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.

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24 views

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 ...
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21 views

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 ...
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1answer
38 views

Grounding of a server rack on wheels

I have a 42HE 19” server rack which houses a bunch of equipment (UPS, PDU, server, network, ...). It has wheels so it’s easy to move and it stands on a concrete floor. The rack is out of metal and ...
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1answer
44 views

What will I need to create a web server out of an R710? [closed]

I recently got hold of an R710 (DELL PowerEdge) & want to use it to host multiple sites. I did not come with any HDD’s but I was told I need one with Windows Server. I currently host my sites on a ...
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1answer
98 views

What are the advantages and disadvantages of tower and rack servers

I would like to know what are the advantages and disadvantages of tower servers on rack-mounted servers and vice versa. In terms of performance, safety, cooling system, maintenance... I want to know ...
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1answer
34 views

Patch panel with J45 Cat6 female/female connectors very fragile connection

I have a patch panel with the following female/female CAT6 RJ45 snap-in connectors in my cabinet: It basically serves as a pass-through for the cables at the front to the cables at the back and vice-...
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3answers
3k views

How to decrease humidity level in a server room

We have a small server room and the humidity level inside the room is far from the ideal. We have been measuring it between 60% and 68% for 3 months. Ambient room humidity inside the building is about ...
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25 views

PostgreSql query-execution-times become very large at Hanami App (Sequel)

I have a Hanami App which uses PostgreSql (9.5) as db-server (Rom and Sequel under the hood). It works quite well, but after some time with less interaction (i.e. over night), I observe very slow ...
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1answer
34 views

iLO Interface connections of storage device in the server rack [closed]

I have a setup of 3 racks. In each there are 2 storage server (HP DL560 GEN8) and 4 compute server (HP DL360 GEN8) and 2 control planes (HP DL360 GEN8) and on top of the rack 2 patch panels. Above all ...
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1answer
86 views

How compatible are rack-mount server rails across different manufacturers?

I have a bunch of rackmount chassis manufactured by Chenbro which were sold without rack-mount rails. I have an opportunity to purchase a bunch of second-hand rack-mount rails manufactured by ...
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131 views

Must a patch panel be initially terminated in the rack?

If Cat6 Ethernet cables were terminated to a wall mounted patch panel, is there a method to move the patch panel to a rack (without having to cut them and reterminate them)? Is a patch panel coupled ...
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1answer
82 views

Can a Vertical PDU be mounted in an enclosed rack?

I purchased an enclosed 12U rack as well as Vertical (0U) PDU, but can't figure out how to mount it in the rack vertically. I assume I need to mount it on the side posts of the enclosure, since, if I ...
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2answers
55 views

How to work out the rack requirements for a specific machine?

first time trying to work out what rack to get for a specific machine. The machine I am looking at is 1U and 400mm (15.5 inches) deep. I am hoping to be able to use a 450mm (17.7 inches) deep rack ...
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2answers
75 views

Is there a command to physically identify a particular Allied Telesyn switch in a rack among multiple switches?

I have several identical older Allied Telesyn switches (model AT-FS8326) mounted in a rack without any labeling. I know their IP addresses and I have the access to their CLI over the SSH protocol. I ...
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1answer
66 views

Migrating tower servers to a rack sytem

We have a small office but I'm starting to see the benefit of a rack. We have: Windows Server as a DC and for file hosting. Linux machine for the phone communications. DVR for the cameras (rack form ...
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1answer
124 views

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 ...
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1answer
35 views

Replace HDD Cage with another one

I have a HP Rackmountable 2U Server (HP ProLiant SE326M1). This Server has a P410i Raid Card with a hdd cage for 25x 2.5" SAS HDDs. Since 2.5" SAS HDDs are pretty expansive, I want to replace the cage ...
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2answers
109 views

What kind of server rack is this? (Type and possible manufacturer)

I'm not sure what kind of server rack this is or what to call it (half-height, open/etc.) When identifying this rack in the field, what would you call it as a description to someone over the phone? ...
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2answers
120 views

What is the name for the pieces of metal in a rack that cage nuts are installed into?

You would not believe how much consternation this simple question has caused my office. :) When installing cage nuts to mount rails or equipment, the nuts are clipped into a piece of metal with ...
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2answers
145 views

How can I adjust the name of a process I run?

