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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3answers
95 views

Can any standard rack server or enclosure be mounted on sliding rails?

I'm looking to buy an empty rack-mounted enclosure (2U to 4U) to fill with some custom equipment. One of the requirements is that we can easily open the enclosure top and access the contents ...
0
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0answers
71 views

Message from application: cannot load such file — puppet/util/command_line (LoadError)

I have configured puppet with passenger (using - https://docs.puppet.com/guides/passenger.html AND http://www.olindata.com/blog/2014/09/setup-puppet-master-passenger-and-apache-centos ). [root@a-...
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1answer
24 views

Has anyone purchased an AcoustiRack?

Looking for first hand experience with an AcoustiRack. Noise is fairly important. The main concern is heat. The unit will have a few Dell servers r510, r620, VRTX fully loaded, 2 APC UPS 2200va. ...
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1answer
21 views

Cooling Solution for CCTV Rack

I'll do my best to provide a clear question. I'm not a network/server guy...just a young controls/systems engineer who knows enough to be dangerous :) My company is working on a major controls ...
0
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1answer
83 views

Exhausting Heat in Server Rack

I was recently provided a 4 post Server Rack/Cabinet (48U) to fit all my equipment cleanly. One of the items they provided was a Tripp Lite Rackmounted A/C Unit (SRCOOL7KRM). This was truly Awesome ...
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1answer
26 views

Access unreachable foot of server rack?

I have a server rack that is in the corner. Pushed it there with the installed casters. Instructions seem to be to raise the rack off the casters using the adjustable feet. Problem is I can't reach ...
1
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0answers
25 views

Need 80 422/485 serial ports [closed]

We need to have 80 physical 422/485 serial ports on a Linux rack server. Custom connectors are an option. Trying to think of a best way to do that. There are some 4 or 8 port PCI cards out there. ...
0
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1answer
38 views

In a 42U server rack with 12 very hot 2U-nodes, what is a good configuration? All nodes at the top or bottom?

Currently we cannot fill the 19" rack completely. So we have 12 GPU nodes, 2U each. The 42U rack is connected to a cooling unit that blows cold air in front of the computers, sucking in hot air from ...
0
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0answers
29 views

What's the use for direct airflow network switches? My small one-cab deployment needs reverse

What's the use for direct airflow network switches? My small single-cabinet deployment needs reverse, meaning cold air intake at power supplies side, exhaust at I/O side, as all of my servers have NIC ...
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17answers
14k views

Do you skip a rack unit between servers?

It seems like there's a lot of disagreement in mindsets when it comes to installing rackmount servers. There have been threads discussing cable arms and other rackmount accessories, but I'm curious: ...
0
votes
1answer
57 views

Install Ubuntu LTS on a Primergy RX300 S4

I'm a sysadmin beginner so bear with me. We got delivered a Fujitsu Primergy RX300 S4 rack server and we need to install Ubuntu LTS 14.04.3 on it. The supported OS have not listed Ubuntu or Debian - ...
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2answers
230 views

Does WIndows 10 have drivers for an IBM rack server?

I want to buy an older IBM X3650 M2 rack server and put Windows 10 on it. Can Windows 10 be installed on a dual CPU rack server and will I run into missing driver issues (motherboard,ATI graphics ...
0
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1answer
37 views

What kind of breakout cables do I need for this rackmount setup? [closed]

I am going to be building out a rack and I would like to re-use all the existing hardware for my NAS device and just put it in a rackmount case. I currently am running FreeNAS inside a Silverstone ...
0
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0answers
118 views

Lenovo System x3650 M5 RAID 5 Backup and Restore

0 down vote favorite I have a Lenovo System x3650 M5 RACK Server that I already configured to RAID 5 with Windows Server 2008 R2 operating system installed. I have two partitions letter C: and E:. ...
2
votes
1answer
86 views

Side-effects of having different Memory (RAM) in a server? Example 1600 Mhz and 2100 Mhz [closed]

I know that you should always have the same memory clock speed and in best case even the same manufacturer meaning the same RAM Module. But what happens if you use for example the following setup: ...
4
votes
2answers
1k views

Interconnecting options for server rack and network rack?

