Datastore comes and goes. Returns after several refreshes.
Physical Disk (1TB) appears fine. VMFS Partition appears fine, VM disks appear fine.
2VMs are browseable and files appear correct.
I/O error on startup of VM
Datastore Blocksize appears odd (see below). It was 4MB.
Some smaller files can copy. Larger files unable to complete copy. Cloning does not work to new datastore nor via converter to remote disk.