An IT pro's survival guide for multicloud computing
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If they aren't already, most businesses will soon be using public cloud services. The cloud is the perfect model to juggle issues with in-house technical support, agility of IT resources and cost. There are cloud providers that specialize in all of the common business or financial capabilities that could lead to compelling cloud business cases. In fact, that's the problem for many users. Considering their own varied needs and the growing specialization of cloud providers, many organizations are apt to choose more than one service provider and use multiple clouds.
A multicloud strategy lets you align each cloud offering to each need, but this setup also introduces complexity. In a multicloud model, it's easy to lose control and, if you're not careful, miss the whole value proposition. With the right precautions, though, a multicloud strategy offers a number of benefits.
Understanding the multicloud model
When you have the option to run multiple clouds, it is difficult to understand why businesses would think a single cloud could optimally address their IT challenges. After all, each of the three cloud service models -- infrastructure as a service (IaaS), platform as a service (PaaS) and software as a service (SaaS) -- targets a specific business case. IaaS is VM hosting that targets capital cost and geographic presence, but doesn't affect software licensing, technical support costs or business agility. PaaS offers software licensing benefits and reduces platform software support costs, while SaaS turns an application into a service, eliminating almost all of the traditional IT costs.
Because businesses rely on personal productivity tools such as office suites and collaborative software, hosting the central server components of these tools with PaaS can eliminate problems with software updates and synchronizing features across desktop and central platforms. This also reduces the need for IT support, and gives end users better applications.
But the company's core applications need a different kind of support from the cloud. Ideally, you'd have resilient applications that run even if local power is lost, and ones that can expand or contract their capacity depending on workload. For this, you'll want cloud-bursting capabilities, and IaaS offers the most control, security and governance support. It's like an elastic data center.
Some line departments have yet another need. Their workers may require customer management, analytics, data modeling or other specialized functions, delivered anywhere in the world and kept current with regulatory requirements and productivity enhancements. SaaS has become the preferred delivery strategy for this kind of cloud service, and it's particularly valuable in cases where the inertia of internal IT processes is simply too great to let the business keep pace with competition.
When is a multicloud strategy right for me?
So which cloud is best for your company? There is no single choice that will be best, and attempting to settle on a single cloud model will create compromises and minimize benefits. So why not use multiple clouds?
If you believe in the cloud and its future evolution, if your business faces competitive or regulatory pressures, or if your company might be involved in a merger or acquisition, then you are the perfect fit for multiple clouds.
Other factors could also make your company a potential candidate for a multicloud strategy. These would include dependence on multiple hosting platforms in the data center, or widely distributed servers.
Another driver is a loose business-unit structure, which often arises when one company acquires another. Each of the business units from such deals is likely to have its own IT policies and drivers, and may already have its own "ideal" cloud provider. In the long run, though, an organization will need to unite IT applications and services. That means multiple cloud choices must be united as well.
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Tom Nolle asks:
What were the factors behind your decision to deploy a multicloud strategy?
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