I have a rack/ruby application on a server. I run it as follows: nohup rackup -o 0.0.0.0 -p 1234 & In the output of "top" command it appears as simply "ruby" PID USERNAME THR PRI NICE ...
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1answer
239 views

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 ...
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27 views

Stabilising feet for HP rack

I have inherited a HP 10636 G2 42U rack and I'm trying to work out the stabilising feet. Here's a photo of one of the corners (the castor is visible behind the metal bracket): http://imgur.com/a/LLP4K ...
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1answer
79 views

Server Rack setup, correct? [closed]

I plan to build my server inside a rack. It is pretty simple but not cheap so I wanted to know if everything fits? Parts: -https://www.amazon.de/Serverschrank-stehende-Schrank-Traglast-RAL7035/dp/...
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1answer
55 views

Rack Power Draw Reliability

I am responsible for several racks worth of gear, and as part of a datacenter efficiency project, I need to move some gear around. One constraint I'm running into juggling these servers around is ...
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1answer
2k views

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 ...
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2answers
358 views

Choosing the correct server rack width

I am required to setup a server rack 42HE that keeps some 2HE rack servers with following dimensions: 89 mm (H), 437 mm (W), 647 mm (D) The rack i want is a 19" one and available in these dimensions:...
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1answer
243 views

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 ...
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3answers
2k views

Difference and compatibility between IBM, Dell, HP server rails

There are 3 main builders of pizza box format servers (19" - 1U, 2U…): IBM Dell HP They all three sell their own rails for the standard or proprietary bay to mount their devices in racks. But what ...
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2answers
271 views

Rack server with NVidia or ATI GPU

For testing our software product we need to generate raster images on a machine with a ATI or NVidia Workstation graphics adapter. Currently we keep a external desktop machine connected to the rack ...
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1answer
252 views

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 ...
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1answer
332 views

Experiencing lower inter-rack ethernet speed compare to that of intra-rack

I have a cluster with 32 machines. The first 25 machines are on the first rack and the rest 7 machines are on the second rack. Each rack has a 1Gbps Ethernet switch. The network communication between ...
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1answer
338 views

What is “Node Composing” in Intel RSD?

Intel Rack Scale Design (RSD) has some concepts like "Disaggregated Hardware" and allows "Node Composition", but I am not able to find what exactly this is or how it works. EG If a rack has 4 servers,...
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1answer
37 views

Can an OS utilize all 4 nodes (4 x 2(22 core) CPUs=176 cores) in a server rack like C6320?

Are the 4 nodes in the C6320 utilized as 4 different sets of CPUs in a hypervisor?Or can they be all used under one OS? Can all of them being used in a 22 x 8 = 176 core system in say Windows?
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1answer
777 views

Using an earth bonding plug for grounding server rack enclosure

Can an Earth Bonding Plug be used to connect a server rack enclosure for the purposes of electrical grounding from a safety perspective? I've read How do I ground a network switch? (among other ...
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1answer
2k views

Are Rack-Servers always loud? [closed]

So, I'm thinking about getting a rack server (one blade) at home for stuff like gameserver, rendering, webserver, cloud etc but I'm worried about the loudness of the fans. I've only seen one single ...
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82 views

19" network rack shelf depth?

I am wishing to buy a network wallmount 19" rack, with a gross depth of 400mm. How can I know in advance what is the maximum depth of a shelf and what should be the minimum free space between the end ...
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2answers
46 views

Mounting equipment that only occupies half the depth of the cabinet?

I'm a bit naïve at all of this (sorry!), but I have to install a bunch of equipment in our co-location facility. We have a switch that only occupies half the "depth" of the cabinet. How do I mount ...
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2answers
2k views

Is there a best placement of hot hardware in a rack to maximize convection cooling for the whole rack?

To maximize convection cooling in a rack, does it make a difference whether the hottest items are at the top or bottom? If so, which produces the most cooling and why? Please limit answers to ones ...
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3answers
326 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 ...
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1answer
93 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
2k 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
51 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 ...
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1answer
39 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 ...
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1answer
100 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 ...
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1answer
542 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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1answer
66 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 ...
2
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1answer
192 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: ...
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0answers
6k 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 ...
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2answers
375 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 ...
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0answers
450 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 ...