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Is there a single power solution to run multiple NUCs off a single power source?
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Jan 6, 2021 13:41
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Gyshall posted:Is there a single power solution to run multiple NUCs off a single power source? They use 19V power bricks right? It may be a challenge finding a 19V supply that will output enough power for multiple. You could try to hack up an ATX supply with boost converters to get 19V from the 12V rail but I don't recommend it. At one point I used one of these 12V supplies (not exact one but same style) to power all my 12V gizmos instead of a strip with wall warts. It worked pretty well.
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Jan 6, 2021 15:03
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Gyshall posted:Is there a single power solution to run multiple NUCs off a single power source? How much do you want to spend? DC lab power supplies would work, but not cheap. Or could do something like this AC/DC supply in a case / box somewhere.
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Jan 7, 2021 02:45
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They take 12v-19v? iirc. There is even a company that will sell you a kit it you want it. Also a smattering of Reddit postings on it. freeasinbeer fucked around with this message at 03:27 on Jan 7, 2021 |
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Jan 7, 2021 03:02
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freeasinbeer posted:They take 12v-19v? iirc. There is even a company that will sell you a kit it you want it. Oh if they take 12 V, a high-end ATX supply would fit the bill just right. We used those to power our R&D / HPC backplanes for Opteron / Xeon / FPGA blades because they were so goddamned cheap, high current and still tightly regulated. Plenty of AC/DC 12 V bricks on Digi-Key that would work, and trim the voltage up a bit to compensate for harness loss.
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Jan 7, 2021 04:22
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I'm in the process of upgrading my "home lab" from a bunch of computers on lovely shelves, to a bunch of lovely computers on a rack. So, I looked around my area and only found very expensive 42U racks and I know for a fact that I don't need more than 25U (haven't for the last 15 years, not gonna start now). So I bought a 25U, open case, bare bones StarTech rack, brand new ( tiny bit less than the price of a used 42U IBM something rack). I assembled it today:  There is one little bit of an issue though:  Did I mount it wrong? Screwed the wrong screws in the wrong holes? Is it just to be expected for the holes to not quite align? Never assembled a rack before in my life so I don't quite know what's acceptable and what's not. If I did everything/anything wrong, now's the time to fix it, before I put anything in it. Volguus fucked around with this message at 02:35 on Jan 10, 2021 |
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Jan 10, 2021 02:33
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That ain't right. Check all the corners with a square to check your construction, and measure the distance from the edges to the holes to check star-tech's construction.
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Jan 14, 2021 02:56
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Is one of the brackets backwards?
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Jan 16, 2021 22:20
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Thanks for making me work on it. Once you mentioned the square, duh, :slaps-forehead: made sense. It took a bit but I made it now almost perfect:  Now that I got that covered, gonna have to get a rack mountable case to move my gateway into it (have a i3-4350 CPU on an ASUS MB, which I think it's micro-ITX). Been looking at https://www.newegg.ca/black-rosewill-rsv-z2600/p/N82E16811147180 as being decent enough for my needs. It mentions that it supports 9.6 x 9.6 Micro-ATX, and the case I have right now is 9.5 inches wide, which gives me hope that it's gonna fit just fine. Oh, and I assume I have to get rails as well, right? As hanging the case only from its front screws doesn't seem safe. Next I presume a power bar is in order. And a shelf for the switch. I thought mine was rack mountable, but it turns out that I'm wrong and it's only 1ft wide. On a shelf it goes (unless I determine that getting a rack mountable 1GB switch is cheaper.). Volguus fucked around with this message at 01:10 on Jan 18, 2021 |
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Jan 17, 2021 23:20
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Volguus posted:And a shelf for the switch. I thought mine was rack mountable, but it turns out that I'm wrong and it's only 1ft wide. On a shelf it goes (unless I determine that getting a rack mountable 1GB switch is cheaper.). I've seen super-wide "ears" for mounting smaller (and lighter) switches in racks. You might could go that route.
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Jan 18, 2021 05:48
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quote:this AC/DC supply Thought Angus had found some more new material written with Malcom before he passed; disappointed 😢. #PWER UP AMERICA!!!
