Google Cloud said it is expanding its disaster-recovery testing for full cluster power-loss scenarios, after an extraordinarily painful concatenation of energy issues knocked a single London cloud zone offline, taking down customers like Revolut.
Critically, it also admitted that some customers’ cross-zone failover attempts “were unsuccessful due to [Google Cloud’s] capacity constraints” – with its other unaffected europe-west2 zones overloaded by the consequences of the incident.
