From One Zone to Zone-Resilient
Describe the practical changes required to move from a single-zone deployment to a zone-resilient deployment.
How did the support portal change so a single availability-zone outage is less likely to take it down? Nighttime incident desk with one glowing facility lane holding all generic app server, cache, and database shapes while two neighboring lanes are dark and unused, on-call engineer with laptop, clean high-contrast office, no text, words, letters, numerals, logos. Before: the support portal's app servers, cache, and database are all in one availability zone, so a single zone event can stop the whole service. Before: duplicate resources, same zone https://oylytksvdaqzqcpcfhxp.supabase.co/storage/v1/object/public/omie-images/nugget-scenes/a31f054f-6e4d-4dc3-b4e9-7e194b7afcd2-3.png Morning reliability review with app, cache, and database symbols spread across separated facility…
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