Overland Storage SnapServer Administrator's Manual page 258

SnapServer 7.0 Administrator's Guide
MTU
Short for Maximum Transfer Unit. It is the largest size packet or frame, specified in octets
(eight-bit bytes), that can be sent in a packet- or frame-based network.
Multihomed
A SnapServer that is connected to two or more networks or has two or more network
addresses.
N_port
A Node port connects via a point-to-point link to either a single N_Port or a single F_Port.
N_Ports handle creation, detection, and flow of message units to and from the connected
systems. N_Ports are end ports in virtual point-to-point links through a fabric, for example
N_Port to F_Port to F_Port to N_Port using a single Fibre Channel fabric switch.
NAS
Short for Network Attached Storage. Hard disk storage that is set up with its own network
address as opposed to 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 NAS
device is attached to a local area network (typically an Ethernet network) and assigned an
IP address.
NAT
Short for Network Address Translation. A technique for passing network traffic through a
router whereby one set of IP addresses is used on one side of the router and another set of
addresses is used on the other side. This is done to avoid address conflicts and to increase
the address space of the internal network.
NDMP
Short for Network Data Management Protocol. A protocol standard used by some Network
Attached Storage systems to provide an industry standard means to do backup and restores
of the NAS system without the need for 3rd party agents to be installed on the NAS device.
Also see
NFS
Short for Network Filesystem. A client/server application that allows a computer user to
view and optionally store and update files on a remote computer as though they were on the
user's own computer. The user's system needs to have an NFS client and the other
computer needs the NFS server. The SnapServer is configured as an NFS server by default.
NIC
Short for Network Interface Card. A board that provides network communication
capabilities to and from a computer.
NIS
Short for Network Information Service. A network naming and administration system for
smaller networks that was developed by Sun Microsystems. NIS+ is a later version that
provides additional security and other facilities. The SnapServer accepts NIS users and
groups.
10400317-001 10/2011
NDMP.org for further details.
©2010-11 Overland Storage, Inc.
GL-12