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Jan 18, 2021 19:44
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I need some help, maybe someone can direct me: I have a 21 year old that isn't in college because of Covid. Typical for right now maybe. I got the idea that I should build a homelab box (or buy one) for my kid to get down and dirty with admining linux and whatever else. I could of course just buy whatever PC and use that but I figure I should get some real enterprise hardware so he can dive into that world. I'd love some recommendations for a retired enterprise rackmount server type box. I know the fan noise can be a real pain, and although the box would be living in my garage, I still do things in said garage and would be unhappy if there was a vacuum cleaner noise raping my ears all the time. Also, a non-extreme amount of power usage would be nice. If it matters, I'd prefer something not extremely old. Like a decent amount of memories, maybe 64GB. Probably aiming at Linux rather than Windows. Many thanks!
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Jan 20, 2021 17:51
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No reason why you couldn't get to tinkering with old off lease PCs but there are a host of good servers you could get for pretty cheap. Power efficiency obviously will be a bigger compromise but many 5-7 year old servers can be had for under $300. I've used Labgopher to hunt stuff down before.
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Jan 20, 2021 18:09
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redeyes posted:I need some help, maybe someone can direct me: Buy your 21 year old an account and let us give him the brainworms. We could also give homelab advice too, I suppose.
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Jan 20, 2021 18:13
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What about a modern atom chip? Maybe the C3700 series? Those really sip power and come in an integrated chip and board combo. They also run really quiet since you don’t need a powerful fan for them. Just pop them in a 3 or 4U rack so you can get bigger fans with lower RPMs. Something like this: https://youtu.be/J9pHMSaHhiI
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Jan 20, 2021 18:36
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I would buy an i5/i7 SFF PC (not the super tiny ones) and put 16GB of RAM in it, and two cheap SSD's. Dell 7010 for example Install vmware esx on it, play with VM's to your hearts content. Add a dual-port NIC from eBay for $15 and you can use it to do pfsense etc Another good one to buy are the really small computers, like a Lenovo M73  You can't put as much RAM in them, and they usually only hold a single drive, but they are cheap, small, quiet...good for plopping Linux or whatever on. We gave a bunch of them away at work when we did a hardware replacement. Also kind of nice if you have a couple of those and then a $50 24 port gigabit switch (hp 2530 or something), you can play with vlans and all that Basically just look for cheap dell/hp/lenovo business computers I'd say the only thing you get from using a server vs a desktop is capability to add a ton of drives in RAID (which will probably be expensive to buy) and you can use idrac/ilo cards. They're usually loud, slow, blah blah. just generally annoying
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Jan 20, 2021 18:56
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Bob Morales posted:I'd say the only thing you get from using a server vs a desktop is capability to add a ton of drives in RAID (which will probably be expensive to buy) and you can use idrac/ilo cards. They're usually loud, slow, blah blah. just generally annoying Agree with all of this, and would add that large-scale data storage isn't done on RAID anymore, anyway. It's all distributed filesystems. Also, what does the 21 year-old want, anyway? Are they interested in network/systems engineering?
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Jan 20, 2021 19:19
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Bob Morales posted:I would buy an i5/i7 SFF PC (not the super tiny ones) and put 16GB of RAM in it, and two cheap SSD's. Dell 7010 for example I guess it depends on what he wants to do. If he's looking to be getting experience with Enterprise hardware including things like being able to turn on servers from the off state through the network interface then he will need more than just a consumer computer with a server installed on it. I don't think you need to spend a lot of money on the Enterprise hardware. if you're not deploying something for real it doesn't really matter as long as you have enough RAM to run as many VMS or containerized applications. but if you want to be able to do things like hypervisor clusters or SAN or NAS setups than he may need something more. Nitrousoxide fucked around with this message at 19:54 on Jan 20, 2021 |
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Jan 20, 2021 19:29
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Dell USFF 3050: Can squeeze 16-32GB of RAM in it, a decent i7, an M2 and a 2.5" SATA, and you can get them cheap. https://www.ebay.com/itm/dell-optiplex-3050-micro-No-HDD/393091478140?hash=item5b8613f27c:g:pcEAAOSwKDlf-7yA If you want an actual Enterprise server, find a 2U Dell R710/R720, you can get them for under $300 and they are very expandable.
