Businesses want flexibility in the distribution of workloads without compromising security, reliability or performance. But as they piece together different combinations of services from different clouds, they are building somewhat unwieldy multicloud environments comprised of SaaS or PaaS cloud offerings, or mixes of public IaaS environments.
Whether multicloud is a subset of hybrid cloud or a next phase for your company, successfully migrating to multicloud will require a seamless blend of private and multiple public clouds, as well as a Software Defined Wide Area Network (SD-WAN), to securely and reliably direct traffic to the cloud applications. That will place more demands on your network and present new challenges, such as:
• Visibility and Control over Cloud Services. Provisioning and operations will need to avoid the risks of “shadow IT,” created when procuring SaaS outside the IT organizations and storing data in unsanctioned locations. A cloud view of where and how traffic travels — from cloud to ground or within the cloud — will require analytics and visibility into how cloud services are used, by whom and at what performance level;
• Manage Process and Device Sprawl. As dynamic cloud services move across hosts, distributed management over multisite and multinetwork infrastructure will rein in the chaos that can come with thousands of devices and associated gateways, not to mention increased troubleshooting via patches, updates, and backups;
• Foster Control and Reduce Operational Overhead. Zero-touch provisioning and centralized control, whether in the cloud or on-premise, will ensure no additional skill sets or resources are needed. Cloud resources are provisioned when coordinating between physical and virtualized networks;
• Simplify Licensing and Maintenance. Cloud introduces a per-use licensing model—an improvement over traditional, inflexible software licensing, but still viewed with some trepidation by those who want the predictability of subscription or perpetual license models. Rather than remain mired in expensive, on-premise solutions, the time has come to embrace Cloud Models that cater to elastic business needs by optimizing the cloud through bandwidth pooling. Transitioning to cloud helps eliminate software maintenance issues, as SaaS, IaaS and other subscription models offer more economic and practical ways to accommodate usage and volume fluctuations during peak and off-peak periods;
• Reduce Hardware Burden. Companies often seek cost-effective ways to offer many services to multiple tenants on few hardware appliances. That can be accomplished with multitenanted approaches and virtualization. Multitenanted provides the necessary protection to individual clients, while virtualization provides the flexibility to run on any platform or to provide more than one service on the same platform.
With all of the above challenges, the question about how an existing WAN can evolve to make the move to cloud easier and cheaper — and without a “forklift upgrade” — must be asked.
There are many options. For example, Oracle SD-WAN can be deployed in overlay mode with an existing WAN. Additionally, as businesses move their networks to hybrid or multicloud environments, there is the option for carrier-agnostic SD-WAN, which can be deployed per location as a physical appliance, virtually or directly, in the cloud. Oracle SD-WAN is built with that flexibility in mind.
The bottom line is that all enterprises focused on getting the most out of their networks and apps for greater quality of experience (QoE) will have to embrace multicloud environments that support a broader spectrum of workloads. As businesses piece together different combinations of services from different clouds, they will need centralized management for interconnected networks. The right SD-WAN can help businesses interconnect workloads from multiple cloud environments with the security and performance traditionally expected only in their own data centers.
To learn more, please read our new white paper, “The Right SD-WAN Delivers Risk-Free, Reliable Multicloud Migration,” which can help you choose the right SD-WAN for your business. Also be sure to read our other SD-WAN blogs.