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One of these days I might actually succeed in sourcing a UPS in Denmark.  EDIT: Of course, part of the issue is that I'd like to have one that can be rack-mounted (for when I eventually get a rack), and aside from the power requirement (I'm looking at ~1500VA at minimum), I need it to be line-interactive. BlankSystemDaemon fucked around with this message at 17:32 on Nov 14, 2021 |
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Nov 14, 2021 17:25
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What is a line-interactive UPS? Edit: oh. A line interactive UPS has a voltage regulator that monitors the current passing through the ups, providing a floor and a ceiling for current passing through and augmenting or restricting flow as necessary. If the incoming current is outside of a given range then the UPS cuts over to battery-only. Contrast this with online UPSes that convert an incoming current from AC to DC to AC ensuring that the AC that reaches the device is perfectly clean and within operating spec. Apparently, online UPSes are top of the line and very expensive whereas line-interactive UPSes are a great trade off between price and performance. Now I know that. Agrikk fucked around with this message at 18:09 on Nov 14, 2021 |
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Nov 14, 2021 18:00
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Yeah it took me ages to find the small UPS's I have, I'd love a heavier duty one but people want outrageous money for them.
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Nov 14, 2021 18:40
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Has anyone ever converted a home closet to a server closet? I have a 2nd floor laundry room with a whole house fan in it. There's a closet with a bifold door in it. I'm thinking about having a contractor drop a new circuit to there and replace the door with a normal one and throw an airframe on it. But not sure what kind of questions I should be asking the contractor or how this has turned out for anyone else. The plan would be to throw a full rack in there and move some equipment out of a back bedroom.
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Nov 14, 2021 19:42
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Hughlander posted:Has anyone ever converted a home closet to a server closet? I have a 2nd floor laundry room with a whole house fan in it. There's a closet with a bifold door in it. I'm thinking about having a contractor drop a new circuit to there and replace the door with a normal one and throw an airframe on it. But not sure what kind of questions I should be asking the contractor or how this has turned out for anyone else. The plan would be to throw a full rack in there and move some equipment out of a back bedroom. Then I cut four holes in one side and installed some fans, and did the same in the other side. Then wired up the fans to create a windtunnel. Then lined the inside with foam. With the doors closed, the two-thirds room can can fit 8U in full-length, while power cables, power distributor, and everything is tucked into the one-thirds room. EDIT: And to make things a bit easier on myself, I installed two solid wood-planks on the bottom and screwed 8 wheels to it, so it can be moved if need be (although I don't plan on doing so when the disks are spinning, because the gyroscopic precession is not gonna be healthy). BlankSystemDaemon fucked around with this message at 20:41 on Nov 14, 2021 |
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Nov 14, 2021 20:38
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In my previous life as an MSP I saw SO MANY closets (poorly) converted to server “rooms” and without fail the one thing that was always lacking was proper airflow and cooling. It doesn’t take much equipment to drastically raise temperature so I guess my only suggestion is plan for proper airflow both in and out. All my hardware sits unconstrained in an unfurnished basement that is perennially cool-ish so I haven’t given active cooling a second thought, but airflow might now suffice depending on the amount of hardware you have. Very little actual advice here, only brief terrifying flashbacks to walking out of “server rooms” in tiny mom and pop businesses and having this conversation  
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Nov 15, 2021 13:35
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My gear is in my garage and my garage gets HOT during the summer from the combination of ambient temperature and the gear, despite a big exhaust fan I had installed in the wall. In august I have to leave the garage door open a crack and open the garage back door to set up a cross breeze. Even now when it’s 40F outside my garage is a toasty 75F. I have given serious though to somehow ducting the hot air into the house to help with the heating, but anything I consider looks ridiculously ugly and/or kludgy.
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Nov 17, 2021 15:37
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It gets hot in the workroom where my gear sits, but its about ~68-72 in the winter. The exhaust fan on the hot side of the rack provides enough heat removal.
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Nov 17, 2021 16:36
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So, I'm an idiot: I kept trying to treat the MX7000s MX7116 Fabric Expander modules as QSFP Switches. They are not switches. They are fabric expanders. To convert them to Ethernet they have to be plugged into a supported Dell EMC Switch either within the chassis or at top of rack. This is how CISCO does this with the UCS chassis as well. D'oh. I went and grabbed a Nexus 3000 switch to try to troubleshoot before it dawned on me.