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Jan 20, 2021 20:22
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Big fan of the small form factor boxes for home labs. I've got a Lenovo m75q and an HP ProDesk 600 G5 SFF, migrating away from a couple aging NUCs.
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Jan 20, 2021 20:34
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Wasn't sure which thread this question belonged in, seemed like homelabs might be the right place? I'm building a little 1U personal server for colocation. Ideally a 200W system to minimize the monthly. Hoping to get 6+ years out of it, and specs wise I think this should get me there. Maybe pushing it on the life of the drives but they won't be storing anything mission critical. Here's what I was thinking: 
I wasn't sure about cooling for systems like these, maybe swap the E-2288G (95W) for E-2278G (80W) if that's an issue? I figured since I'm gonna have it for awhile, might as well get the top dog CPU it supports for a $50 difference. Never used Wiredzone before but they seem to have good selection & prices. EDIT: Turns out this system doesn't support 8 core CPUs! Had to swap the E-2288G for a E-2268G 6 core CPU. fletcher fucked around with this message at 21:13 on Mar 6, 2021 |
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Feb 24, 2021 04:18
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fletcher posted:Wasn't sure which thread this question belonged in, seemed like homelabs might be the right place? I'd just point out you can get a Threadripper with the same core count for half that cost, otherwise its a nice setup. For $100 less you can get the 12 core Threadripper, yeah it'll be more power consumption, but should give you more bang for your buck.
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Feb 24, 2021 16:02
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CommieGIR posted:I'd just point out you can get a Threadripper with the same core count for half that cost, otherwise its a nice setup. For $100 less you can get the 12 core Threadripper, yeah it'll be more power consumption, but should give you more bang for your buck. Thanks for the suggestion! Looks like the 1920X has a TDP of 180W and if I go from 200W to 350W on the build it will cost me an extra $40/mo with the colo, so it wouldn't be long before the $100 in initial savings is eaten up 
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Feb 24, 2021 20:00
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fletcher posted:Thanks for the suggestion! Looks like the 1920X has a TDP of 180W and if I go from 200W to 350W on the build it will cost me an extra $40/mo with the colo, so it wouldn't be long before the $100 in initial savings is eaten up Fair enough, its a nice build overall then!
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Feb 25, 2021 01:03
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fletcher posted:Wasn't sure which thread this question belonged in, seemed like homelabs might be the right place? Last time I looked into doing something similar (1u with 4 big LFF drives) I came to the conclusion that just getting a new HPE stock config Smart Buy and just adding RAM after the fact. Also it's always worth Googling to see how much these units actually draw in power, people tend to massively overestimate what their power usage will be Just because a server comes with a 500w PSU doesn't mean it's expected to pull that much power, some of that is extra capacity for the people pulling 75w on each pcie slot while at full cpu load Also, if I can ask, who will this be colo'd with text editor fucked around with this message at 18:08 on Feb 25, 2021 |
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Feb 25, 2021 18:01
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text editor posted:Last time I looked into doing something similar (1u with 4 big LFF drives) I came to the conclusion that just getting a new HPE stock config Smart Buy and just adding RAM after the fact. What is "HPE stock config Smart Buy" ? https://dedicated.com/los-angeles-colocation is the colo I was looking at. Since the plan is for 1A/208V I figured the best way to guarantee I am under that is with a 200W build.
