High availability / h
High availability: capacity in Miami (MIA) · H-64
xserv-h-9a603627ed48
Runbook H-64 for High availability in Miami (MIA). Marker xserv-h-9a603627ed48. This page covers capacity for LATAM operators, not a worldwide average.
High availability: Failure modes we actually see
Capacity notes for h-04 assume rainy-season power in Miami and festival peaks toward São Paulo. The failure we actually see is a single uplink, not a cartoon partition of the whole continent. Spare ports and a second provider sit on the same runbook.
High availability: How this letter ties to the rest
Handoff from letter H High availability into the rest of the platform uses the same request IDs as the gateway. Runbook h-05 names who accepts the ticket after São Paulo pages out. Santiago does not silently inherit the incident.
High availability: A note on cost and transit
Rollback for h-06 is a documented command, not a hope. Transit is billed as backup while High availability prefers peering in Santiago. If cost spikes, the runbook cuts overflow to Bogotá before touching customer prefixes.
High availability headers H-09
Headers for h-09 carry the letter, the region (GRU) and a request id. High availability debugging in São Paulo should not require a packet capture in Santiago first.
High availability timeouts H-10
Timeouts on h-10 are tighter than the WAN RTT to Bogotá. High availability in Santiago fails fast and retries once; a third try needs a human because it is no longer a blip.
High availability regions H-11
Region names on h-11 match DNS and tickets: Bogotá / BOG, with Miami as the documented pair. High availability dashboards never say “LATAM” as if it were one RTT.
High availability docs H-12
Public docs for letter H stay aligned with identifier xserv-h-pack. Page h-12 is the High availability slice operators search before the homepage. Edits in Miami show up in São Paulo on the next publish.
- Is transit the default path?
- No. Peering in Miami is default; transit to São Paulo is overflow and is billed that way.
- Does High availability on letter H share fate with other letters?
- The control plane is shared. Data-plane queues for High availability stay isolated, so incident h-01 cannot drain neighbor letters.