19 rack how many u

When building a server, deciding between a variety of mounting options can be intimidating. There are tons of server rack sizes to fit all of the different ways that people use servers. Understanding just a few variables will allow you to make an educated purchase in no time. Secondary factors like thermal requirements and security are good to think about in advanced, but can be manipulated more than the rack itself.

Server rack height is one of the more popular ways to classify a server. For rack enclosures, you might also encounter 22U and 27U racks. Plenty of people in the rack infrastructure business build non-standard sizes. This is especially true for open-frame racks. Because of their lighter weight and versatility, open-frame racks can reach heights of up to 70U. At the same time, they can be as small as 5U.

Server rack cabinet enclosures, on the other hand, can be a non-standard 18U or 37U. Unlike height, server rack depth is commonly measured in inches and has is much less variation in sizes.

Server racks can range from 0 to inches in depth, but are commonly seen at 24 and inch depths. A inch rack would be perfect for housing network equipment, AV equipment, patch panels, etc.

Any depth greater than that can either house larger equipment or provide extra space for cable management and other accessories. Even if you have a high depth rack, rails with adjustable mounting depths can help a shorter server fit perfectly. A rack unit or U is the standard terminology for describing sizes associated with 19 inch racking.

Knowing how much rack unit space you require is incredibly important when installing 19 inch rack cabinets and enclosures. The unit calculator below can convert rack U's into cm, inches and feet, which makes it a very useful tool for any installer or musician who needs to know exactly what equipment to buy when building a 19 inch rack.

A rack unit abbreviated as U, less commonly seen as RU is a unit of measurement applied to equipment racks and the servers, disk drives and other devices that they contain. One U is 1. Rack units for equipment is considered maximum dimensions. In practice, devices are often made slightly smaller than the specified U value to allow a little space.

A device specified as 2U, for example, may in reality measure 3. Retail Trade. Flight Case Hardware. Considerations when selecting a rack by height : In selecting the height of your server rack, you will want to keep in mind both what the cabinet's external height is, and how many "U's" rack units of rack mountable equipment you need to fit in it. Considerations when selecting a rack by depth : In selecting the depth of your server rack you will want to keep in mind the deepest piece of equipment you will be putting in the rack; and then add a couple additional inches for space to run your cables and power cords.

After you select the Rack Height you need above, you will then be able to select your Server Rack Depth and Server Rack Manufacturer, and configure your rack to your specific requirements. External Height : Determining the correct rack height is extremely important. Not only should you consider both your current and future internal rack space requirements, but please be sure to allow enough room for ceiling clearance and any cabling or site requirements, as well as any dock or freight elevator limitations you may have.

Rack Units : With the exception of some legacy equipment, monitors, and keyboards, most server and network equipment sold today is intended to be rack mounted. So for example, if you have 20 x 2U high servers you need to mount, you will need a server rack that has at least 40U of rack space - keeping in mind any room you need for a KVM switch, UPS, patch panel, etc.

Please note that actual internal and external height vary depending on rack manufacturer.