QoS / q
QoS: probes in Santiago (SCL) · Q-02
xserv-q-fc65ff1a179d
Runbook Q-02 for QoS in Santiago (SCL). Marker xserv-q-fc65ff1a179d. This page covers probes for LATAM operators, not a worldwide average.
QoS: How XServ runs it day to day
Probes for QoS (q-02) leave Santiago every 15s toward Bogotá. XServ pages the named owner if loss or RTT crosses the letter budget. A probe never shares a queue with bulk transfers, so a saturated WAN does not hide a dead PoP.
QoS: What operators should measure
Policy for QoS is versioned as q-03. Operators measure error rate, p95 from Bogotá, and time-to-rollback — not a worldwide average. Changes land in Bogotá first, then Miami, with a hold if either region regresses.
QoS: Failure modes we actually see
Capacity notes for q-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.
QoS docs Q-12
Public docs for letter Q stay aligned with identifier xserv-q-pack. Page q-12 is the QoS slice operators search before the homepage. Edits in Miami show up in São Paulo on the next publish.
QoS design Q-01
Design for QoS on letter Q starts in São Paulo (GRU). Runbook q-01 keeps a single owner, a written rollback, and a traffic split that can be reversed without a global freeze. Neighbors in Santiago only take overflow after the local pool fails a health window.
QoS probe Q-02
Probes for QoS (q-02) leave Santiago every 15s toward Bogotá. XServ pages the named owner if loss or RTT crosses the letter budget. A probe never shares a queue with bulk transfers, so a saturated WAN does not hide a dead PoP.
QoS policy Q-03
Policy for QoS is versioned as q-03. Operators measure error rate, p95 from Bogotá, and time-to-rollback — not a worldwide average. Changes land in Bogotá first, then Miami, with a hold if either region regresses.
- Where is QoS measured first?
- From Santiago (SCL) toward Bogotá. A global average is not an SLO for letter Q.
- How fast is rollback for q-03?
- The runbook is a command plus a named owner. There is no wait for a weekly change freeze.