NAS [network attached storage] is 'file-level aware' and that's always been valuable. Since unstructured file-based data is consuming more and more capacity, file-based storage, such as NAS, has become a priority in the storage enterprise.
You can actually use the NAS system itself to perform functions on the file data, such as creating logical snapshots. NAS provides a greater understanding of metadata (the data about data), and that has become crucial for compliance and retention tasks. We're also seeing indexing and search features in the NAS environment, and these will be more important as the volume of unstructured data continues to grow. So, being able to search a large repository of file-based data is a valuable asset in NAS.
Check out the entire NAS FAQ guide.