File system attributes are not preserved when restoring NTFS data to an NTFS volume when it is mounted on a ReFS volume
Article ID: 100009404
Updated On:
Resolution
If you want to preserve the file attributes when you restore NTFS data, there are two ways that you can do so.
You can perform a redirected restore of the NTFS data to an NTFS volume that is not mounted on a ReFS volume. When you configure the restore job in the Restore Wizard, select to restore the data to a different location and then select the NTFS volume.
You can also force the restore of the file attributes on the mounted NTFS volume by creating a registry key.
Warning: Incorrect use of the Windows registry editor may prevent the operating system from functioning properly. Great care should be taken when making changes to a Windows registry. Registry modifications should only be carried-out by persons experienced in the use of the registry editor application. It is recommended that a complete backup of the registry and workstation be made prior to making any registry changes.
Create a registry key with the following attributes:
Value Name: AllowUnsupportedFSAttributeRestore
Key Name: HKEY_LOCAL_MACHINE\SOFTWARE\Symantec\Backup Exec For Windows\Backup Exec\Engine\NTFS
Value Type: DWORD
Value: 1
Once you have created the registry key, you can restore NTFS data to an NTFS volume that is mounted on a ReFS volume with the following results:
|
File type
|
Result of restore attempt
|
|
Encrypted file
|
Encrypted files are restored. The restore job is successful.
|
|
File with alternate data stream
|
The alternate data stream is restored.
|
|
File with extended attribute
|
The extended attribute is restored.
|
|
Compressed files
|
Compressed files are restored.
|
|
Disk quotas
|
Disk quotas are not restored. They are skipped silently and the job is considered successful.
|
Note: To disable the registry key once it is created, you can set the value to 0 or you can delete it entirely.
Issue/Introduction
Resilient File System (ReFS) does not support all of the file types that New Technology File System (NTFS) supports, however you can mount an NTFS volume on a ReFS volume on Windows Server 2012 computers. This can result in unpredictable behavior when you try to restore NTFS data to an NTFS volume that is mounted on a ReFS volume.
The following table details the results of trying to restore NTFS data to an NTFS volume when it is mounted on a ReFS volume:
|
File type
|
Result of restore attempt
|
|
Encrypted file
|
Encrypted files are not restored. The restore job fails and the job log notes it with an error.
|
|
File with alternate data stream
|
The alternate data stream is not restored. It is skipped silently and the job is considered successful.
|
|
File with extended attribute
|
The extended attribute is not restored. It is skipped silently and the job is considered successful.
|
|
Compressed files
|
Compressed files are not restored. They are skipped silently and the job is considered successful.
|
|
Disk quotas
|
Disk quotas are not restored. They are skipped silently and the job is considered successful.
|
Additional Information
ETrack: 3145586
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