Issue link: https://cp.revolio.com/i/141720
While public cloud services in particular have exploded in popularity, especially for organizations without the resources to operate their own data centers, a "one size fits all" myth has also emerged, suggesting that this is the most efficient and cost-effective option for all scenarios. In reality, the public cloud may be the sexy new sports car – coveted for its horsepower and handling – but sometimes a hybrid model can be the more sensible approach, burning less gas and still getting you where you need to go. It all depends on what kind of trip you're taking. Or, put in data center terminology, the most effective approach depends on the type of application or workload and is often a combination of infrastructure services – ranging from public, private and "bare metal" cloud to colocation and managed hosting, as well as in-house IT resources. The myth of cloud fuel economy Looking deeper into the myth of "cloud costs," as part of a recent "Data Center Services Landscape" report, Internap recently surveyed 100 IT decision makers to gain a cross-sectional view into their existing current and future use of IT infrastructure. Almost 65 percent of respondents said they are considering public cloud services, and 41 percent reported they are doing so in order to reduce costs. But when you compare the "all-in" costs of operating thousands of servers over several years in a well-run corporate data center or colocating in a multi-tenant data center against the cost of attaining that same capacity on a pay-as-you-go basis via public cloud, the cloud service will lose out nearly every time. The fact that colocation can be more cost-efficient than cloud often comes as a surprise to organizations and is something of a dirty little secret within the IaaS industry. But for predictable workloads and core infrastructure that is "always on," the public cloud is a more expensive option because the customer ultimately pays a premium for pay-as-you-go pricing and scalable capacity that they don't need – similar to driving a gas-guzzling truck even when there's nothing you need to tow. 18 | THE DATA CENTER JOURNAL Balancing the racecar handling of cloud with the safety of a family hybrid This is not to suggest that cloud is without its benefits. Public cloud makes a lot of sense for unpredictable workloads. Enterprises can leverage it to expand capacity on-demand without incurring capital expenditures on new servers. Workloads with variable demand and significant traffic peaks and valleys, such as holiday shopping spikes for online retailers or a software publisher rolling out a new product, are generally well-suited for public clouds because the customer doesn't pay for compute capacity that they don't need or use on a consistent basis. One of the biggest benefits of cloud services is agility. This is where the cloud truly shines, providing accessibility and immediacy to the end-user. However, the need for a hybrid approach also arises here, when agility comes at the expense of security and control. For example, the agility infrastructure to the appropriate business units – a process that can easily take several months. As a result, employees and business units often begin to side-step IT altogether and go straight to public cloud providers, corporate credit card in hand, in an effort to quickly address IT issues. The emergence of popular cloud-based applications made this scenario a common occurrence, and it illustrates perfectly how the promise of agility can end up pulling the business units toward the public cloud – at the risk of corporate security. The CIO is then left scrambling to regain control, with users having bypassed many important processes that the enterprise spent years implementing. Unlike internal data centers or colocation environments, with a public cloud, enterprises have little to no insight into the servers, switches, and storage environment. So while agility is clearly a big win for the cloud, security and control issues can complicate matters. Again, a hybrid, workload-centric approach can make sense. One of the biggest benefits of cloud services is agility. This is where the cloud truly shines, providing accessibility and immediacy to the end-user. However, the need for a hybrid approach also arises here, when agility comes at the expense of security and control. vs. control challenge is often played out in some version of the following use case: A CIO becomes upset when she finds out that employees within most of the company's business units are leveraging public cloud services – without her knowledge. This is especially unsettling, given that she has just spent millions of dollars building two new corporate data centers that were only half full. Something has gone wrong here, and it's related to agility. A major contributing factor to the surprise popularity of public cloud services is the perceived lack of agility of internal IT organizations. For example, it's not uncommon for it to take IT executives quite some time to turn up new servers in corporate data centers. And this isn't necessarily the fault of IT since there are a number of factors that can, and often do, present roadblocks, such as the need to seek budgetary approval, place orders, get various sign-offs, install the servers, and finally release the Use the cloud for workloads that aren't high security, and consider the economics of the workload in the decision, too. Some hybrid cloud solutions even allow enterprises to reap the agility benefits of the cloud in their own data center – essentially an on-premise private cloud. As businesses continue to evolve, it will be critical to go beyond the industry's cloud hype and instead build flexible, centrally-managed architectures that take a workload-centric approach and apply the best infrastructure environment to the job at hand. Enterprises will find such a hybrid solution is usually of greater value than the sum of its individual parts. Carpooling with "cloudy colo" One area that has historically been left out of the hybridization picture is colocation. While organizations can already www.datacenterjournal.com