||NAS – Network Attached Storage
||SAN – Storage Area Network
||It can be mapped as network drives to share on that server.
||It can be used as a ‘disk in disk’ and volume management utilities.
||It provides storage and a file system.
||It provide Block based storage.
||Protocols –> NFS, CIFS & SMB
||Protocols –> SCSI, Fibre Channel, iSCSI, ATA over Ethernet & HyperSCSI
||For small & medium business
||For large organizations
||Storage Capacity –> up to few TB
||Storage Capacity –> Many TB
||Multiple NAS Devices
||Single SAN & Multiple high performance disk arrays
||Specialized knowledge and training is not required to configure and maintain NAS.
||Specialized knowledge and training is required to configure and maintain SANs.
||NAS & SAN are not mutually exclusive. A hybrid of SAN and NAS can offer file and block level protocols from the same system to support NAS and SAN.