Having recently made a right old mess of my home lab, I set about building it from scratch over the weekend. Having installed some nice, fresh builds of ESXi 5.0 I started adding in my SATA disks and began to create VMFS datastores on the hosts.
The first one worked ok. The second one didn’t for some reason. I got an error part way through the “Add Storage” wizard. The error stack wasn’t too helpful:
Call “HostDatastoreSystem.QueryVmfsDatastoreCreateOptions” for object “datastoreSystem-9” on vCenter Server “svr-vcenter.vspecialist.co.uk” failed.