Intro to Pc Unit 6 Research Paper

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UNIT 6 RESEARCH PAPER 1

What is a NAS devise ?
A network-attached storage (NAS) device is a server that is dedicated to nothing more than file sharing. NAS does not provide any of the activities that a server in a server-centric system typically provides, such as e-mail, authentication or file management. NAS allows more hard disk storage space to be added to a network that already utilizes servers without shutting them down for maintenance and upgrades. With a NAS device, storage is not an integral part of the server. Instead, in this storage-centric design, the server still handles all of the processing of data but a NAS device delivers the data to the user. A NAS device does not need to be located within the server but can exist anywhere in a LAN and can be made up of multiple networked NAS devices.

What is the speed of the network adapter available on Nas device ?
There are many varieties of NAS devices, depending on if you build it yourself or purchase it. The speed is usually 1GB Ethernet connection but it can be changed to multiple Gb, 10Gb, fiber optic by adding a PCIe network cards.

What is the capacity range?
The capacity range also varies. With a port replication and add on hardware drive controller cards there really isn’t a limit on size.

Is there any fault tolerance (such as RAID) built into a NAS device?
The capacity range again 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. A board with 6 SATA ports can be replicated (1 to 5 port) allowing for 30 drives to be attached, if 3TB drives were used in raid 50 that would be 72TB of storage.

Are management features available a proper management console from which users and permissions can be managed.

Speculate on why a user would want to use a NAS ?…...

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