/r/datacenter

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Rack and stack! News, comments, tools, and questions about servers, network hardware, DC infrastructure, industry jobs, and more are welcome here. If you have a question about personal servers, data storage, or hardware smaller than several racks please try /r/homelab or /r/DataHoarder instead

For discussions and articles about high-availability, datacenter facilities, networking, high-end storage, blades and other stuff that belongs in racks.

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/r/datacenter

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2

Running additional power from Power Distribution Cabinet to racks

Hello,

Since we are adding additional HPC servers to our data center, we need to run additional power/receptacles (208 v , 3 phases) to the new racks. The racks will have standard PDUs.

I was told by the lead technician that manages our UPS from Vertiv that the new run should be a standard job and no interrupted of power. The job will be done in house by our facility (its been a month now and they haven't looked).

Just asking here if anybody know such a job will require shutdown of power in our data center? Currently the cabinet has 4 panels and only using 25% of the amps.

I know this is a general question. If this is similar to home, where I just add new breakers into the panel and run my wires to the new room of the house. Then once it is done, just turn the breaker on :).

On a side note:

Many years ago when we setup the server rack, we placed dual PDUs at each rack (if the server has two power supplies, we assigned to different PDU). Each PDU runs to a different panel on the Power distribution cabinet.

Thanks for reading.

https://preview.redd.it/5mtu1f0i6l4e1.jpg?width=974&format=pjpg&auto=webp&s=73fb845e7cd534c71d90694ed25eb987e70ebc84

https://preview.redd.it/tjfqczbt4l4e1.jpg?width=480&format=pjpg&auto=webp&s=7bfd7e19583170f1fd6b3a607e34a5180e46cfd9

8 Comments
2024/12/03
07:32 UTC

0

Data Center Clients

Where does a person find clients to fill a data center site? 2.5 to 10mw

Is there a place, service, broker?

I have PPA’s in place but want to find the right client to design build the facility for.

Thanks in advance.

4 Comments
2024/12/03
00:29 UTC

6

Is my AC killing my RAM?

We have a "datacenter" in an old classroom with a large in wall AC unit and one duct that blows directly at our ESXi hosts from about 6 feet away with no diffuser. The unit is not an appropriate unit for several reasons that I wont get into but overall I suspect that its slightly oversized. The issue is that we have had to replace 6+ DIMMs last year (around this time) and we are again this year seeing high failure rates of uncorrectable ECC errors. Typically a few within a week. We are in Colorado so humidity is generally low but during the summer, we have a swamp cooler for the rest of the building though the DC is sort of sealed off... I will add the servers are about 4 years old but this seems to be an ongoing thing.

I suspect the AC cycling causing thermal expansion and contraction and dryer air are the culprits but everyone thinks i'm just making stuff up... I'm just sick of hosts crashing and making Dell replace the DIMMs.

14 Comments
2024/12/02
16:27 UTC

17

Onsite Natural Gas Power Generation for DC’s

What have ya’ll been hearing? I have seen this idea come up over the past couple of weeks. As there is an obvious power crunch I have been speaking to some that are exploring generating power onsite via natural gas. Not so much generators more like natural gas turbines. I know it’s not “clean” but at the end of the day, it’s not coal and it’s efficient. I think it is at least 7+ years until we start seeing nuclear SMR’s being put to use commercially.

Do you think this is a viable solution

26 Comments
2024/12/02
15:10 UTC

1

Microsoft, After final interview? What's next?

Hello.

I recently had my 3 interviews with microsoft for a DCT position. During the interview they told me usualy it takes 2 weeks to get a reply.

Interview went Okish, the technical part were good and I tried to be the most honest and natural for the behaviour questions.

I had my final interview a bit more than 2 weeks ago.

Also, I noticed they reposted the job offer on their website last Friday.

Is it over for me? Do they ghost candidate if they don't plan to hire?

1 Comment
2024/12/02
12:12 UTC

5

AWS Ireland Datacenter Roles

Hi folks,

Have an interview lined up with AWS in Dublin as a PM. Just wondering what to expect day to day. What questions to ask etc.?

I assume there will be no remote working with amazons RTO mandate, not a big deal as I’m fully on site in my current role.

Job is apparently up as an L4/L5 my friend told me, anyone have a salary indication or what I should be asked for ish?

0 Comments
2024/12/02
11:14 UTC

3

Reached out to about L4 DCO position, what to expect?

Someone at AWS found me and referred me to an L4 DCO Tech position, they're pushing for me but I have no idea what to expect for the interview.

