SAN and NAS - a comparative analysis

enterprise storage is one of those days, the main concerns in the software field or related IT field or controlled. All day great deal of important information or data that is maintained in the future. Take for example a bank, millions of transactions a day worldwide, and banks should put all the information on these activities.

Network Attached Storage (NAS) and Storage Area Networks (SANs) are the two most common storage technologies today. NAS has such features as file servers and storage systems connected to the network, which is part of sin. parts of the U.S. does not currently sharing and remote file access via protocols such as NFS and CIFS. In addition, Fibre Channel, Ethernet and the basic means of transport. One important thing is that the required SAN storage devices, or storage devices that are not directly connected to LAN (unlike
the U.S.) but is connected to the server via switches or bridges. This reduces the traffic load on the LAN.

Comparison

SIN

or other device that connects to the LAN can be NFS or CIFS file sharing protocol used in the United States.

or storage devices can be connected directly to the LAN and network traffic.

NAS and the exchange of information on different operating systems, including Windows and Linux.

Efficient NAS or slightly less than two terabytes of data. network expansion, and this ability is a bit 'complicated, but less SAN implementation.

SAN

Only a server-class or SCSI or Fibre Channel SAN can be connected to a.

storage device or connect to servers via Fibre Channel and not to disturb the LAN traffic.

Or divide depends on the operating system files and some of San are not supported.

SAN device, or access to hundreds of terabytes of information and is easily extensible unlike NAS, but it is very expensive.

Today, the rapid technological development and new storage networking products to the market each day, the real difference between SAN and NAS has become very clear. Today, sometimes used in Ethernet and Fibre Channel SAN NAS is sometimes used. The only difference is that the selection can be used for the network protocol. SAN systems to transfer files over a network NAS provides to prevent the entire file meta-data, user authentication and permissions, etc.