#7 Cloud vs Data Centre
January 9, 2026 · 01:10:08 · Krisztian Fischer & Toby Sears
Show Notes
In this episode, Toby and Krisztian take a hands-on dive into what it actually means to run your own data centre. Drawing on years of real-world experience racking servers, pulling fibre, configuring BGP and managing colocation suites, they walk through physical layout, cooling, power redundancy, network topology, capacity planning and hidden operational costs — then contrast all of this with the cloud. A rare and genuinely technical episode for anyone curious about what happens behind the abstraction layer.
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Chapters
0:00 Introduction
1:27 Our data centre backgrounds
4:09 What does a data centre actually look like?
6:27 Tiers of availability
7:14 Racks, blades and colocation
13:06 Power redundancy: dual circuits and hot-swappable components
15:55 Network: SFPs, fibre optic and bandwidth design
18:59 BGP, ASN numbers and getting on the internet
24:13 Cooling: cold aisles and hot aisles
28:52 The cost breakdown: hardware, power, space, staffing
33:18 Capacity planning: the static nature of physical infrastructure
37:00 Team size and skills required
40:17 Hardware lifecycle and refresh cycles
44:05 How servers are ordered, received and racked
47:11 Should you run your own data centre?
50:10 Edge cases where on-prem makes sense
53:38 Hybrid cloud and AWS Outposts
57:09 Cloud vs data centre total cost of ownership
1:03:01 Environmental impact: waste heat and green data centres
1:07:24 How data centre skills transfer to the cloud
1:08:30 Summary: use the cloud if you can
Technologies Mentioned
AWS - https://aws.amazon.com
AWS Outposts - https://aws.amazon.com/outposts
Kubernetes - https://kubernetes.io
Juniper Networks - https://www.juniper.net