We lost a KVM host at around 7:20 UTC.  Because we use local storage for instances there are a number of them that are down.  Toolforge suffered a few losses but it seems to have been few enough that GridEngine and Kubernetes users are unaffected at this time .  The initial task is T187292 (with a list of instances), and an incident report will follow.  We hope to recover all of the instances that are down but it will take time to sort through.