• Network-attached storage (NAS) is hard disk storage that is set up with its own network address rather than being attached to the department computer that is serving applications to a network's workstation users. By removing storage access and its management from the department server, both application programming and files can be served faster because they are not competing for the same processor resources. The network-attached storage device is attached to a local area network (typically, an Ethernet network) and assigned an IP Address. File requests are mapped by the main server to the NAS file server. (Nerwork Attached Stroage) • NAS devices speed is typically one gigabit Ethernet connection but this can be changed to multiple gigabits, 10 gigabit, and fiber optic by adding a PCI-e network card(s). • The capacity range varies people have built 40 TB (terabyte) machines and other just have 2TB. With port replication and add-on hard drive controller cards there is hardly a limit on size. • RAID can be used on typical NAS devices.
• Management features are available with NAS.
• Reasons why users would want to use a NAS:
1. Power usage - All users may shutdown their computers.
2. Always on availability - All computers connected can access the data on the network. As long as the network is up and the NAS is functioning, it is always available regardless of what computers are on/off the network. 3. Centralized Storage for backup - If a computer needs to be rebuilt or wiped, you can push files and backups and restore from the same location. 4. Cost effective - Installing a RAID 1 in each computer (Mirror drive) would cost more and use more storage than perhaps a RAID 5 in the NAS with multiple PC's. This may apply more to offices than for example a small home with 2-3 PC's.
Nerwork Attached Stroage. (n.d.). Retrieved 10 26, 2012, from tech target:...