It´s a good practice to increase NTFS performace to remove the feature configured by default in Windows 2000, Windows 2003 and Windows XP operating systems, that maintains for every file on the system the date and time of the last operation performed over the file.
Because the quality of the storage impacts directly in the performace of Hyper-V environment it is also a best practice for Hyper-V to remove that audit functionality in Hyper-V parent and guest partitions. But be careful, some applications could depends of that functionality, so you have to assess the applications running into the server to be sure that there are no dependencies.
The way to remove the audit feature is just to modify the registry as following:
You have to create a new REG_DWORD key named NTFSDisableLastAccessUpdate inside the registry path HKLM\System\CurrentControlSet\Control\FileSystem\
In Windows Vista and Windows Server 2008 this feature is unset by default.
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