Restarting a Storage Cluster

A restart sequences a shutdown and a start. Both legs are driven by the same action, and the leg currently running is held in status.actionStatus.message as either shutdown or start. The action succeeds once the cluster is active again.

Restarting the storage cluster

kubectl patch storagecluster simplyblock-cluster -n simplyblock \
    --type=merge -p '{"spec": {"action": "restart"}}'

Following the leg of a running restart

kubectl get storagecluster simplyblock-cluster -n simplyblock \
    -o jsonpath='{.status.actionStatus.message}{"\n"}'

Every volume of the cluster is offline for the duration of the shutdown leg. To restart the storage nodes one after another instead, so that the cluster keeps serving I/O, see Rolling Restart. How the request is executed, tracked, and cleared is described in Storage Cluster Actions.