homelab

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I made a blog post about an old IBM server!

I made a blog post about an old IBM server!

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IBM xSeries eServer 346 #1 – First Look – Krafting's Lab

https://blog.krafting.net/ibm-xseries-eserver-346-1-first-look/

Away from home for months; homelab unreachable; now looking for UPS

Away from home for months; homelab unreachable; now looking for UPS

I'm currently traveling for months at a time and my homelab has become unreachable to me over VPN due to a unknown complication after a power outage.

Just as a learning experience for all, my mistake was that I set-up my VPN very far down the stack - as a wg-easy app inside TrueNAS SCALE's apps ecosystem. My very important reason for doing it was that way was that wg-easy allows for setting up client devices with a QR code...

Anyway, the NAS is not booting back up nor do the TrueNAS apps. I should've set my VPN up right at the front of the network - on my MikroTik router that also supports Wireguard. The funny thing is I was so happy that my NAS has IPMI and whatnot but now I can't even access it.

For now the NAS is kept powered on from what I know, it just doesn't boot. This should help prevent bitrot until I'm back. All important files are backed up on a 3rd party service.

It's a shame my Jellyfin and Navidrome inaccessible, but I'll live.


Now I'm thinking about buying an UPS so that this doesn't happen in the future. I'd like the UPS to be fanless and rackmount, so that limits me to ~700VA territory.

Devices in my homelab pull about 65W idle and spike to say 150W when everything is booting. ISP modem, router, POE+ switch, AP, NAS. I might add another 20W due to a Lenovo M920q in the future.

I only really care about NUT and graceful shutdown instead of long runtime on battery.

I was thinking about this: https://www.apc.com/us/en/product/SMT750RMI2U/

In my country I can get it with new batteries (no front panel) and a network card for NUT for a total of 180 EUR.

Would that work? Would you be afraid of leaving an UPS (it is kinda like a bomb after all) unattended an leaving your home for 6 months at a time?

Should I get a firewall appliance?

Should I get a firewall appliance?

I have a host name whose dns points to my home IP. I use this for game servers for my buddies. Should I be worried about my home IP being easily accessible like this, and should I get a physical firewall appliance to protect myself?

Servers are running Windows Server 2019 and Mac OSX.

I got an old Cisco AP and I looked inside!

I got an old Cisco AP and I looked inside!

Network setup help

Network setup help

Hey folks, I have a couple things I would like some advice on. Currently for my home network setup I have my ISP’s modem/router combo set to bridge port 1, and then some google wifi and points connected to that.

My goal is to get rid of the google home wifi and if possible my ISP’s modem/router combo (I don’t really need to replace my ISP if it makes it way more complicated) with something more open and flexible.

I have a couple dell optiplex micros I can use as a pihole/dns/whatever is needed, and I was thinking of picking up a couple of these for my WAP’s and then running the omada docker container to control them.

Would this be enough or would I also need something like openwrt running on another machine as well? If that’s the case I could also pick up this and install it into one of my dell machines so I can run some kind of router software.

TLDR- what would you buy in my situation given you only want to spend about $500 cad max on all the hardware to setup a network in your home lab?

Next up: Struggles getting my HBA to see SAS drives (don't think it's 3.3v or 512 vs 520). What should I try?

Next up: Struggles getting my HBA to see SAS drives (don't think it's 3.3v or 512 vs 520). What should I try?

cross-posted from: https://lemmy.world/post/16636012

Me again, back with another probably dumb question, but you beautiful bastards have been so helpful so far, I can't stay away!

I got 10x 10TB SAS drives from FB market place. They look like they're in good shape and the guy says he pulled them from the live server of a family member who passed. HGST. most/all are 2018.

I brought them home and tried to mount them one-by-one in an xpenology VM to smart test them (easiest place I had set up for SMART tests).

But most of my troubleshooting has just involved looking at the HBA menus in BIOS and seeing if the drives even show up. Currently only 1 seems to reliably.

and I got a weird mix of drive showing up fine, but others not showing up at all. I also got a couple drives that passed a SMART test, then when I pulled them and tried to remount them later, they don't even show up?

I tried using molex to SATA power adapters to rule out 3.3v, didn't help.

I don't think it's formatting because some of them mounted at least once and they all came from the same server.

I tried putting the HBA in another PCIe slot, plan to try the third slot tonight.

I have this HBA, confirmed in BIOS it's in IT mode: https://www.amazon.com/gp/product/B0BYZBNXBS/

(I'm having troubles finding a good manual for this board, by the way. there are flashing LEDs that may be trying to tell me something?)

and these breakout cables: https://www.amazon.com/gp/product/B07B9SBSVW/

I might try another HBA, rule out bad board. I plan to try the third PCIe slot tonight, try to rule that out...

What else?

They could be just bad drives, but the seller seemed genuine and they look like they're in good shape. He even pinged me after the sale to see how they worked out for me.. doesn't seem like a scammer.

Also, a couple questions: 1) these should be hot-swappable, right? and 2) what would happen if this PCIe x8 card is in a PICE x4 slot?

Thanks again. You guys have been great! :)

What can I make out of a Old Pentium D desktop?

What can I make out of a Old Pentium D desktop?

