Welcome!

Cloud Security Authors: Liz McMillan, Scott Sobhani, Dana Gardner, Peter Galvin, Elizabeth White

Related Topics: @CloudExpo, Microservices Expo, Containers Expo Blog, Agile Computing, @BigDataExpo, SDN Journal

@CloudExpo: Article

Top Three Best Practices for Migrating to the Cloud

Planning your migration strategy

As an Infrastructure-as-a-Service provider, Bluelock sees a lot of migration of applications. Migration is occurring from physical servers to cloud, from private cloud to public cloud and back to private cloud from public cloud.

Migration can be tricky and a poor migration strategy can be responsible for costly time delays, data loss and other roadblocks on your way to successfully modernizing your infrastructure.

While each scenario is different, I'd like to identify three key best practices that will help your team create a solid, successful plan for migrating your application.

Even before you begin to move your application, there's a lot of best practice that goes into choosing which application to migrate to the cloud. Regardless of whether you are migrating that app to a public cloud or a private cloud, you should assess the app for data gravity and connectivity of the application.

Best Practice: Understand the Gravity of Your Data
Data Gravity is a concept first discussed by Dave McCrory in 2010. It's the idea that data has weight and the bigger the data is, the harder it is to move. The bigger the data, the more things are going to stick to it.

McCrory states in his original blog post about Data Gravity, "As data accumulates (builds mass) there is a greater likelihood that additional Services and Applications will be attracted to this data."

McCrory goes on to explain that large data can be virtually impossible to move because of latency and throughput issues that develop upon movement. On his website, datagravity.org, McCrory explains that to increase the portability of an application it should have a lower data gravity.

When moving tier one applications from a physical datacenter to a private or public cloud, we have to take data gravity into account because it will impact the migration.

As you are talking about migrating an application, you can think of the full stack of components as a single VM or a group of VMs that are a vApp (see Figure 1).

Think of a VM with an OS. If we were to migrate that entire VM to the public cloud, we're copying anywhere from 8-20 GB of data with that OS for no reason at all as the cloud you're migrating the app to might already have the OS available to it.

Rather than transferring the data for the OS, whenever possible use metadata instead to describe what OS you want and the configurations using a template or an image on the public or private cloud side. The same metadata concept can be applied to middleware instances too.

What we're left with is our actual data and what the app is. The app is static and static info is easy to move because you can copy it once. There's no need to replicate.

The most difficult part of the migration is the data, however. There's no easy way to shrink down the data, so you need to evaluate the weight of the data in the app you're considering migrating.

Especially if you're a high transaction company, or if it's a high transaction application, as that would be a lot of data to replicate. The data of the app constitutes 99% of the data gravity of the application.

Part of the best practice of understanding the gravity of your application is to understand the ramifications of moving a tier one application with a large amount of data and establish where the best home for that application is.

Another aspect that you should evaluate as part of your pre-migration plan is to determine how connected your VM or vApp is to other apps.

If you have a lot of applications tightly coupled to the application you want to migrate, the cloud might not be an option for that application, or at least only that application.

Best Practice: How Connected Is Your App?
Beyond what applications are connected to the app you want to migrate, the important aspect to evaluate is how coupled the application in question is to other applications, and how tight or loose of a couple they are.

Does your application have data that other applications need to access quickly? If so, a move all or nothing philosophy is your best option.

If you have an application that is tightly coupled to two or three others, you may be able to move them all to the cloud together. Because they are still tightly coupled, you won't experience the latency that would occur if your cloud-hosted application needed to access a physical server to get the data it needs to run.

A step beyond identifying how many apps are tied to the application you wish to migrate, work next to identifying which of those applications will be sensitive to latency problems.

How sensitive it can be should be a consideration of whether you should migrate the app or not.

To be able to check this best practice off your list, be very sure you understand everything your application touches so you won't be surprised later, post-migration.

The final part gets down to the nitty gritty... choosing the correct migration strategy.

Best Practice: Pick Your Migration Strategy.
Your best-fit migration strategy will be a function of the features of the application.

Option one is data migration of just the data. This is typically the correct choice for tier 1 and 2 applications.

Let's say you are able to migrate your VM or vApp. But, it's constantly changing and if it's a tier one application, we may not be able to afford a lot of downtime. Typically, we'll have to invoke some sort of replication.

