Last June, research firm Gartner predicted that by 2020, a “nocloud” policy would be as rare as a “no-internet” policy at work, and that shift to cloud technology will impact more than US$1 trillion of IT’s spending over the next five years. As the cloud market continues to blossom and is flooded with variants of “cloud,” cloud vendors busted four common myths of cloud computing.
Myth 1: There are three types of clouds: private, public, and hybrid
Reality: There are two types of clouds: private and public. Hybrid cloud is not truly a type of cloud, but an infrastructure that employs both private cloud and public cloud resources, said Charleston Sin, general manager, VMware Hong Kong and Macau. “Hybrid clouds combine two or more distinct cloud infrastructures that remain unique entities but are bound together by a common set of applications, tools, and services across a multi-cloud environment,” he said.
Myth 2: Multi-cloud is an IT architecture to deliver hybrid IT
Reality: Multi-cloud is a strategy, rather than an architecture. It is a strategy to leverage whatever cloud services and cloud providers that are necessary to deliver hybrid IT, and ultimately what fits a particular business’ requirements, said Asanga Wanigatunga, senior director, cloud group, from Veeam.
A multi-cloud approach ensures risks are mitigated across different providers, provides sound cost control as well as the ability to tap into wider and more varied cloud capabilities to suit all business needs, said Tim Otton, head of cloud platform from Telstra.
“The result is not just a future-proof cloud strategy, but a future-proof IT organization able to cope with different and varied demands.”
Myth 3: Cloud solutions don’t provide the same level of security and control that on-premise data centers deliver
Reality: Some cloud platforms do require separate management tools and skills, and many don’t provide effective security policies to prevent attacks, according to Sin.
“When you implement a secure cloud architecture, you get access control and security policies that are consistent with your on-premise data center. You can easily shift workloads to the public cloud with the peace of mind you deserve.”
Myth 4: All public cloud disaster recovery solutions are created equal
Reality: “While most public cloud-based disaster recovery (DR) solutions address the need for complete failover, many run on proprietary architectures, which can make for a long and laborious recovery. Others require you to maintain a costly active secondary site just for disaster recovery,” said Sin.
A good cloud DR solution should provide simple and affordable protection for all cloud workloads. It should provide a warm, standby DR site where workloads and data are replicated on a continual basis, thereby allowing one to avoid sustained application downtime in the event of a disaster, he added.