I'm wondering about what one needs to care for when first deploying IP based systems.
Off the top of my head:
Servers need UPS, cooling, ideally filtered air. Redundancy is a good idea, for power and storage (OS disk) and probably for the application if you need high availability. Backup is a good idea (certainly OS, applications and configuration, probably data/video).
Storage needs good throughput and has similar environmental needs to servers. Redundancy reduces the impacts of failure (moving parts fail most often -- spinning drives, fans).
Network throughput and latency are important, as is security. VLANs are a good idea, separating devices from clients, data and system management.
Monitoring for signs of failure is a good idea (Scom, SNMP). Monitor servers, applications, storage, network, power, HVAC.