Replication is an entirely separate subject, but when I think of replication, I think of the size of the data, the rate of change and the bandwidth between our source and target.

Without going into too many details of replication, let's assume you use some sort of SQL or MySQL program for database replication. What you've done is set up your new cloud to have this OS provision. You've got a MySQL provision and the two SQLs are talking to each other and replicating the data.

Option two for migrating your application is machine replication. This is best for tier 1 and tier 2 applications that can afford some downtime. It involves stack migration. There is less configuring in this scenario, but there is more data migrating.

Option two is best if you're moving to an internal private cloud. You will be able to replicate the entire stack because you have plenty of bandwidth to move stuff around.

It's important to note the portability of VMware, because VMware allows you to package the entire VM/vApp, the entire stack, into an OVF. The OVF can then be transported anywhere if you're already on a virtualized physical server.

Option three involves cold P2V migration. You typically see this for tier 2 and 3 apps that are not already virtualized.

The concept involves taking a physical app and virtualizing it. VMware has a VMware converter that does P2V, and it's very easy to go from a physical to a private cloud using P2V. It is, however, an entirely different set of best practices.

In option three, there is no replication. Those apps can also be shipped off to a public cloud provider to run in the public cloud after being virtualized.

A final path some companies take is to treat it as a Disaster Recovery (DR) scenario. Setting up something to basically do replication from one machine to another. Replicate the entire stack from point a to point b, and then click the failover button.

Each application, and migration strategy, is unique, so there is no detailed instruction manual that would work for everyone. The best strategy for some applications may be to stay put, especially if you find that steps one and two of the pre-migration evaluation is closely connected or especially weighty. To truly enjoy the benefits of cloud, you want the right application running that you can leverage to the fullest extent.

When planning your migration strategy, ask for help from those who are familiar with similar use cases and plan and evaluate extensively to save yourself a lot of time, money and headaches that come from rushing into a migration without a strategy.

More Stories By Jake Robinson

Jake Robinson is a Solutions Architect at Bluelock. He is a VCP and former CISSP and a VMware vExpert. Jake’s specialties are in infrastructure automation, virtualization, cloud computing, and security

