The dump engine enables you to recover all the information that you backed up.
Starting with Data ONTAP 8.2, you can restore data to an online mapped LUN. However, host applications cannot access this LUN until the restore operation is complete. After the restore operation is complete, the host cache of the LUN data should be flushed to guarantee coherency with the restored data.
The dump engine can recover the following data:
If you restore a file that has only UNIX file permissions to an NTFS qtree or volume, the file has no Windows NT ACLs. The storage system uses only the UNIX file permissions on this file until you create a Windows NT ACL on it.
Qtree information is used only if a qtree is restored to the root of a volume. Qtree information is not used if a qtree is restored to a lower directory, such as /vs1/vol1/subdir/lowerdir, and it ceases to be a qtree.
If it is restored to a directory, it is restored as a file because it does not contain any valid metadata.
While performing restore operation to such a destination volume, the dump engine ignores these locks.