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Questions tagged [rack]

A rack is a frame or enclosure in which servers, networking equipment, and associated equipment is mounted. For questions about the Ruby framework, use the tag ruby-rack.

A rack is a frame or enclosure in which servers, networking equipment, and associated equipment is mounted.

The industry standard for racks is the 19-inch rack, so called because it mounts equipment 19 inches wide.

Racks are measured vertically in rack units (U) of 1.75 inches. The most common full-size racks used in data centers are 42U tall, though smaller racks are available for specialized applications.

For questions about the Ruby framework, use the tag .

204 questions
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How to protect the server rack from water streaming from above?

Recently we had a rather funny incident: suddenly about a liter of water ran from above the drop ceiling right in the middle of the office. Turned out it was some pipe in the air conditioning that detached and released condensed water. Obviously…
sharptooth
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Lock a server within a rack of several servers

I have a 42 RU Dell rack with several 2RU servers in it. I need to prevent physical access to one of the servers in the rack, but not the others. The face plate that comes with the Dell servers is no good as they are keyed generically (sp?) and…
user56734
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What fiber should I run between 2 floors in a company site?

I'm helping a customer in moving his company to a new building. There we'll have two racks on two different floors to accomodate various servers and switch infrastructure. We'all also use the opportunity to migrate the last remaining 100mbits…
Luke404
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Power strategy for first server rack

We are about to install our first server and networking rack at my office. I'm more of a programmer than a sysadmin, so I'm learning as I go. Let me start by saying that it's just a router, patch panel, and PoE switch that will be going on the rack…
Jon
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5 answers

Cage nut sizes: is 10-32 the same as M5?

For an old 19" rack, I need to buy some cage nuts for round holes. You can't get them here in the Netherlands, it seems, but Amazon has them. However, I don't want to get US sized thread... Amazon says that the above product is 10-32 (US size) and…
Halfgaar
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The best cable organizing solution for the servers on the rails?

I'm looking for the best cable organizing solution for the servers installed on the rails inside a rack as well as for the equipment on the rollout carts. I believe there should be some foldable cable holders like rackmount KVMs have - the elbow…
disserman
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Estimation of server cabinate weight?

Anyone got any idea what the aprox weight of a half size server rack (with stuff in it) would be? Assume a 24U dell rack with 4x1Us and 4x2Us, switch, kvm unit, cables and a couple of low end UPS devices inside.
dansquid
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Server Rack Relocation...Least Bumpy Option?

So I have a floor-standing half rack on wheels. Something similar to this --> https://www.amazon.com/StarTech-com-Portable-Server-Rack-Cabinet/dp/B006ZLV5HA. It's loaded up with server equipment that was configured in a staging area of the office.…
gregarican
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How to upgrade APC Rack PDU?

I have an APC Rack PDU AP7920 (hardware revision B2, manufactured 07/21/2012). When I log in via telnet I get: American Power Conversion Network Management Card AOS v3.3.4 (c) Copyright…
divB
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Redundant power solution in datacenter rack

We have two racks in a datacenter, currently powered by two independent sources. All devices are distributed across four different power extenders, and a few critical ones are first connected to a UPS and then to one of the power extenders. Our wish…
Jax
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shelving as a cheap rack?

So, I'm cheap and I buy tower servers instead of blades. I was thinking of getting a workstation for my servers, but came across some industrial shelving. The shelving is metal and is capable of holding 3000 pounds. The potential concern I have…
mson
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Rack PDU with IP control and surge protection

Im speccing up a new 16A PDU for a 42u rack build, i need a PDU with IP control so that i can power cycle devices remotely. But I've noticed that most PDUs with IP control don't have surge protection on them. I can find lots of surge protected PDUs…
sam
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Cable management in cabinet and between cabinets

We currently have three cabinets that over time have turned into a spider web. These racks host Servers (power an ethernet connections in the back). Network switches, Firewalls, Routers etc. (all have power interfaces in back and networking in…
Dovid Bender
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How is air-flow designed in closed racks?

I have seen (older) racks which are fully-closed. For example similar with plexiglass doors: Or with metal doors without any grid/holes. Are such racks designed for data-centers with raised floors and take cold air from the bottom and push hot air…
Martin
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What are the considerations which decide the server Dimensions in Rack Servers?

In a DataCenter, say a rack is 42U high. Some rack servers in that rack can be full-width and 1U high, while some servers can be half-width and 2U high. Yet others can be half-width, 1U, but double depth. In all cases, the "volume" or "capacity" of…
Prem
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