36 Server Terms You Need To Know
An intelligent device that sits between an office's local area
network and the Internet. A router redirects incoming traffic from the
Internet to the proper computers on the network, and also concentrates
outgoing traffic and sends it out to the Internet. Most routers will
contain a basic firewall to provide some security.
See more: Router Security In Four Easy Steps
SAS (Serial-Attached SCSI)
A standard for connecting storage devices, with speeds of up to 3 Gbps and cable lengths of up to 8 meters (approximately 26 feet).
SATA (Serial ATA)
The de-facto standard for desktop hard drive interfaces, with speeds
of up to 1.5 Gbps and cable lengths of 1 meter (approximately 3 feet).
See more: Bigger Budgets Pave Way For Better Storage Options
A group of servers located in one place, devoted to a particular task or owned by a particular enterprise.
Server Operating System
An operating system intended for use on a server, with provisions that let multiple users access the server's resources.
A room designed to contain multiple servers, especially rack-mounted units. The room will typically have a raised floor to carry cabling and ventilation, and its own cooling system.
A computer shared by multiple users. It may be a repurposed desktop,
a beefed-up mini-tower PC, a blade, or a rack-mounted unit. Common
server applications include print-and-file sharing, e-mail, database
sharing, Web site hosting, and enterprise resource planning (ERP).
See more: bMighty.com's Server How-To Center
Storage Area Network (SAN)
A method of attaching an external storage device to a server so it
appears locally attached, with its contents immediately accessible by
the operating system.
See more: SAN Wars: ISCSI Vs. Fibre Channel
UPS (Uninterruptible Power Supply)
A device that powers a server, computer, or other hardware from a battery that is constantly recharged with power from the electrical grid. A UPS insulates a server from power glitches and, in the case of a complete power failure, typically supplies enough power for an orderly shutdown.
A server's ability to trick multiple operating systems (or copies of
the same operating system) into believing each one is the sole occupant
of that machine. Typically, one application runs per server to simplify
management, but if the application has marginal use, the server may be
largely wasted. With virtualization, multiple low-use applications can
be on one machine so that fewer servers are required.
See more: The Four Flavors Of Virtualization
WAN (Wide Area Network)
A network that extends beyond one building, as opposed to a local
area network inside a building, and may refer to the Internet itself.
See more: Four Ways IT Can Save On Small Branch Office Costs