@olivierlambert Sadly, no. And now that I'm in the middle of upgrading, I can't create storages. I could stand up an NFS server with some shared storage to help. Unfortunately, every attempt at creating a storage (NFS or otherwise) results in NOT_SUPPORTED_DURING_UPGRADE(). If I had created shared storage before I upgraded the master, I could use it. But now that I'm part-way through the upgrade process, I can't.