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Rack
Mount Servers and Rack Mount Computers
Servers
often come in rack mountable form. The standard width of the
industrial racks used to store servers is 19". The height is
often quoted as 1U, 2U etc. Each "U" is about 4.5 cms
(1.75 inches).
A
full rack can contains 40 to 42U 1/4 Rack=10U (10 servers of 1U)
Half rack =20 U (20 Servers of 1U).
Servers
built in an ultra slim 1U to the slim 3U chassis may offer
restricted upgradeability due to the lack of height. Network and
other PCI card would need to be low profile cards and they may
still need to be mounted on a riser card. RAM is often mounted at
a slant as standard RAM may not fit comfortably. Rack mounted
servers use the same type of components that other servers use.
Irrespective of whether it's a 1U, 5U or 7U unit the chassis is
mounted on rails for ease of sliding into and out of the
rack/cabinet. (Sometimes the rails are "optional" so do
check when making your purchase)
Example
of 5U Server:
Example
of 1U Server:
Rackmount
Server Definition
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