,


Cloud Expo Demo Theater (June 9-11, 2015, Javits Center) on the Expo Floor attracts more delegates than the entire conference of other events

IndependenceIT, Infor, InMage, Innodisk, Intelligent Systems, Isomorhpic , ITinvolve, iwNetworks, Ixia, iXsystems , Jelastic, Kintone, KOTRA , Liaison, Litmus Automation, MangoApps, Matrix.org, MediaTek Labs, MetraTech (now part of Ericsson), Microsoft, Navisite, Net Access , Nimble Storage, NuoDB, Inc., Objectivity, OMG, Open Data Centers, OpenCrowd, Optimal Design, Oracle, OutSystems, Parasoft, Peak10, Peer 1 Hosting, PluralSight, Plutora, ProfitBricks, PubNub, Quality Technology Services , Quantum, Qubell, RackWare , Rancher Labs, Red Hat, r-evolutionapp , RingStor, Robomq.io, SafeLogic, SAP, ScaleMP, Seagate, Secure Infrastructure & Services, Sematext , SendGrid , Serena Software, Sherweb, SimpleECM, Site 24x7, Smartvue Corporation, SOASTA, SoftLayer, an IBM Company, SoftwareAG, Soha, Solgenia, SPAN Systems, Spirent, StackIQ, Stateless Networks, Storpool, Stratogent, Stratoscale, Supermicro, SUSE, Tau Institute, Telecity, Telehouse, Telestax, The New York Times , The Vision Times, TierPoint, TMCnet, Transparent Cloud Computing Consortium, Tufin, Ulunsoft, Utimaco, VASCO Data Security, Veeam, Verizon Enterprise Solutions, Vicom Computer Services, VictorOps, Virtustream, VITRIA Technology, Vormetric, WHOA.com, Will Jaya, Windstream, WSM - Website Movers International, Zentera Systems, Zerto.


Cloud Expo New York (June 9-11, 2015) and Silicon Valley (November 3-5, 2015) "Bronze Sponsor" AlertLogic Booth at the Javits Center

About SYS-CON Media & Events
SYS-CON Media (www.sys-con.com) has since 1994 been connecting technology companies and customers through a comprehensive content stream - featuring over forty focused subject areas, from Cloud Computing to Web Security - interwoven with market-leading full-scale conferences produced by SYS-CON Events. The company's internationally recognized brands include among others Cloud Expo® (@CloudExpo), Big Data Expo® (@BigDataExpo), DevOps Summit(@DevOpsSummit), @ThingsExpo® (@ThingsExpo), Containers Expo (@ContainersExpo) and Microservices Expo (@MicroservicesE).

Cloud Expo®, Big Data Expo® and @ThingsExpo® are registered trademarks of Cloud Expo, Inc., a SYS-CON Events company.

More Stories By Wayne Lam

Wayne Lam is CEO of Cirrus Data, a provider of software that migrates data to the cloud and manages storage area networks (SANs). With more than 25 years of experience in the enterprise storage industry, he co-founded FalconStor Software and founded several other tech companies.

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