Home > Storage > PowerVault > Guides > Dell PowerVault ME5 Series: Microsoft Hyper-V Best Practices > Optimize format disk wait time for large volumes
Formatting an ME5 storage DAS or SAN volume mapped to a Windows host should complete in a few seconds. If long format wait times are experienced for unusually large volumes, temporarily disable the file system Delete Notify attribute on the Windows host by completing the following steps:
fsutil behavior query disabledeletenotify
fsutil behavior set disabledeletenotify NTFS 1
fsutil behavior set disabledeletenotify REFS 1