In the survey, 43.4% of respondents said their companies would use hybrid cloud deployment models in 2018. Interest in hybrid cloud doesn't exactly come as a surprise. Promises of greater availability, scalability and agility have made public cloud popular, but it comes with tradeoffs that have prevented some organizations from embracing it. In fact, 34.9% of survey respondents said they will continue to use on-premises software and hardware deployment models, compared to 23.4% who will use infrastructure as a service (IaaS) and public cloud.
Sticker shock is a major hurdle to public cloud adoption. Upfront cost quotes from providers aren't always accurate or don't offer the full picture, said Bill Flaherty, a database specialist at a pharmaceutical company. Cloud cost estimators can help evaluate monthly costs, but they often don't account for usage spikes or outages, which can add unanticipated expenses.
"Cloud isn't the panacea for all IT service ills," Flaherty said. "It's a swift kick to the head every time people put systems [in the public cloud], because they aren't sure what they're going to get back as far as costs."
Additionally, certain workloads, such as those with highly customized configurations or mission-critical applications, simply can't -- or shouldn't -- run on public cloud.
In spite of these and other issues, the allure of public cloud remains strong. This has led many organizations to embrace hybrid cloud offerings to extend their on-premises infrastructure to the cloud, said Mark May, an IT infrastructure manager at Great American Insurance Group, based in Cincinnati.
VMware Cloud on AWS is one option to address this IT priority. It enables organizations to run the full VMware software-defined data center stack, which includes vSphere, vSAN and NSX, on AWS. The idea is to provide an organization with a cloud presence identical to its traditional infrastructure, which enables administrators to use all their existing tools and services across private and public clouds and within the physical data center.
Because VMware is responsible for support, operations, maintenance and provisioning, it eliminates the need for organizations to hire additional IT operations staff and frees up infrastructure management resources. VMware Cloud on AWS also provides single-pane-of-glass management, which enables IT to access both VMware and AWS resources without having to interact with Amazon.
"[VMware Cloud on AWS] is an easy path that doesn't require much change in the process," May said.
Still, organizations need to use vSphere 6.5 to take full advantage of VMware Cloud on AWS, which could be a problem for organizations that still use older versions of vSphere and would prefer not to upgrade. This setup also requires IT staff to configure a traditional VMware infrastructure on the AWS cloud, which can be time-consuming.
Source : http://searchservervirtualization.techtarget.com/news/252435305/VMware-SaaS-technology-hybrid-cloud-help-IT-with-2018-plans490