Broadcast Beat Magazine 2018 NAB Show Edition - Page 107

Analyzing media cloud migration choices By Shailendra Mathur, Vice President of Architecture, Avid The media industry is under- going a dramatic transforma- tion from traditional on-premise infrastructure to cloud tech- nologies. As media organiza- tions make this move, they face multiple infrastructure host- ing choices and porting meth- ods. In order for enterprises to map their current studio-based workflows to the cloud, the dif- ferent hosting choices require the term cloud to be disam- biguated and different porting methods fully understood. Physical and network proxim- ity, multi-tenancy, and service provider assumptions are some of the key differences between the cloud variants. Cloud choic- es may differ based on busi- ness and security needs and the availability of the right technol- ogy within the infrastructure to allow a mapping of in-studio media processes to the cloud. For example, compute-intensive media processes such as trans- coding for distribution stream- ing are ideal for any cloud vari- ant since they require generic compute capabilities available in any cloud infrastructure. As a downstream process in the media production chain, it doesn’t require specialized interconnection with any studio equipment, therefore the physi- cal proximity of studio network and servers is not as critical. On the other hand, a multi-camera and video mixer setup is ideal for locally hosted servers due to local interconnectivity require- ments. Along with infrastructure host- ing choices, there are funda- mentally two options for mov- ing to the shared-resource and elastic model of centralized data centers and cloud. A ‘lift-and- shift’ model ports existing soft- ware services and applications in their original form on virtual machines that mimic bare-met- al servers or workstations - pre- serving decades of legacy tech- nology and intellectual prop- erty used within on-premise infrastructure. Alternatively, a microservices-based approach involves refactoring existing products into more atomic and dynamically composable ser- vices known as microservices. The cloud-native implementa- tion of small microservices pro- vides scalability, cost-efficiency and resiliency ideal for the elas- tic and shared resource model of cloud infrastructures. Cloud deployment options The first step towards a truly shared on-premise infrastruc- ture starts when different departments share infrastruc- ture running in common data centers. Data center-based operations, ubiquitous in the IT industry, and are now becoming commonplace for shared media processing, with the data center operated by the media enter- prise or by a hosted service provider. While bare-metal servers run- ning multi-tenant services are standard in this environment, virtual machines (VMs) can be used with commonly available hypervisors to achieve isolation or on-demand elasticity. Bare- Broadcast Beat Magazine • • 107