Comments (0)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


@ThingsExpo Stories
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago. All major researchers estimate there will be tens of billions devices - comp...
Machine Learning helps make complex systems more efficient. By applying advanced Machine Learning techniques such as Cognitive Fingerprinting, wind project operators can utilize these tools to learn from collected data, detect regular patterns, and optimize their own operations. In his session at 18th Cloud Expo, Stuart Gillen, Director of Business Development at SparkCognition, discussed how research has demonstrated the value of Machine Learning in delivering next generation analytics to imp...
There is little doubt that Big Data solutions will have an increasing role in the Enterprise IT mainstream over time. Big Data at Cloud Expo - to be held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA - has announced its Call for Papers is open. Cloud computing is being adopted in one form or another by 94% of enterprises today. Tens of billions of new devices are being connected to The Internet of Things. And Big Data is driving this bus. An exponential increase is...
The 19th International Cloud Expo has announced that its Call for Papers is open. Cloud Expo, to be held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, Big Data, Internet of Things, DevOps, Digital Transformation, Microservices and WebRTC 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 opportuni...
Cloud computing is being adopted in one form or another by 94% of enterprises today. Tens of billions of new devices are being connected to The Internet of Things. And Big Data is driving this bus. An exponential increase is expected in the amount of information being processed, managed, analyzed, and acted upon by enterprise IT. This amazing is not part of some distant future - it is happening today. One report shows a 650% increase in enterprise data by 2020. Other estimates are even higher....
The cloud market growth today is largely in public clouds. While there is a lot of spend in IT departments in virtualization, these aren’t yet translating into a true “cloud” experience within the enterprise. What is stopping the growth of the “private cloud” market? In his general session at 18th Cloud Expo, Nara Rajagopalan, CEO of Accelerite, explored the challenges in deploying, managing, and getting adoption for a private cloud within an enterprise. What are the key differences between wh...
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with the 19th International Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world and ThingsExpo Silicon Valley Call for Papers is now open.
It is one thing to build single industrial IoT applications, but what will it take to build the Smart Cities and truly society changing applications of the future? The technology won’t be the problem, it will be the number of parties that need to work together and be aligned in their motivation to succeed. In his Day 2 Keynote at @ThingsExpo, Henrik Kenani Dahlgren, Portfolio Marketing Manager at Ericsson, discussed how to plan to cooperate, partner, and form lasting all-star teams to change t...
Connected devices and the industrial internet are growing exponentially every year with Cisco expecting 50 billion devices to be in operation by 2020. In this period of growth, location-based insights are becoming invaluable to many businesses as they adopt new connected technologies. Knowing when and where these devices connect from is critical for a number of scenarios in supply chain management, disaster management, emergency response, M2M, location marketing and more. In his session at @Th...
SYS-CON Events announced today that ReadyTalk, a leading provider of online conferencing and webinar services, has been named Vendor Presentation Sponsor at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. ReadyTalk delivers audio and web conferencing services that inspire collaboration and enable the Future of Work for today’s increasingly digital and mobile workforce. By combining intuitive, innovative tec...
Amazon has gradually rolled out parts of its IoT offerings, but these are just the tip of the iceberg. In addition to optimizing their backend AWS offerings, Amazon is laying the ground work to be a major force in IoT - especially in the connected home and office. In his session at @ThingsExpo, Chris Kocher, founder and managing director of Grey Heron, explained how Amazon is extending its reach to become a major force in IoT by building on its dominant cloud IoT platform, its Dash Button strat...
In his keynote at 18th Cloud Expo, Andrew Keys, Co-Founder of ConsenSys Enterprise, provided an overview of the evolution of the Internet and the Database and the future of their combination – the Blockchain. Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life sett...
19th Cloud Expo, taking place November 1-3, 2016, 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 computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterpri...
SYS-CON Events announced today that Bsquare has been named “Silver Sponsor” of SYS-CON's @ThingsExpo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. For more than two decades, Bsquare has helped its customers extract business value from a broad array of physical assets by making them intelligent, connecting them, and using the data they generate to optimize business processes.
There are several IoTs: the Industrial Internet, Consumer Wearables, Wearables and Healthcare, Supply Chains, and the movement toward Smart Grids, Cities, Regions, and Nations. There are competing communications standards every step of the way, a bewildering array of sensors and devices, and an entire world of competing data analytics platforms. To some this appears to be chaos. In this power panel at @ThingsExpo, moderated by Conference Chair Roger Strukhoff, Bradley Holt, Developer Advocate a...
A strange thing is happening along the way to the Internet of Things, namely far too many devices to work with and manage. It has become clear that we'll need much higher efficiency user experiences that can allow us to more easily and scalably work with the thousands of devices that will soon be in each of our lives. Enter the conversational interface revolution, combining bots we can literally talk with, gesture to, and even direct with our thoughts, with embedded artificial intelligence, wh...
Cognitive Computing is becoming the foundation for a new generation of solutions that have the potential to transform business. Unlike traditional approaches to building solutions, a cognitive computing approach allows the data to help determine the way applications are designed. This contrasts with conventional software development that begins with defining logic based on the current way a business operates. In her session at 18th Cloud Expo, Judith S. Hurwitz, President and CEO of Hurwitz & ...
In his general session at 18th Cloud Expo, Lee Atchison, Principal Cloud Architect and Advocate at New Relic, discussed cloud as a ‘better data center’ and how it adds new capacity (faster) and improves application availability (redundancy). The cloud is a ‘Dynamic Tool for Dynamic Apps’ and resource allocation is an integral part of your application architecture, so use only the resources you need and allocate /de-allocate resources on the fly.
industrial company for a multi-year contract initially valued at over $4.0 million. In addition to DataV software, Bsquare will also provide comprehensive systems integration, support and maintenance services. DataV leverages advanced data analytics, predictive reasoning, data-driven diagnostics, and automated orchestration of remediation actions in order to improve asset uptime while reducing service and warranty costs.
Vidyo, Inc., has joined the Alliance for Open Media. The Alliance for Open Media is a non-profit organization working to define and develop media technologies that address the need for an open standard for video compression and delivery over the web. As a member of the Alliance, Vidyo will collaborate with industry leaders in pursuit of an open and royalty-free AOMedia Video codec, AV1. Vidyo’s contributions to the organization will bring to bear its long history of expertise in codec technolo...