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Nov 19, 2021 18:21
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Not even sure this is the right thread, but it came up near the top searching on Google when it comes to Influx and SA. So anyway... Version 1.x used InfluxQL and seemed pretty zippy. Version 2.x insists on moving to Flux and is deprecating InfluxQL. I get the feeling that Flux is just a pig, that blindly runs through all timeseries data in the given range and runs the defined filter functions on it on each drat row, whereas InfluxQL goes more database like at the job and uses indexes or something in background to keep the amount of data to sift through to a minimum (e.g. if the timeseries data is multicolumn, like for instance Home Assistant defining entity and measurement IDs). Certainly feels that way, because a plain InfluxQL queries run way faster than its direct Flux equivalents on larger date ranges. Am I wrong?
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Dec 20, 2021 02:19
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BlankSystemDaemon posted:One of these days I might actually succeed in sourcing a UPS in Denmark. I've had really good luck with the liebert GXT3 and GXT4 (for always-online) and the PSI5 (for line interactive). Have to watch ebay for a while for a good price but they're worth it. All rack-mountable and expandable batteries, etc... Network UPS Tools supports them.
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Jan 8, 2022 16:01
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Rescue Toaster posted:I've had really good luck with the liebert GXT3 and GXT4 (for always-online) and the PSI5 (for line interactive). Have to watch ebay for a while for a good price but they're worth it. All rack-mountable and expandable batteries, etc... Network UPS Tools supports them. 
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Jan 8, 2022 17:55
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Yeah it would almost be worth just finding a UPS sans the batteries and ship it empty, then get batteries locally.
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Jan 8, 2022 18:01
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CommieGIR posted:Yeah it would almost be worth just finding a UPS sans the batteries and ship it empty, then get batteries locally. Do this anyway cause good chance one or more of the batteries are near dead in a cheap old used unit. They're very easy to replace.
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Jan 8, 2022 22:55
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I wish for an double conversion unit that's also silent, but who am I kidding, because physics.
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Jan 9, 2022 01:33
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I've considered one of those MPP Solar hybrid inverters + lifepo4 or used li-ion from cars instead of a classic UPS. Lead acid is dead, and should remain so. Bonus points: can add solar panels 
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Jan 9, 2022 10:11
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I got a patch panel!! e. And more shelves for the servers which I didn't post about apparently. I also took the time to manage the cables. Previously they were draped and coiled over the backs of the servers, which I'm sure was affecting air flow. Still messy, but a lot better. 
Actuarial Fables fucked around with this message at 23:13 on Jan 9, 2022 |
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Jan 9, 2022 21:16
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I've got 3 Raspberry Pi 2s right now, one is serving as a print server for my house and Retroarch but the other two I'm not sure of what to do with. I've already got a file server and don't think these work well for storage anyways. I'd like to possibly use them as a home project for Kubernetes and Docker stuff but was curious what sort of uses people have gotten out of their older ones.
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Jan 10, 2022 05:42
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Pi-hole DNS server
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Jan 10, 2022 06:00
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Should have said I have done a PiHole but it got annoying to manage as it would seemingly break random apps or sites for people. I love the project but didn't like how fragile it seemingly made my network for everyone else lol
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Jan 10, 2022 06:25
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It sometimes annoys my wife that she can't click a sponsored link in her goog results or whatever, but I think that is a pretty small price to pay.
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Jan 10, 2022 10:10
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My wife has her own VLAN/SSID for that reason
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Jan 10, 2022 12:07
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There is a home assistant integration with pi-hole that includes on/off. I set up a toggle in home assistant so my wife can turn it off if she runs into a stupid inline ad she wants to click. And an automation that turns it back on after 15 minutes.