This is my first post on Stack Exchange after years of roaming around. I'm having difficulty deciding on a rack setup that meets our company's needs for scalability, management, and future proofing. ...
0
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0answers
230 views

Removing rails from server rack

Not sure this is the place for this but I'm banging my head against a wall and figure before I lose a finger trying to remove these rails I'd give it a shot. Anyone have any idea how to get these ...
0
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2answers
156 views

Cable management and Rack design

I'm new here, and looking for some suggestions on how to design my rack. I have a chance to tidy up my server room and got a green light on server downtime for 24 hours this weekend. Below is my ...
1
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1answer
26 views

Server Rack, are posts good enough? [closed]

I am trying to rack mount a bunch of equipment at my house and had a question. I currently have four posts (2-front, 2-rear) from an APC rack that was decommissioned. Just the posts that the servers ...
7
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4answers
4k views

Does UPS Rack Position Matter

Short version of question: Is there any reason a UPS (or any other device) should be at a particular level in a rack. Long version (with explanation): I have a full height rack with two servers, ...
1
vote
0answers
118 views

Fujitsu Primergy RX100 S6 Windows Web Server 2k8 R2 Hard Drives not found

I got a question about our Fujitsu Primergy RX100 S6. We want to install Windows Web Server 2008 R2 on a complete brand new RAID 1. The BIOS finds both of the hard drives and also the virtual disk ...
11
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3answers
14k views

Racktables/Rackmonkey any usefull rack management Software out there? [closed]

So what is everybody using to manage their racks. We are currently using MediaWiki with quite a lot of custom templates for the servers/racks and virtualised instances. I looked at racktables.org and ...
1
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0answers
63 views

Horizontal server rack mounting points / adaptors? [closed]

I've got limited space on a project and we are having to compromise on a half width rack. This is fine as most of the kit is going to be on shelves on the rack (as opposed to rack mounted directly) ...
10
votes
2answers
632 views

Cisco Catalyst 2960 Switches - Can I reverse the air flow?

I have some equipment that will be moved to a new datacenter soon. At the current datacenter, the switches are mounted in the back of the racks so the air flow for the switches is reverse in ...
1
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2answers
324 views

UPS systems in parallel for redundancy and/or capacity, generator as backup, ATS,

I am about to upgrade our server room's power plan and would kindly ask you for your help with a proper, optimal design / advice on "good practice" approach. Please note that our business is small, ...
1
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0answers
30 views

How to ground a server rack on 3rd floor office [duplicate]

I am in the process of building out a server rack in an office on the 3rd floor. Does anybody know of any good options out there that can help me out? Wall outlets have 3-prong connectors with working ...
3
votes
1answer
2k views

passenger(mod_rails) fails to start puppet master under nginx

On the server [root@bangvmpllDA02 logs]# ruby -v ruby 1.8.7 (2011-06-30 patchlevel 352) [x86_64-linux] [root@bangvmpllDA02 logs]# puppet --version 3.0.1 and [root@bangvmpllDA02 logs]# service ...
46
votes
7answers
6k views

Cable Management Policy

We've all seen good and bad examples of cable management. What are objective, measurable requirements that can be used in a policy to maintain cabling order in the rack/server room/data center? I'...
2
votes
1answer
245 views

Zero-U PDU preferred mount location

Looking for some experience from the field - The rack I manage has two zero-U vertical PDU's supplied by the datacenter. They have fitted one on each side (one on the left, one on the right). The ...
4
votes
2answers
2k views

What is the proper way to connect cables from a patch panel to a switch when you have more ports on the patch panel than on the switch?

