NAS and SAN are similar enterprise level storage implementations. Whereas CDN is generally used for delivering data closer to the requested source. Let me explain each of them in detail: CDN: Content delivery network. CDN is a network of distributed servers which provide data to clients which are closer to the specific server location. read more
NAS - Network Attached Storage - Storage which can be accessed and used in the network using IP/hostname. NAS is for a group of users. This you may not know where actually it is present. read more
A NAS is a single storage device while a SAN is a local network of multiple devices. SAN and NAS offer complementary solutions for network storage. A NAS is a single storage device while a SAN is a local network of multiple devices. read more