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NT 1110
Unit 6 Research Paper

NAS Device

Network-attached storage (NAS) is a dedicated hard disk storage device that is set up with its
own network address and provides file-based data storage services to other devices on the
network.   A network-attached storage device is attached to a local area network and assigned
an IP address, allowing both application programming and files to be served faster because
they are not competing for processor resources. A full-featured operating system is not needed
on a NAS device, so often a stripped-down operating system is used., many NAS devices run
their own proprietary operating system. NAS software can usually handle a number of network
protocols. The speed is typically one gigabit Ethernet connection but this can be changed to
multiple gigabit, 10 gigabit, fiber optic by adding a PCI-e network card(s). The capacity range
again varies; with port replication and add-on hard drive controller cards there is hardly a limit
on size. As fault tolerance, raid 50 is fairly stable if set up correctly, raid 10 has been touted as
one of the best setups since more drives can fail at one time without data loss. All of those
features can be used on typical NAS devices. While NAS management software is increasingly
versatile, it is also more complex, so the selection process requires careful consideration.
Typical NAS management software might automatically discover a vendor's storage resources
in a network, manage and adjust RAID configurations, back up NAS contents to standard
backup software, track storage utilization and offer capacity growth predictions, and even
monitor other storage systems that it cannot directly control. For those families where each
member has a computer hooked up to the same network and regularly stream certain files,
photos, music a NAS device is perfect for not using up much processor speed or memory.

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