Have an ESX 4.0.0 175625 host attached to a vCenter server. It has numerous datastores, local disk, iSCSI and NFS. It currently has VM's up and running just fine via the NFS datastore.
I can connect directly to this ESX server and create/remove directories on the NFS datastore via "browse". I can SSH directly into the host and create directories using "mkdir" from /vmfs/volumes/NFS_DATASTORE.
However, when managing the host from vCenter any attempts to create a directory on the NFS datastore fail with "Cannot complete file creation operation." I've tried restarting the hosts services and removing/readding it to vCenter but the error persists.
Anyone run across something like this before?