Broadcast Beat Magazine 2018 NAB Show Edition - Page 108

Essential media cloud deployment options metal and virtualized servers enable a move away from dedicated cabling for ingest and egress processes, with IP-based interconnects playing a larger role. A natural transition from the data center is to an on-premise private cloud hosted in customer- owned data centers. This infrastructure is like the data center model, but now the infrastruc- ture management software changes to a cloud- management software stack, easily maintained by the customer or third-party provider. Dynamic resource allocation becomes much easier since resource allocation and sharing is handled by the cloud vendor’s software. Azure Stack and VMware Cloud Foundation are examples of cloud software that manage on-premise data centers. Next is the off-premise private cloud. As a single- tenant service, it provides security and exclusive use of dedicated resources. Isolation is achieved either virtually through software or, in some cases, physically. An off-premise model can take advantage of co-location centers that provide custom infrastructure hosting facilities and vir- tual, private high-bandwidth connectivity and proximity to cloud data centers. Media enterprise achieve secure connections through accepted networking practices such as point-to-site and site-to-site VPN, or through leased networks that offer predictable latency and high bandwidths. A community cloud run by a service provider shares infrastructure between several organiza- tions with similar concerns such as security, com- 108 • Broadcast Beat Magazine • pliance, jurisdiction, etc. Shared needs can also be around similar infrastructure requirements like secure shared storage and ingest servers or spe- cific products such as remote editing and asset management, and specific security-compliant workflows. Finally, the public cloud is the standard multi- tenant shared infrastructure, offering media orga- nizations infrastructure in multiple regions – a significant cost and scalability advantage over other hosting methods. Virtualization technologies In addition to elasticity to handle heavy load con- ditions posed by say a major news stories or tem- porary production setup, moving post-production processes to the cloud or centralized data centers also provides resource pooling benefits – whether to provision more processes on underutilized servers or to aggregate resources for even more powerful computing power. Using resource par- titioning, it also enables shared access to the CPU, memory, network, storage, and virtual GPU access to simultaneously running services. Virtual machines (VMs) and containers provide critical resource pooling and elasticity. VMs emu- late a full server or workstation by running a full copy of the OS as well as virtualized drivers and hardwar e emulations. In comparison, contain- ers take just enough of the operating system to support binaries and libraries required for appli- cations or services running inside the container. Multiple containers can run in a single OS – pro-