How tall is a 1U rack mount?
How tall is a 1U rack mount?
1.75 inches
1U refers to a height of 1.75 inches or 4.445 cm. This is the space between the rack shelves that is available for device installation. The size of rack mountable devices is often specified in ‘U’ with a number. A one-rack device is a 1U, while a 2U device requires two rack units.
How tall is a server rack U?
A server rack unit, or U, is a unit of measurement used to describe the amount of equipment space a server rack has. A U is 1.75 inches or 44.45mm high. An 8u rack has 8 units of vertical server rack space. Note: Equipment can be more than 1U in size.
How big is a 1U rack space?
One U is 1.75 inches (44.45mm); the standard rack, at 19 inches, is 42U. Rack servers and other hardware designed to be rack-mounted are manufactured in multiples of 1.75 inches and specified in multiples of rack units, usually 1U, 2U, 3U or 4U. Racks are designed to hold equipment of those sizes.
How is rack height measured?
The total rack unit is measured from the middle of the rack’s top hole of the previous U space to the top hole of the current U space. Spacing between holes within a rack unit are the same at . 625 inches, but that on its own would only make up 1.35 inches of height.
How many U are in a cabinet?
42U
The height of the electronic modules is also standardized as multiples of 1.75 inches (44.45 mm) or one rack unit or U (less commonly RU). The industry-standard rack cabinet is 42U tall; however, 45U racks are also common.
How tall is a 42U rack?
Chatsworth 42U Rack – Dimensions and Specifications:
| Maximum External Height | External Width | External Depth |
|---|---|---|
| 82.30 in. (2090 mm) | 24.00 in. (610 mm) 27.3 in. (693 mm) | 27.00 in. (690 mm) 34.40 in. (874 mm) 40.40 in. (026 mm) 43.40 in. (1102 mm) 48.40 in. (1229 mm) |
How many 1U servers will fit in a rack?
A standard rack is 42U of space. You can technically fit 42x 1U servers in a rack, but, you need to consider other equipment (routers, switches, cable management, etc) which will all take up space. Power consumption is probably a more likely a limiting factor then space as 42 servers is going to take a LOT of power.
What is the standard height for a rack?
A typical full size rack is 42U, which means it holds just over 6 feet (180 cm) of equipment, and a typical “half-height” rack is 18–22U, which is around 3 feet (91 cm) high.
How much is 1U rack space?
This three hole group is defined as a Rack Unit (RU) or sometimes just call a “U”. 1U occupies 1.75″ (44.45 mm) of vertical space. Manufacturers of rackmount equipment make their product lines based upon how many RUs that the equipment occupies in the server rack.
What is 1U or 2U on rackmount?
The 1U, 2U, 3U, 4U, 5U, 6U and 7U are rackmount servers of different sizes , and the U following the number is the abbreviation for the unit.The number indicates the size of the rackmount, with 1U being the smallest and 7U being the largest.The image, courtesy of Dell Inc., shows some of the Dell PowerEdge servers and examples of different rack-mount units.