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Feb 25, 2021 19:19
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lol HPE's website shows their DL servers 'fulfilled by TigerDirect'
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Feb 25, 2021 19:26
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fletcher posted:What is "HPE stock config Smart Buy" ? HPE has a "Smart Buy" line that they sell through a handful of partner channels ( I believe CDW, Ingram Micro, various VARs) that are cheaper than equivalent servers sold on their main site buy a bit, but come with a set of fixed configs and little variance on warranty offerings beyond simple part replacement
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Feb 27, 2021 01:09
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fletcher posted:Wasn't sure which thread this question belonged in, seemed like homelabs might be the right place? Judging from the storage configuration, you've got a little off-site NAS type thing going -- I did something similar but w/ a MiniPC (ASRock DeskMini H310) to co-lo at EndOffice for cheap. It only takes 2.5" drives though, so I put a pair of used datacenter 7.68 TB SATA drives in there. ESXi host w/ pfSense firewall (WireGuard / OpenVPN endpoints planned), FreeNAS storage VM and then Fedora VM for running files and services. I think they do Synology / QNAP hosting too if you want, so you could get one of the little 2 bay guys and ship it to them if you don't care about the CPU power as much.
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Mar 2, 2021 21:08
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 Finally got a Rackmount KVM that actually included rails.....but no power supply.
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Mar 3, 2021 23:20
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CommieGIR posted:Dell USFF 3050: I have a couple of i7/16GB 3070s that work great. One is my esxi host that handles pihole, milestone, and my unfi controller. It will likely have a short life, the fan on it is going quite a bit due to the nvr CPU load.
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Mar 5, 2021 11:21
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movax posted:Judging from the storage configuration, you've got a little off-site NAS type thing going -- I did something similar but w/ a MiniPC (ASRock DeskMini H310) to co-lo at EndOffice for cheap. It only takes 2.5" drives though, so I put a pair of used datacenter 7.68 TB SATA drives in there. ESXi host w/ pfSense firewall (WireGuard / OpenVPN endpoints planned), FreeNAS storage VM and then Fedora VM for running files and services. Oh very interesting! Thanks for sharing. I wish they had a west coast presence! Yup part of what this server will be doing is lite NAS duties but some other stuff that is latency sensitive so I wanna keep it closer to home. Unfortunately I missed that the server only supports 6 core E-2200 CPUs so now I gotta return the 8 core one I got. Oops!
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Mar 6, 2021 01:56
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Doh! I missed that the SYS-5019C-L only supports 6-core E-2200 CPUs. Ordered a E-2286G, hopefully I can return the E-2288G still Wiredzone policy is all sales final on CPUs but the sales guy said he'd put in a request to the manufacturer.
fletcher fucked around with this message at 21:18 on Mar 6, 2021 |
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Mar 6, 2021 21:16
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I'm in the market for a used ~12U cabinet and a rackable ups. Is there a better place than craigslist and ebay to trawl for these?
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Mar 12, 2021 20:08
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The Milkman posted:I'm in the market for a used ~12U cabinet and a rackable ups. Is there a better place than craigslist and ebay to trawl for these? I recently found out about /r/homelabsales
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Mar 12, 2021 20:11
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The Milkman posted:I'm in the market for a used ~12U cabinet and a rackable ups. Is there a better place than craigslist and ebay to trawl for these? Honestly? Facebook Marketplace is flooded with server cabinets. Had more issues finding a decent UPS.
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Mar 12, 2021 20:11
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If you are hardcore you can make your ups from cheap lithium cells, a bms and an inverter. I follow https://www.youtube.com/user/greasybrothers/videos .
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Mar 12, 2021 20:25
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fletcher posted:I recently found out about /r/homelabsales Thanks I'll keep tabs on this CommieGIR posted:Honestly? Facebook Marketplace is flooded with server cabinets. Had more issues finding a decent UPS. Oh right I forgot that's a thing now Perplx posted:If you are hardcore you can make your ups from cheap lithium cells, a bms and an inverter. I follow https://www.youtube.com/user/greasybrothers/videos . I am not hardcore and the local fire department appreciates my cooperation in this matter
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Mar 12, 2021 23:05
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Post your sweet homelab setups in The Traveling CCircus Show, in SH/SC for a limited time! https://forums.somethingawful.com/showthread.php?threadid=3946255
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Mar 16, 2021 06:02
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What is everyone using for monitoring these days? Prom/Grafana?
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Mar 27, 2021 01:18
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