The cloud is fundamentally changing the IT landscape. On-demand resources, virtually infinite scalability and capital avoidance are strong drivers that are causing a mass migration of workloads out of the enterprise data center. However, there are good reasons to maintain direct control of some IT infrastructure, thus spawning a hybrid IT architecture that leverages the benefits of each environment. Still, devising a hybrid IT solution has its own challenges.
- Security and regulatory compliance – These are possibly the biggest challenges facing adoption of hybrid IT. Organizations have honed the policies, processes and procedures for protecting the confidentiality, integrity and availability of data over many years. Moving to a cloud or hybrid environment requires new governance methods for the transfer of sensitive data. The more clouds the more security platforms need to be managed.
- Scale – An attractive attribute of cloud is its virtually infinite scalability. To assume that scale is only required in the public cloud is short sighted. On premise resources need to be able to scale as well. That includes network bandwidth, connection points, data center power and space and the resources necessary to securely operate and maintain them.
- Network complexity – Hybrid IT inherently increases network complexity. Connectivity between infrastructure in a data center or colocation facility and resources in the cloud needs to have predictable latency, strong security and flexible capacity. The public Internet is not a suitable connectivity option for many applications, and the complexity increases when you introduce multiple cloud providers. The network location matters, and options can be limited and expensive depending on where the on-premise data center is sited.