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Jan 10, 2022 12:30
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Is there any kind of current hotness for an all-in-one IPAM/DNS/DHCP server that I can deploy on my network to have some kind of more granular control over DNS and DHCP integration, as well as more of a unified dashboard of subnet allocation etc My biggest pain with labbing so far has been that I rarely use a bunch of the things I spin up regularly so when I get around to trying something new I always just kind of spin up new VMs with some throwaway IP which is fine until it conflicts with some other IP I provisioned previously and now I have to manage my ssh kown_hosts, or just worry about bringing up two things that might conflict, etc. I have my edgerouter set to automatically register DHCP with my synology's DNS server which is good but I don't typically use DHCP on my Lab network. I was thinking of enabling just that but before I just resort to Lab DHCP (which I guess technically won't solve my ssh problem in some cases but is probably still the way to go) I wanted to see if there was a better way of handling this. Like I'm looking in my synolgy's zone file and there's just random IPs from raspberry Pi's i've booted, VMs I created a year ago, all mixed in with my phones and home stuff. A lot of it is a mess of my own making so I guess I want to plan out how to separate things out but I'd love to have an at-a-glance view of my subnets and domains etc. Lots of words, not sure I articulated this correctly, hopefully someone gets my meaning but happy to expand on or re-phrase what I'm hoping to achieve if necessary.
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Jan 10, 2022 14:28
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Gyshall posted:My wife has her own VLAN/SSID for that reason oh my god lol n^thing pinhole, but you'd be way underutilizing a single pi by only running that on it.
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Jan 10, 2022 15:16
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It turned out that the fiber install needed 2U total and I only had 1U free on my wall mounted setup, so I went ahead and got a bigger rack... Now I think I need to get my NAS in there, get a bigger UPS, and move my colo server back home. Cleaning up the cables is definitely on the list as well, things are quite messy right now after moving everything around. Ventilation in the closet is not great...so might have to look into a mini-split this summer. What have I done...
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Jan 11, 2022 02:24
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Hey look what I did over the weekend. I'm being lazy and running my old windows machine that has PLEX on it off straight of the SSD as a VM. Eventually I'll set that up properly. I have two piholes. One in a VM and one on an actual pi.
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Jan 11, 2022 02:56
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fletcher posted:It turned out that the fiber install needed 2U total and I only had 1U free on my wall mounted setup, so I went ahead and got a bigger rack... I'm jealous of your perforated panels. My cabinet has solid side and rear panels and a glass front panel, which is great for putting decals on, but I'd rather have some more air coming in.
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Jan 11, 2022 19:55
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cage-free egghead posted:Should have said I have done a PiHole but it got annoying to manage as it would seemingly break random apps or sites for people. I love the project but didn't like how fragile it seemingly made my network for everyone else lol I use mine for: - PiHole - Home Assistant - AirPlay receiver Home Assistant integrates with the PiHole so you can enable/disable like you would a smart light switch. Reduces need for janitoring if anybody can easily flip it off.
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Jan 11, 2022 20:38
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If you have a homelab that can run unbound or nsd with void-zones-tools, why are you using pihole?
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Jan 11, 2022 21:58
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I'm downsizing from a big fat rack and going to get rid of my Dell R620. It's beefy enough that I probably used like 1% of its resources. Thinking of replacing it with two or three USFF desktop PCs I can turn on or off as I need. Any thoughts on the immediate contenders? Looks like Lenovo TC M700 or Optiplex 3050s are both fairly "inexpensive" for a four core 16gb configuration which is probably enough to get me through my ultra basic VM needs. At $3-400CDN for a decent model I can always scale out hardware and since they're low enough power I'm not terribly worried about leaving them on or spinning them up or down as I need them. Onboard storage is pretty anemic but I can always beef it up with a 2.5 or 5gbe ethernet-USB3 dongle and use a (somewhat) speedy NFS backing store on my Synology. Not sure what I'm going to do with the R620. I guess it's going on craigslist or kijiji but I always hate to part with hardware 
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Jan 12, 2022 14:35
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Martytoof posted:I'm downsizing from a big fat rack and going to get rid of my Dell R620. It's beefy enough that I probably used like 1% of its resources. Thinking of replacing it with two or three USFF desktop PCs I can turn on or off as I need. Can definitely vouch for the Optiplexes, I have a 780 and a 3070 and they've both been great. Might be worth including the HP ProDesk series (specifically the 400 G4) in your search too, they're basically the same thing as the Optiplex and TC.
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Jan 12, 2022 15:17
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Martytoof posted:I'm downsizing from a big fat rack and going to get rid of my Dell R620. It's beefy enough that I probably used like 1% of its resources. Thinking of replacing it with two or three USFF desktop PCs I can turn on or off as I need. What about the 'regular' desktop Dells? You can still run an i7, 4 RAM slots (64GB), you'll get 3-4 SATA ports plus you can always stick SSD storage in the PCI slots. You can also throw a 4-port NIC in a slot.