For reference, I'm working at a data center as a contractor and have been trying to get into IT for a while but I only have an associates currently and am working on other certs. I feel like this position is way above my experience personally but still want to try. Any resources or tips for what to expect them to throw at me?

3 Comments
2024/12/01
16:26 UTC

5

Sizing UPS

When sizing a UPS do I choose the power kVA rating that could supply the maximum demand of the IT loads only? Or do I assume that the external batteries connected to the UPS will need to be charged at some point while also supplying the max IT load demand, so I will need to have a larger UPS rating?

21 Comments
2024/12/01
13:12 UTC

1

What data center components are currently in high demand? Aside from the usual branded servers, storage, and switches, are there other niche or ancillary components that would be worthwhile to explore for manufacturing or business opportunities?

13 Comments
2024/12/01
10:16 UTC

13

What’s the largest network you’ve deployed? I just finished deploying a backbone network capable of 10Pb of bandwidth.

4 Comments
2024/12/01
05:21 UTC

4

How to get started in a DC environment?

I'm interested in a Data Center Critical Environment Support Assistant role. I have an Associate's Degree in Science and experience building and maintaining computers. I'm unsure if these skills are directly applicable to a DC environment.

I've been considering the Schneider Data Center Technician certification. Does obtaining this certification increase my chances of getting hired for this role?

12 Comments
2024/11/30
00:24 UTC

5

Should i do a data centre technician internship at Amazon?

Hi, I’m in my second year of university studying computer science while applying for internships in the UK.

I got an intern offer from Amazon to work in one of their data centres as a technician. The role is pure hardware (installing racks, switches etc) and not so much focused on software which I am pursuing. I’m still trying to decide if I should go for it or keep looking for a software engineering or solution architect related internship at a startup or a smaller company.

If I take the Amazon offer then the internship will only be a few months and I can resume my 3rd and final year after but if I take a software engineering role then I would opt for a placement year at industry thus delaying my graduation year by one.

I was also wondering if an internal transfer later on to software engineering or solution architect would be possible.

What do you guys think?

3 Comments
2024/11/29
20:43 UTC

6

Best noise-cancelling earbuds with Black Friday sale?

Hi all. I’m not a data center engineer, but I’m a field technician that will need to enter data centers to service equipment. Still relatively new at this job, and one thing I feel I need to get ASAP is a pair of noise-cancelling earbuds to make Webex calls (prefer no headsets because I am sensitive of headaches from them). What earbuds do you recommend that can handle the intensity of the fan noise? My boss says I can buy anything under $100 without questions, but anything above I’ll have to go through a few hoops to use the company card. Any help is greatly appreciated.

22 Comments
2024/11/29
19:42 UTC

13

DCTs that are working this holiday. What are you catching up on?

Theres gotta be a few of you guys playing a game or watching a movie today right? personally I took the time to swap pc cases on my home device and am going to focus on teaching myself web 3.0 development

18 Comments
2024/11/28
17:52 UTC

2

Who are the emerging neocloud (Other than Coreweave, Lambda Labs, Crusoe, and Nibius)

Per title, would greatly appreciate if you could answer my question above and share any interesting insights. Thanks very much!

2 Comments
2024/11/28
16:37 UTC

14

Could someone explain in simple terms whats Equinix bare-metal offering is and the implications of this shutdown?

Per title, I would greatly appreciate any insights/comments on this topic? I’m relatively new to the data center development field, so apologies if this question is too simple/obvious.

28 Comments
2024/11/27
15:46 UTC

4

Has anyone switched from Industrial/Constitutional construction (Civil Eng) to Datacenter construction? What's the learning curve?

Been working in Industrial/Constitutional construction sector for over 6 years and 2 years of it as PM, civil Eng degree, on the management end. The main issue I'm having is the income (obviously) can't compete and thinking of the switch.

Has anyone done the switch? What's the learning curve? What has helped you with the transition?

Lately I've seen some jobs popping and made me curious. I believe this is one of the few positions that is realistic path when switching with civil Eng degree.

4 Comments
2024/11/27
13:11 UTC

17

How to move on from data center operations?

I've been doing everything from rack and stacks, cabling, power, server troubleshooting/parts replacement, inventory management, various reports, some ups work, facility monitoring, and taken lead on larger projects from the time a customer steps in the building to the time we build their environment. I. An expert with copper, fiber, SFPs, tipping, splicing, troubleshooting, testing.

Been in this role for 6 years. Nobody from my department has been given a raise or a promotion. The environment is becoming toxic and I want out. I make 50k a year.