Hello homelabbers,

Recently I came into possession of an old Desktop PC. Its configuration is,

  • Pentium D 820, 2.8 GHz dual Pentium 4 core processor, supports 64 bit.
  • 512 DDR 333 memory
  • 90GB HDD
  • no graphics card
  • 3 PCI and 1 AGP slot

I was planning to put a ethernet card and use it as a router. It was to theown as garbage. Is what I am planning feasible or a good idea. Or it would be better as trash.

Sliding rack rails don't appear for work for my chassis. Any good suggestions for better ones?

Sliding rack rails don't appear for work for my chassis. Any good suggestions for better ones?

I’m a new homelabber, recently bought a SilverStone RM41H08 4U Chassis

My rack is wall mounted and this server is heavy AF to get into place when I need to adjust something.

All the reviews for the branded sliding rails that “work” aka rarely, are terrible.

I’m interested in any ideas people have for maybe DIYing a sliding rail set, or like a better universal rack? Literally anything please hahaha.

I’d even try cabinet rails or something if there’s a good resource on DIYing.

Thanks!

Links for reference: https://www.amazon.com/SilverStone-Technology-Rackmount-Hot-Swappable-RM41-H08-x/dp/B0922FZQFW

https://www.amazon.com/dp/B09B1KZMPN

https://www.amazon.com/ECHOGEAR-15U-Open-Frame-Rack/dp/B07YYJMCNV

Normalization of my homelab?

Normalization of my homelab?

Hi, so I have a very individual homelab. It's a collection of stuff accumulated over nearly 30 years of doing weird stuff.

For the past 9 years it's been running as a bunch of lxc containers (privileged because unprivileged did not exist, back then) but several of those containers are p2v conversions of physical hosts dating back to debian woody and earlier. They're all upgraded to at least buster, most are bookworm. Stuff like asterisk, email, home assistant, nextcloud, matrix synapse run there these days.

The server is a 15 year old HP gen6 thing, and is getting quite long in the tooth. There's also a dedicated cheapy microserver with an i4 running opnsense on bare metal as a firewall.

Trying to run stuff like local voice stuff for home assistant is showing the HP's age quite badly. Also, our area is getting fibre, and the opnsense box is maxed out at gigabit. More speed would be nice.

So, I'm in two minds. The homelab has been a lot of fun over the years, but I'm over 50 now, I want lower maintenance. This latest wave of upgrades is making me rethink the next 20 years of homelab. I don't want to leave something stupidly "only me" if I were to die tomorrow (diabetes is a fickle bastard). My wife might want to try and carry on this thing - it runs some useful stuff around the house (but it should be noted that nothing in this house requires a server or cloud) - and that's not going to happen with the current solution.

I think I might have a path, using proxmox, from where I am now, to something that can be deployed on e.g. a bunch of ms01 class devices. I'm thinking to convert the existing HP server to proxmox, to allow me to redeploy all my existing lxc containers into the proxmox world. As I acquire hardware over the next year, I can look at a k8s migration of the services onto a small, MUCH lower power cluster. One of the keys is that I don't want to have big outages of services for days or weeks while I migrate everything so it's gotta be a rolling upgrade as it were.

I'm here soliciting feedback. Has anyone ever migrated from a deeply legacy homebrew homelab into something like this? Does it reduce the workload long term? What's the practicality of this for someone rather less tech savvy?

Thanks!

Proxmox - Slow network speed

Proxmox - Slow network speed

I've noticed recently that my network speed isn't what I would expect from a 10Gb network. For reference, I have a Proxmox server and a TrueNAS server, both connected to my primary switch with DAC. I've tested the speed by transferring files from the NAS with SMB and by using OpenSpeedTest running on a VM in Proxmox.

So far, this is what my testing has shown:

  • Using a Windows PC connected directly to my primary switch with CAT6: OpenSpeedTest shows around 2.5-3Gb to Proxmox, which is much slower than I'd expect. Transferring a file from my NAS hits a max of around 700-800MB (bytes, not bits), which is about what I'd expect given hard drive speed and overhead.
  • Using a Windows VM on Proxmox: OpenSpeedTest shows around 1.5-2Gb, which is much slower than I would expect. I'm using VirtIO network drivers, so I should realistically only be limited by CPU; it's all running internally in Proxmox. Transferring a file from my NAS hits a max of around 200-300MB, which is still unacceptably slow, even given the HDD bottleneck and SMB overhead.

The summary I get from this is:

  • The slowest transfer rate is between two VMs on my Proxmox server. This should be the fastest transfer rate.
  • Transferring from a VM to a bare-metal PC is significantly slower than expected, but better than between VMs.
  • Transferring from my NAS to a VM is faster than between two VMs, but still slower than it should be.
  • Transferring from my NAS to a bare-metal PC gives me the speeds I would expect.

Ultimately, this shows that the bottleneck is Proxmox. The more VMs involved in the transfer, the slower it gets. I'm not really sure where to look next, though. Is there a setting in Proxmox I should be looking at? My server is old (two Xeon 2650v2); is it just too slow to pass the data across the Linux network bridge at an acceptable rate? CPU usage on the VMs themselves doesn't get past 60% or so, but maybe Proxmox itself is CPU-bound?

The bulk of my network traffic is coming in-and-out of the VMs on Proxmox, so it's important that I figure this out. Any suggestions for testing or for a fix are very much appreciated.