#March 18: SJC disappeared (briefly) (13:57UTC)

A firmware bug on a switch upstream of us caused traffic to our sjc servers to be dropped. This was fixed within a few minutes. For a moment, most instances in sjc were unreachable: apps saw connection failures, and some Managed Postgres clusters were knocked into unhealthy states. The upstream issue was resolved immediately, so this was largely a monitoring incident on our end.