Re: Windows 2008 host unable to format VNX luns in default NTFS format
There are many possibilities that come to mind. Are you using quick format? Perhaps try to format from the server console. Is it possible you are trying to format a LUNZ? Do you have PowerPath on the server? Does the lun you are attempting to format show in PowerPath?
These are just a few things to consider. Perhaps a service request with EMC is needed to review the EMCReports.