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Jan 12, 2022 15:18
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If you have room, the SFF versions have low profile pcie and better storage solutions.
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Jan 12, 2022 15:21
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Not sure how to quantify the power draw. I actually have access to two SFF optiplex 9020s at work that I could bring home, but I think they may have higher TDP i7's which are both good and bad in the sense that they'd probably perform better and have a higher core count, but also draw more. I'm also trying to go as compact as possible and fit it all into a smaller "network" style wall mount rack. I'm actually OK to use the SFF (vs USFFs) desktops if I can lug them home, but I do like the idea of an ultra (relatively) low power draw and space consumption thing, where I just have a stack of two or three of these down the road sitting next to my Synology on a rack shelf. So yeah, no real argument against them other than "if I can go smaller I think I'd like to", given (and I can't stress this enough) how infrequent and light my lab usage is. A few 2vcpu/4gb ram VMs at most, and I tend to blow those away after a day or two. Forseeably repurposed as a tiny kube cluster for some training on that technology. 4core i5/16GB is probably plenty if thats what they max out at. And I'll be straight up honest -- I kind of like the novelty of a tiny USFF PC and want to try one.
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Jan 12, 2022 15:26
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BlankSystemDaemon posted:If you have a homelab that can run unbound or nsd with void-zones-tools, why are you using pihole? Because I am very stupid when it comes to networking and I'm just happy that pihole works enough.
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Jan 12, 2022 16:02
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Martytoof posted:I'm downsizing from a big fat rack and going to get rid of my Dell R620. It's beefy enough that I probably used like 1% of its resources. Thinking of replacing it with two or three USFF desktop PCs I can turn on or off as I need. Mods? Mods! On a very slightly more serious note, why not see if you can sell it in SA-Mart and perhaps mention it in the NAS thread? I'm sure there's goons looking for an entry point into server gear. Crunchy Black posted:Because I am very stupid when it comes to networking and I'm just happy that pihole works enough. Despite being an acquaintance of Michael, I'm not being paid and am just a fan of his books. BlankSystemDaemon fucked around with this message at 16:54 on Jan 12, 2022 |
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Jan 12, 2022 16:45
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Crunchy Black posted:Because I am very stupid when it comes to networking and I'm just happy that pihole works enough. This is maybe a better piggyback question for the home networking thread, but I stopped running a pihole and just pay >$3 month for NextDNS unlimited queries. In a house with 12 devices or so (including tablets, phones, and laptops for 3 along with streaming server and a desktop) always online I’ve been nothing but happy with not having to deal with configuration and replacing micro-SD cards. The main reason I posted this here, though, is because even though I had my pihole working fine I saw it brought up ITT just now. Am I losing out by outsourcing my DNS service, even though (I think?) that’s all my pihole was doing anyway? Am I losing some functionality or type of security by letting an outside entity provide the service? I don’t run any VPN or anything either, and the cost is negligible monthly even on a fixed income. Edit: Another question maybe not at the scale Homelabs deal with: I have Wireshark downloaded, but haven’t really looked into it as far as working to learn how to use it. Would this be overkill or even necessary for a small home network user to learn? As far as I know I’m not part of a botnet or even particularly a target with valuable files. Am I overthinking security needs for being online in 2022? DerekSmartymans fucked around with this message at 17:37 on Jan 12, 2022 |
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Jan 12, 2022 17:02
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Bob Morales posted:What about the 'regular' desktop Dells? You can still run an i7, 4 RAM slots (64GB), you'll get 3-4 SATA ports plus you can always stick SSD storage in the PCI slots. You can also throw a 4-port NIC in a slot. Yeah, I recommend the USFF Dell/HP machines. Socketed CPU, Laptop RAM DIMMs, usually supports both a 2.5" and an M2 SSD, plus USB 3.0 for external drives. BlankSystemDaemon posted:Wait, is downsizing racks allowed? Number big must go up!! Needs more Blade chassis.
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Jan 12, 2022 17:38
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Big fan of the Dell USFF, my esxi host at home is a 7040. Fits nicely inside the gun safe and doesn’t take up much room, plus it doesn’t need a huge battery backup. Since it holds the NVR vm I had to do some trunking setup in esxi for the camera vlan instead of taking the easy route of a second usb3 NIC, I only have a single Ethernet passthru built in.
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Jan 12, 2022 19:11
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