Check out the entire NAS FAQ guide.
This was first published in July 2008
Is NAS a better storage option for SMBs than a SAN or a mixed solution?
Absolutely, it is a much better option. NAS can leverage your existing IP infrastructure and very rarely requires any additional hardware or software for access. It easily integrates with corporate security and authentication domains such as Radius, Active Directory and LDAP, making it a very attractive option for SMBs.