I'm at a loss of what to do next. Any advice?

43 Comments
2024/11/26
22:51 UTC

0

We’ve got to talk about the war

I’ve just been in a meeting discussing contingencies should this thing escalate out of control, which is possible. we’re well within range of medium range ordinance, and our government has just ‘involved itself’.

Is anyone else considering this or are we just unreasonably proactive?

22 Comments
2024/11/26
21:24 UTC

1

Any DC Project Managers (construction)?

What are your experiences in the job market? Do you struggle to find job? (Nordics region, or Northern Europe), how well are you being paid with 10yoe in PM + 1yoe as DC-PM. I'm in the point that I have +10yoe in industrial construction and 1yoe in Data center construction and I'm deciding if moving as Project Manager or other position in Project Development.

What do you think?

7 Comments
2024/11/26
18:21 UTC

2

What would your dream 1U/2U server look like?

Hey everyone 👋,

I recently started a design/research role at a company working in the data center space (keeping it anonymous due to NDAs).

We’re in the early stages of redesigning our flagship 1U and 2U servers from the ground up, and I’m diving into research to better understand common pain points and unmet needs in the market.

As someone new to this field, I’d love to tap into the expertise here. If money was no object, what would your dream 1U/2U server look like?

• What features or capabilities would it have?
• What would make setup, operation, and maintenance easier for you?
• How would you prefer to interact with it? (physically, remotely, visually, etc.)

Any insights or experiences you’re willing to share would be incredibly helpful. Danka!

28 Comments
2024/11/26
00:45 UTC

2

AWS Data Center Technician Role questions

A little bit of background on myself. I have 3 AWS certs(ccp,saa, and sap). Also have a couple projects on aws including my website I made. I've build a few pcs in my life and have used linux as my daily os for a year now. So I'm really comfortable in the CLI. I have no college degree btw or real world IT experience.

Amazon bought a data center not to far from me very recently in March. I went to a virtual job event for data center roles at the beginning of this month. About a week later they sent me a automated email about some of their data center roles. I applied to the Data Center Technician/Data Center Operations Role at the data center near me on Nov. 15

I haven't gotten contacted by a amazon recruiter yet. I've checked my job application and it still says submitted I'm assuming my application passed their initial screening process which assuming is probably ATS or some automated software.

My first question is when do you think I may get contacted by the recruiter? keep in mind this data center they bought in march so I would think they need some people.

My second question I guess would be amazons interview process ?

My third question would be what would I expect the daily tasks of the role be ? I guess that would depend on what level I would be interviewing for.

I know I'm getting a little bit ahead of myself but just wanted to ask some questions for those of you that have went through the process and have worked or working in the same role.

5 Comments
2024/11/25
23:29 UTC

0

DDR5 96GB 5600 M321RYGA0PB0-CWM

Looking to get rid of 10k pcs of Mem Module. Anyone know who could consume these?

2 Comments
2024/11/25
22:31 UTC

0

L4 DCT

For those L4 DCTs at AWS or if you know somebody that is,

  1. what does the day to day look like, is it more technical (break/fix, working on servers) or more leadership or is it half and half?

  2. Do you get an office?

  3. Also what devices do you get (laptop, work phone, etc)?

1 Comment
2024/11/25
21:12 UTC

0

Leak protection

Looking for suggestion how I can temporarily leakproof datacenter racks I have a new ceiling coming but want to protect/ drip seal my data center cabins

14 Comments
2024/11/25
16:31 UTC

4

Jumping to critical facilities

Hey guys, I’m a union electrical tester in NJ and I’m looking to make the jump to the facilities side of data centers. What should I expect in terms of schedule, pay and benefits? Which companies should be avoided?

23 Comments
2024/11/25
16:02 UTC

5

Curious about Supercapacitor UPS for Data Center

Hello everyone, I’m a newbie to this industry and currently researching supercapacitor UPS systems. Has anyone had real experience with supercapacitor UPS solutions from Eaton or Skeleton Technologies? I understand that supercap offer advantages like longer cycle life, lower maintenance, and reduced fire risk compared to LIBs or VRLAs. However, do supercap UPS systems work effectively in data center??

5 Comments
2024/11/25
07:20 UTC

7

Mechanical engineer DC

I spent 16 years designing and engineering HVAC systems for upscale residential and light commercial buildings. I'm growing tired of it. How can one enter the field of data center mechanical design? Much appreciation for the books and website recommendations. Thank you

5 Comments
2024/11/24
22:04 UTC

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