Storage Virtualisation

Storage Virtualisation

1. SAN (Storage Area Network)

   • file system is managed by Head unit.
   • Professional and Enterprises
   • Much More Expensive
   • Protocols used in NAS are: File server,CIFS etc.
   • not suitable for that environment which has high speed traffic.
   • Not dependant on the LAN and uses high speed fibre channel network.

2. NAS (Network Attached Storage)

   • file system is managed by servers.
   • Homes and small scale businesses
   • Less Expensive
   • Protocols used in SAN are: SCSI, SATA etc.
   • Managed by CPU memory
   • high performance in high speed traffic systems.
   • Single Point of Failure
   • Needs TCP/IP networks and depends on the LAN.