NAS - Network Attached Storage
•Various
Devices (CD Towers, SCSI Towers, Specialty Servers)
•Each
Device Connected Directly to network, with own IP Address.
•If a
Server crashes, the data on a NAS device is still accessible, depending on what
device is used.
General Information NAS
•NAS devices are inexpensive and easy to
setup. Can cause difficulty to maintain, and can bog down networks if used in a
Large Network.
•Each devices maintains it’s own IP
address. This makes it easy to access data on a NAS from anywhere in the world.
•There is also no worries about server
crashes, since you do not need an intermediate device to access a NAS.
•Windows, MAC, and Unix all support access
to a NAS device one way or another. (FTP, NFS, File Share)
•A simple example of a NAS device would be
an FTP that you use to store work documents on. You can map the ftp as a drive
on windows machines, or access it through an FTP client.
SAN-Storage Area Network
•A
Network of Storage Devices that are connected to each other and to a server or
cluster of servers, which act as an access point to the SAN.
•SAN
use special switches that look like standard networking hubs to connect to the
servers and to each other.
•Allows
data to be transmitted between SAN devices without polluting the network.
General
Information SAN
•A SAN is primarily used in a large data
environment for data storage.
It is not possible to access a SAN
without an intermediary unit (A server/Mainframe)
•They are expensive to setup, but easy to
maintain.
•SAN’s also provide a central storage area
for tape backups to be taken from.
•SAN Hard drives can be SCSI, ATA, or most
commonly, fiber connection.
•ISU currently has two SANs in use. One
runs the primary server cluster, and the other is used in the Library, as part
of the DRP plan(in the works).
•A SAN is primarily used in a large data
environment for data storage.
It is not possible to access a SAN
without an intermediary unit (A server/Mainframe)
•They are expensive to setup, but easy to
maintain.
•SAN’s also provide a central storage area
for tape backups to be taken from.
•SAN Hard drives can be SCSI, ATA, or most
commonly, fiber connection.
•ISU currently has two SANs in use. One
runs the primary server cluster, and the other is used in the Library, as part
of the DRP plan(in the works).
