[HN Gopher] My Homelab Build
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My Homelab Build
Author : throwaway894345
Score : 49 points
Date : 2021-06-09 16:27 UTC (6 hours ago)
(HTM) web link (christine.website)
(TXT) w3m dump (christine.website)
| ramshanker wrote:
| Buying integrated graphics CPU because discrete GPUs are
| impossible to find. THIS. is my pain too right now. Can't wait
| for the Crypto bubble to burst.
| throwaway894345 wrote:
| Why aren't the crypto folks buying up all of the integrated
| graphics CPUs as well?
| Macha wrote:
| * Poor support for APIs used to perform compute on GPUs
|
| * Poor area density. If you were to try mine with igpus, you
| need one system per igpu, and even if you just stacked
| motherboards and power supplies together in some sort of
| custom case, you clearly get a lot more compute per area with
| dgpus.
|
| * Poor performance.
| throwaway894345 wrote:
| No doubt that they're poorer performance than discrete
| GPUs, but given the scarcity and cost of the latter I would
| think they would settle for integrated gpus rather than no
| gpus at all?
| Macha wrote:
| Mining isn't free. You need to pay for space and power
| (especially when we're talking about the large scale
| miners capable of making an impact on the hardware
| supply). With most bitcoin like coins, the hashrate of
| the network has diminishing returns as the difficulty
| increases and the amount of compute resources needed to
| mine blocks at a decent rate increases. If your computing
| capabilities are worse than your competitors, it's
| unlikely you'll make a profit (which is part of why
| bitcoin mining is the land of ASICs these days, gpu/cpu
| mining of bitcoin doesn't happen, most gpu miners mine
| ethereum or monero, then if they want bitcoin sell that
| and buy bitcoin).
| InvaderFizz wrote:
| Cost/benefit. The iGPUs are low hash, you only get one per
| complete system. With dGPUs, you can stack 3-4 into a single
| system, and each one of those is orders of magnitude more
| powerful than the iGPU.
| pickle-wizard wrote:
| When I upgraded my homelab last year, I got around this by
| buying a motherboard with IPMI. It has a cheap little Aspeed
| video card on board. I also get the advantage of a built in IP
| KVM, remote power control, and a virtual CD-ROM. Basically all
| the stuff you get in a Dell iDRAC or HP iLO, but in a micro-ATX
| board.
| mech422 wrote:
| I gave up on IPMI/DRAC/ILO on my old server equipment - it
| was the most fragile part of the machines.
|
| I ended up just getting a used Raritan IP KVM off ebay, and
| its worked perfectly.
| exo762 wrote:
| Ethereum is to transition to PoS late 2021 / early 2022.
| https://blog.ethereum.org/2021/05/18/country-power-no-more/
|
| Rest of GPU-mining is likely small enough so that we will see
| lots of GPUs on second-hand market.
| loganwedwards wrote:
| Entertaining read. I enjoyed the dialogue-like banter. Nice write
| up!
| Macha wrote:
| Old desktop hardware works pretty well as a server for
| homelab/personal use. My server is mainly cast off parts from my
| desktop, and initially it was using a 4670k + 16GB RAM. Running
| vaultwarden (nee bitwarden_rs), jellyfin, gotify, graylog,
| Foundry VTT, unbound, a local Arch package repo, calibre-web.
|
| Performance was pretty fine, it turns out even services like
| jellyfin and foundry don't have much in the way of idle usage and
| a personal server doesn't have much in the way of multiple users.
| It's since been upgraded to a 3900x, mostly to justify
| 3900x->5900x upgrade in my gaming machine, but also because there
| were two tasks it got cpu bound:
|
| 1. Running multiple h265 hevc to h264 transcodes for jellyfin - I
| don't have a GPU with supported video acceleration support, since
| both the r9 290x and igpu on the i5 were too old for both h265
| decoding or h264 encoding.
|
| 2. Writing to my storage array was actually CPU limited (it's got
| lvmraid raid 6 on LUKS devices, LUKS on LVM would likely have
| worked better than LVM on LUKS here).
| jvanderbot wrote:
| Not to be picky but: "Then I tried pinging it from the same
| machine, another machine in the same room, another server on the
| same continent and then finally another server on the same
| planet. "
|
| Could just be 4 machines in the same room.
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