We're in a situation at our new building where we have 58 drops but only 48 ports on our switch. Roughly 40 of our drops will be in use, but it's a random selection ranging from 1 to 58. Typically I ...
7
votes
3answers
1k views

What is the name of this screw? (from HP ProLiant quick-deploy rail kits) [closed]

I need the name of the screw for the HP quick deploy rail kit. The screw clicks into the square holes of the rack. It is a Gen4 Rail kit but the screw is like the Gen8 Rail kit ones. I called HP ...
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 ...
1
vote
1answer
329 views

How to wall mount a rack when studs don't line up [closed]

This is my first time mounting a server rack and I'd like some advice. The rack is for my home and will be a 10U wall mount for a patch panel, switch, and a few shelves for UPS and modem/satellite ...
10
votes
1answer
347 views

Standard Bolt Pattern for Racks in Datacenters

Is there a "standard" way of bolting racks down that is interchangeable between vendors? At our datacenter we've standardized on a Damac rack for our builds. Because we're building in volume, the ...
0
votes
1answer
120 views

How standardized are rack server components? [closed]

I have a couple of servers at home for personal use, and I'm considering replacing them with rack servers that I'd scrounge up in used condition, just for easier management and whatnot. I don't have ...
8
votes
6answers
913 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 ...
2
votes
2answers
300 views

Rack Server Width

I am dabbling into the world of rack servers and trying to teach myself a thing or two. I have come to a roadblock about the width of a rack server, I have read that the standard width for a rack ...
0
votes
1answer
129 views

Putting the server “outside” [closed]

I live in Montreal, where the temperature oscillates between a max of 27 celsius in summer and a min of -27 celsius in winter. I am currently in the process of purchasing a cheap decommissioned 2U ...
-1
votes
1answer
104 views

Can a 69,85 cm hp ssf proliant sit in a 800mm rack.

Hi can a hp proliant that is specified to be 69,85 cm in length fit into a 800mm closed rack. No air holes at the front of the rack. But there is a cooling unit attached to the rack. There will be a ...
4
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0answers
401 views

Datacenter Inventory Management [closed]

In our environment the following is true: Every resource (think server, switch, pdu etc) is mapped to a specific device identifier in a database The problems are: Not every device which exists in ...
1
vote
1answer
2k views

Who makes the best server racks/cabinets? [closed]

Who makes the best 19 inch server racks/cabinets? I'm considering the following brands in a four post, square hole configuration: APC Wright Line Rittal Chatsworth Great Lakes Middle Atlantic HP ...
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 ...
2
votes
3answers
5k 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 ...
-1
votes
1answer
79 views

How to choose the right rack and UPS?

I have two configurations: 10 Dell PE R720 servers, 2 Dell EqualLogic PS6100S arrays, 4 Dell N3000 Switches, 1 N4000 switch 20 Dell PE R820, 1 Dell EqualLogic PS6100S arrays, 2 Dell N3000 Switches, ...
15
votes
1answer
5k views

My First Rack - Basic knowledge about server racks

So my company recently moved to a new building and my boss had an APC rack installed with the switches in it. We are now looking to buy a rack server to put in there. I'm just a PC repair kind of IT ...
7
votes
8answers
5k views

Any reason to use a rack-mountable server if I lack a rack to mount it on?

I'm somewhat new to server hardware, and was wondering if there was any reason to purchase a 19-inch-rack-mountable server as opposed to a standalone (tower) system, or any difference between the two ...
2
votes
3answers
277 views

The best cable organizing solution for the servers on the rails? [closed]

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 ...
23
votes
3answers
3k views

Server won't physically fit in rack: which technical problems will I face in future if I force the mount?

I have to reuse old rack and servers. The server is 74 cm deep and the rack around 65 cm. With a few tricks I'd be able to mount everything I need if I leave back and front doors opened. I thought ...
2
votes
1answer
235 views

server administration for 1U rack server placed in intranet: how to deploy web application and update the server without internet connection? [closed]

A MNC sales department hired my services as a software consultant to build them a web application. This web app generates excel files based on their internal business processes. This web application ...
6
votes
3answers
734 views

Is disk serial readable from supermicro chassis?

We are working with a hosting company for managing our dedicated servers. We asked for a replacement disk on one of the servers by providing the serial number. They took out 2 other disks instead and ...