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.

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6answers
246 views

Servers with same workload in the same rack: good, bad or unimportant?

Our current server layout (not designed by me) has identical machines located on the same rack. We'll have all the database servers on rack A, all the fileservers on rack B, etc. This seems dangerous ...
5
votes
4answers
195 views

Rack enclosure dimensions

We noticed that rack enclosures have different depths (600, 800, 1000 mm) while the DELL rack servers are 600 mm deep. In addition DELL rack enclosures are only 1000 mm deep. Why should I purchase a ...
2
votes
3answers
6k views

how many blade enclosures can you fit in a rack?

Considering the power and cooling requirements of HP's or IBM's newest blade (10U) chassis fully stacked, how many of them can you fit in a standard size rack (42 U) ?
8
votes
6answers
908 views

Rack layout for future growth

We're getting ready to move to a new colo facility and I'm designing the rack layout. While we have a full rack, we only have 12U worth of hardware right now: 1x 1U switch 7x 1U servers 1x 2U server ...
3
votes
1answer
78 views

Standalone server setup for compute capacity

I'm developing an application for my company that will require a lot of compute capacity (running some very big mathematical calculations), and looking for some form of server setup to do this. For ...
1
vote
4answers
1k views

network rack types [duplicate]

When I go shopping for network infrastructure, I see lots of different kinds of racks available and I don't understand the difference between them. What are the different types of racks you would ...
1
vote
3answers
751 views

Are there any “Zero-U” PDU's that allow for power management/remote power control

I can't seem to find any PDU's (in general) that fit a 24U server rack that don't require at least 1U of rack space. (I'd prefer Zero-U) that allows for remote 'reset' of the power ports as well as ...
1
vote
7answers
2k views

Where can I purchase a good server rack cabinet? [closed]

We need to buy the first one and don't know where to start... Thanks.
13
votes
3answers
4k views

Economical way to get many harddrives into rack mount?

Please bear with me as being a bit of a newcomer at 19" rack-mounted equipment. I've thought a fair bit lately about the best way of getting 4x or 6x of 2.5" hard drives into my rack and are ...
3
votes
4answers
242 views

Mount servers at the center?

I can't afford a 4 post rack right now, but I can afford a 2 post one... However, you can't mount a server in a 2 post rack because it will break the ears. Will a 2 post rack support a server (even ...
11
votes
4answers
4k views

Good 1U Rack Firewall [closed]

I'm trying to find a good 1U rack firewall at a reasonable price. Most pricing is completely out of space (thousands of dollars? Why?). I don't want to list all features I need/want (there are too ...
5
votes
4answers
6k views

Why use rack servers over tower servers?

Aside from space, why use a rack mountable server over a tower server? Or is space the only reason... Tower servers are cheaper, more space for cooling, and more expandable... Why rack mount?
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vote
2answers
135 views

Rackmount Hardware Question

This is just a quick question. I havent been able to find any recommendations from Google searching. What is the maximum recommended weight for front mounting rack hardware? EDIT: I have a Hammond ...
3
votes
2answers
190 views

Is an EPO required on each rack

I've studied the NEC 2008 version and I can't find any requirement for an EPO to be mounted on each rack. For some reason the place I work requires them at the top of the rack and it's connected to ...
1
vote
1answer
324 views

What tools, parts, accessories do you keep in your Colo?

I know Colo is less popular these days with the Cloud, but I thought I'd ask people what tools and extra parts, etc they like to keep in their Colo cages or racks. Here are some of my favorites: ...
1
vote
1answer
235 views

Storage Chassis Rack Location

There are so many configurations of racks, it's not even funny. Where do you guys keep your storage located? I think the problem I'm having is that they're currently set too high in the rack and ...
0
votes
2answers
411 views

Dell PowerEdge 750 [closed]

Can I use Dell PowerEdge 750 just 1U without a rack at home? Does it need cooling? I want to have a low end server for learning.
2
votes
3answers
674 views

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 ...
17
votes
1answer
1k views

How to correctly move a server inside a rack up and down

Maybe a bit stupid question, but Sometimes (rarely but it happens) I need to move a server in a rack 1-2U up or down. What do you think, which of the ways is the most correct and useful and why? ...
2
votes
1answer
742 views

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 ...
1
vote
2answers
258 views

Software/Service for Controlled Shutdown/Startup of a Server Room

We are looking for a solution to automatically shutdown server room equipment in a controlled process, based on priority, automatically during a power outage and on demand if necessary. We would also ...
2
votes
5answers
689 views

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 ...
3
votes
1answer
1k views

Can the PowerEdge 2420 24U Rack Enclosure Be Completely Disassembled?

We have to relocate our existing Dell PowerEdge 2420 24U Rack Enclosure to another room in our office. Unfortunately, the door (to the new room) is too small for the Dell rack enclosure to fit ...
9
votes
5answers
4k views

Rack layout recommendations

We have a 24U rack in our lab and I'm going to completely redesign it during the next weeks due to the scheduled big hardware upgrade. I have a couple of the questions about the layout of the server ...
1
vote
4answers
320 views

What is the most probable cause for two memory modules to fail simultaneously on a rack mounted server?

