Monday, December 16, 2013
1U
- 7U
The
1U, 2U, 3U, 4U, 5U, 6U and 7U are all different sized rackmount servers; the U following
the number is short for unit. The number indicates the size of the rackmount,
1U being the smallest rackmount and 7U being the biggest rackmount. Below is a
listing of each of the different units and their dimensions, although theWidth and Height of a rackmount
may be standard, the depth of a rackmount may
change, as can be seen below. If your rackmount server is going to be placed in
a constrained area, it's best to verify with the manufacturer of the rackmount
what the exact dimensions are. In the picture to the right, is a picture
Courtesy of Dell Inc. of some of the DellPowerEdge servers and
examples of different rackmount units.
Unit
|
Dimension (W x H x D)
|
1U
|
19" x
1.75" x 17.7"
19" x 1.75" x 19.7" 19" x 1.75" x 21.5" |
2U
|
19" x 3.5"
x 17.7"
19" x 3.5" x 20.9" 19" x 3.5" x 24" |
3U
|
17.1" x
5.1" x 25.5"
|
4U
|
19" x 7" x
17.8"
19" x 7" x 26.4" |
5U
|
19" x
8.34" x 19.67"
19.1" x 8.75" x 26.4" |
6U
|
19" x
10.5" x 19.5"
|
7U
|
17" x
12.2" x 19.8"
|
Most
collocations and ISPs
accept 1U, 2U or 5U chassis; however,
it is still a good idea to check with whomever is planning to host your server to verify what
they support and at what cost.