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Joined 2 years ago
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Cake day: June 30th, 2023

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  • Moving to a rack is nice, I love my rack. If you’re in or near a city I suggest keeping an eye on Craigslist and ebay (search by distance nearest and lowball ones that have been sitting for months) because it’s not uncommon for nice racks to go real cheap as long as you come get them. I got my rack realllll cheap ($40, 42u, fully enclosed with massive pdu) because it’s a 90s ibm rack and it’s welded steel so it’s like 450lbs. Moving it was a nightmare but it’s real sturdy and I’m never moving it again now that it’s in my basement

    For my goals in the short term I have to replace a sas cable that caused a crc error on one drive, it only happened once per smart data but still want to get that done asap. I also have another drive that’s beginning to show some smart issues; it’s on the same sas cable so it may be related because the errors didn’t increase (they all were related to an unclean shutdown, confusing things) but it’s old anyway so better safe than sorry I guess.

    Medium term I want to finally upgrade my ups. The one I have now is not a rack mount which is part of what led to the unclean shutdown. It’s also a bit undersized. I have a generator for my house so I don’t need something massive but the one I have is 450va and several years old so with the tired battery I only can get about 5m of runtime. It’s more than enough to cover the transfer from power cutting out to generator power but I want something that’s a bit more reliable in case of generator failure. This is pricey though because my array is pretty huge so it’ll probably be held off unless I find a good deal on a dead one that has cheap batteries available

    I also want to put the rack on its own circuit. This is something I should do asap because it’s cheap, just gotta find time and rearrange my panel a bit because it’s pretty full. This would be the other part of the unclean shutdown as the outlet would be in a much better location and I could also install a locking outlet

    Would also be nice to pick up a super cheap monitor locally, like something for $15-20 from a pawn shop or Craigslist or something for the rack. Earlier this year I had nginx crash on my server and the webui became inaccessible, I had to drag my nice and kind of large desktop monitor down to the basement to solve the issue, would be nice to just have a shitty small monitor on the rack for that

    Speaking of nginx I keep meaning to setup some kind of reverse proxy or mdns for all my dockers so that I can just do whatever.whatever instead ipaddress:3993 which makes my password managers barf but I’ll probably just be lazy and edit my hosts file

    Longer term I want to add a secondary low power server that can run something like pfsense to handle my routing, then turn my current wireless routers into access points because they kind of suck as routers.

    And of course the array could always be bigger, especially if drive prices fall

    I will probably realistically only do the drive and cable replacement, the circuit thing since that’ll be like $40 and a half hour of work, the monitor if I can find one, and maybe the hosts file thing. If I run into cash (unlikely) or a crazy deal (you never know) the ups would be my next priority but there’s a million other things going in life (deductibles just reset for health insurance, hooray)




  • This will depend wildly on what you are planning to put onto it

    That said I have a 2 cyber power 825va (I think that’s the model, not sure). It’s like 450watts each iirc. I got them 2 for 1 for about $120 new. One has my server/nas, for which it’s grossly underpowered (maybe 7-10 minutes of runtime, at best), and one powers basically everything else critical in my rack (modem, switch, poe switch, etc) and powers that longer but still not as long (my primary switch is a business switch that was pulled from an ewaste place for nothing, like $15, but it’s got 48 gigabit ports and 5 10gb ports! But it also uses a shocking amount of power).

    They work great for my use case. I live in a rural area with a horrendous power grid so I lose power about once every 6 weeks. As a result I have a (very pricey, can’t recommend unless you lose power a lot like me) whole house generator with automatic transfer switch. When power drops out the generator kicks on and switches the house over to generator power which takes about 45-90 seconds, so I really only need these to keep my gear on for that period. Beyond that it’s generator monitoring and if the fuel supply for that is running low network gear is shutdown to conserve power

    In a perfect world where I was financially independent I would probably upgrade the server one to at least a 1500va to ensure my storage pool could fully stop and everything could shut down even if power was lost

    But most ups will work with monitoring in one way or another. APC and cyberpower work with the apc daemon (probably others) which can easily be implemented into all kinds of software and has support in mac, Linux, windows

    Determining battery life depends greatly on load. Rough calculation with power supplies of gear connected, better calculation with something like a kill-a-watt or multimeter and taking a reading for a little while under load, add it all together and add 20-30% to be safe. APC, cyberpower, etc have calculators for this

    Buying used can be okay but you do have to be comfortable changing the battery. Additionally there is the risk of something being wrong with it of course, they’re not bulletproof. They’re usually pretty decent though, the bigger thing is that they’re just really expensive to ship, even without batteries