Having spent some time on a rack mounted server yesterday afternoon we are now trying to determine the most probable cause of two DDR2 modules failing on an IBM server simultaneously. The server ...
2
votes
3answers
4k views

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 ...
5
votes
1answer
1k views

How good is the noise reduction on an XRackpro2?

Some manufacturers of soundproof rack equipment such as Kell Systems or Acoustirack do quote noise reduction figures but I can't find any specifications for an XRackPro2. Given the evasive nature of ...
15
votes
10answers
7k views

Mounting a server by only its ears?

Is it possible (and safe) to mount a 19-inch 4u rack server on a 2-post rack... by only its ears?
7
votes
8answers
896 views

Datacenter Power Consumption Table

Does anyone know of a good centralized resource that contains a consolidated list of server specifications relevant to the data center? Looking for Rack U sizing, power consumption, etc. for ...
11
votes
5answers
1k views

Server rack recommendations

I'm putting servers on a rack for the first time, and am thinking a 4-post open frame rack is adequate for my needs. I'm putting in a few HP DL 385's and a few other things. What I'm wondering is if ...
7
votes
7answers
3k views

Server Cabinet/Room Cooling

I currently have two desktops and three servers in my office sitting on the floor (I know this is bad). With that many servers the ambient temperature in the room goes up quickly. I am located in ...
1
vote
3answers
352 views

Rack servers that officially support CentOS

Does anyone know of any manufacturer that lists CentOS as an officially suported OS? Fujitsu and Dell don't support it. I'm specifically looking for CentOS support; vendors that only support RHEL ...
4
votes
6answers
2k views

Can I mix and match rack mount servers?

I want to know if all vendors rack servers are compatible with all rack chassis?
4
votes
1answer
2k views

PDU says to ground to rack with “thread making screw”.. this is impossible?

I'm trying to use the 'thread making screw' to ground my Dell PDU to the Rack, however the metal on the rack is impossibly hard. Is this even required? The included screws don't even seem "thread ...
3
votes
3answers
362 views

Linux embeddable cheap rack server

I want to embed my network connectivity application into a linux installed rack-mount server and sell it bundled. I googled some but couldn't figured out which it would be? Do you have any ...
4
votes
2answers
754 views

Replacement Rackmount ears?

I have some 1u and 2u cases where the ears mysteriously disappeared for them, so the cases are loose. My googlefu seems to be weak, are there places that sell "generic" rack ears for 2u cases, or ...
2
votes
1answer
4k views

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 ...
16
votes
5answers
10k views

Why do rack switches have their ports on the front?

I've ordered some rack hardware from Dell. A 42U rack, a 3U EqualLogic SAN, two 1U PowerConnect 5424 switches, three 1U PowerEdge servers, and some other stuff such as a tapedrive, firewall, UPS, etc. ...
12
votes
4answers
5k views

Is it okay to put a 2U server in a 2-post rack?

I have a Dell R710 2U server. It's pretty heavy, so it seems to me like it needs support in the front and the back, but we only have a 2-post rack. The rack is bolted to the floor, so it's pretty ...
1
vote
1answer
429 views

Where to buy rackmount kits for sonicwall and 3com switch [closed]

Does somebody know where I can order some rackmount kits that fit with a sonicwall nsa 3500 firewall, 3com 3300mx switch and 3com 4200 switch. They got lost when we moved to a new office
0
votes
1answer
173 views

I have one server that I want to put in a datacenter

I only have one server. I don't need a whole rack. What's an economical option for this? Is there any way to sublet part of a rack?
0
votes
1answer
1k views

What size screw to use with IBM NetBay clip nuts or cage nuts?

What is the correct size screw to use with the clip nuts or cage nuts that come with an IBM NetBay 19" rack?
1
vote
7answers
2k views

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 ...
7
votes
10answers
24k views

Rack layout tools [closed]

I'm wondering if there's any tools (preferably offline) that would allow me to layout all of the new equipment that will be going into several standard racks. Currently I'm using Excel to map out all ...
0
votes
2answers
232 views

Securing 2 post rack or securing patch bays?

We have a shared 2 post relay rack in a shared room in our building (Chatsworth brand). It only has patch bays on it (using 12U out of 46). We'd like to prevent anyone from just walking into the room ...
3
votes
4answers
3k views

Dell PowerEdge: powersaving BIOS settings differences

I'm closing in on purchasing a Dell PowerEdge R710 rack server and am curious to know the difference between Dell's power saving bios setting and their performance bios setting. Should I be concerned ...
0
votes
5answers
232 views

Server Systems under Extreme Environmental Conditions [closed]

During my study I have to do a student research project about server systems under extreme environmental conditions. Unfortunately I have really no experience with such systems. I already did some ...
2
votes
7answers
2k views

Rack mounted cooling unit?

We have a small mini rack which houses an X-Serve, Raid and Router. We added some more high performance fan units but still find that it gets quite hot in there and have recently been having to keep ...
1
vote
2answers
790 views

How to open HP rack keyboard/monitor tray

We have maybe 5 of these HP racks. On all of them the keyboard/monitor tray is very finicky. Sometimes it gets stuck and the drawer tray will not open. While stuck, repeated wiggling of the tray ...
14
votes
15answers
5k views

Tool to assist loading servers into a rack?

This three questions have been merged into this one. The following answers might have come from any of them, or might be a generic answer to all of them. Is there any kind of tool to assist in ...