Moving From Analog To IP VMS - What Does One Need?

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.

What else?

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