Enterprises continue to recognize the benefits of infrastructure as a service, such as increased scalability and the option to access a range of services for big data, serverless computing and more. But an application migration to the public cloud is not a process you want to rush; there are a number of steps an enterprise must take -- both before and after it moves an application off premises.
IT and development teams, for example, have to evaluate how much applications will cost on a public IaaS platform and whether they will continue to meet performance expectations. In some cases, enterprises need to refactor or redesign an application to take advantage of cloud-native features, and in other cases, they might determine that certain compliance requirements or dependencies justify leaving an app in the data center.
And the work doesn't stop there. After an organization decides on an IaaS model, chooses a specific provider and completes an app migration, it still needs to carefully monitor and manage cloud workloads. Fortunately, various tools are available to help teams track costs, monitor performance and enforce security policies.
Use this end-to-end guide to walk through the process of an application migration to IaaS. You'll learn how to decide which applications to move, how to choose a migration approach and how to manage applications once they run in the public cloud.
1Plan and perform an IaaS move-
Perform a successful application migration to cloud
While enterprises might feel pressure to move to a public IaaS model, they first need to step back and assess their applications. From performance to security, every application has a unique set of requirements, and you need to know whether those requirements will be met in the public cloud. Once you determine which apps are the best for IaaS, you need to choose the most appropriate migration approach, such as lift and shift or rearchitecting.
Just because public cloud infrastructure is increasingly popular doesn't mean you should race to get there. Before you make the move, ask these three questions to see if an application will run more efficiently in IaaS. Continue Reading
IT cost reduction is a top priority for enterprises, and public cloud, in many cases, offers that. However, some apps, such as those that make a lot of I/O requests, might end up costing more after a move off premises. Continue Reading
A public cloud migration won't succeed without a detailed, step-by-step plan. To start, assess your current application inventory, determine which apps to migrate first and take note of any dependencies for mission-critical workloads. Continue Reading
Development teams often have to rearchitect an application to ensure it runs efficiently in cloud. Keep these five factors in mind before you make any alterations. Continue Reading
2Manage cloud applications-
Evolve your app management practices for public IaaS
So, you've successfully migrated applications to the public cloud -- now what?
Management and monitoring tools are a must to gain visibility into workflows, optimize application performance and track costs in an IaaS model. Admins can also use these tools to ensure they right-size their cloud computing instances to avoid paying for resources their applications and users don't need. But keep in mind that not all tools are created equal; be sure to weighs the pros and cons of using a native tool from your IaaS provider vs. a third-party option. If you plan to have a multi-cloud deployment, for example, it's generally best to avoid vendor-native tools, as they won't work across different platforms.
Compared to on-premises environments, public cloud, especially at first, can seem difficult to monitor, as the provider dictates how much information is available to users. Learn how to combat this and other challenges with the right set of tools. Continue Reading
A successful cloud management strategy requires application workflow monitoring, as well as tools that fit your unique needs now and in the future -- including for hybrid cloud. Continue Reading
When businesses overprovision cloud resources or choose an incorrect instance size, they can rack up unnecessary costs. Determine the appropriate resources for your cloud applications, and monitor them over time. Continue Reading
The three most popular application models -- service bus, cloud front end and microservices -- all pose unique challenges around integration in public cloud. Continue Reading
Each public IaaS provider has unique APIs, which presents a challenge if you want to run apps in a multi-cloud model. Understand the specific hurdles you'll face and how to ease these multi-cloud woes. Continue Reading
Some enterprises remain wary of the public IaaS model, fearing their resources will be out of their control. But if they choose cloud vendors and app monitoring tools carefully, they'll gain the visibility they crave. Continue Reading
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3Test and secure cloud apps-
Explore options for cloud app security and testing
Security should play a big role in every public cloud strategy. But since some traditional on-premises practices might not translate well to cloud, many enterprises will need to evolve their application security models. Fortunately, there are various tools enterprises can use to manage user identities, set up multi-factor authentication and prevent malicious attacks. Pay special attention to any custom applications that run on an IaaS platform, as they might not respond to some cloud-native security tools. And remember that your security model must extend beyond your applications; APIs are a common target for hackers as well. As always, be sure to regularly test your applications for any vulnerabilities.
Complex cloud apps often require more than traditional security tools. Discover how CASBs can provide a more focused approach around compliance, threat protection and data loss prevention. Continue Reading
Custom applications present unique security and monitoring challenges, particularly as they move off premises. Be sure to build an app with cloud in mind, and take a reliable inventory of where exactly your custom apps run. Continue Reading
4Words to know-
Review common cloud computing and application terms
For a successful migration to a public IaaS model -- and to properly manage workloads after the move -- familiarize yourself with these common terms.