You can use a regional GCP disk that replicates over all zones in a region (https://cloud.google.com/compute/docs/disks#repds https://cloud.google.com/compute/d

You can use a regional GCP disk that replicates over all zones in a region (https://cloud.google.com/compute/docs/disks#repds https://cloud.google.com/compute/docs/disks#repds). You cannot mount the same disk to many VMs, but you can force mount the disk to a new VM.