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Comment on My homelab had the stupidest outage ever

dgriffith@aussie.zone ⁨1⁩ ⁨month⁩ ago

Replace CMOS battery
Get small UPS
Discover that small UPS batteries fail regularly.
Add maintenance routine for UPS battery.
Begin to wonder if this is really worth it when the rest of the house has no power.
Get small generator.
Discover that small generators also need maintenance and exercise.
Decide to get a whole house battery back a-la Tesla Powerwall topped off by solar and a dedicated generator.
In the end times a roving band of thugs comes around and kills you and strips your house of valuable technology, leaving your homelab setup behind.l and without power.

Conclusion: just replace the CMOS battery on a yearly basis during planned system downtime.

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catloaf@lemm.ee ⁨1⁩ ⁨month⁩ ago
CMOS batteries last a lot longer than a year. Unless the system has been unplugged for a long time, they should be good for several years. I’m sure there’s actual data out there somewhere.

But yeah, a lot of people think “oh I’ll just put a UPS on it”. They don’t consider that unless you get a really big UPS, they’re only good for very short outages, seconds or minutes, to bridge the gap between the outage and your generator coming on (or the mains power coming back if it was just a flicker).

Also, the batteries in them need to be replaced every 3-5 years.

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- dgriffith@aussie.zone ⁨1⁩ ⁨month⁩ ago
  Yeah , it’s really a little strange in OPs case, I can’t really recall changing a CMOS battery in ages, like decades of computer use.
  
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  - AnarchistArtificer@slrpnk.net ⁨1⁩ ⁨month⁩ ago
    I had to do it for the first time last year and I was slightly giddy from the novelty of it.
    
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- yonder@sh.itjust.works ⁨1⁩ ⁨month⁩ ago
  I bought a small APC UPS about a year ago and am glad I did. In my area, very brief outages are somewhat common so a small UPS will work for the majority of outages.
  
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mattgolsen@lemmy.ml ⁨1⁩ ⁨month⁩ ago
I’m somewhere between step 7 and 8.

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- poVoq@slrpnk.net ⁨1⁩ ⁨month⁩ ago
  Currently at step 9. Waiting for the roving bands of thugs to arrive 😅
  
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  - jjlinux@lemmy.ml ⁨1⁩ ⁨month⁩ ago
    I scheduled them before you, so I’ll let you know once they’re done here (maybe).
    
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umbrella@lemmy.ml ⁨1⁩ ⁨month⁩ ago
hey, AI defense turrents sound like a cool and totally not dangerous project. hope you have a decent GPU in your setup, good luck.

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- IsoKiero@sopuli.xyz ⁨1⁩ ⁨month⁩ ago
  You can deflect rain while you’re at it too.
  
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- Cadeillac@lemmy.world ⁨1⁩ ⁨month⁩ ago
  It is such a huge pet peeve when people say or spell turret wrong. Don’t take this as me attacking you, but as an fyi
  
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  - umbrella@lemmy.ml ⁨1⁩ ⁨month⁩ ago
    whoops typo
    
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    Cadeillac@lemmy.world ⁨1⁩ ⁨month⁩ ago
    No worries lol, sorry
    
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RootBeerGuy@discuss.tchncs.de ⁨1⁩ ⁨month⁩ ago
Stop, he’s already dead!

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sugar_in_your_tea@sh.itjust.works ⁨1⁩ ⁨month⁩ ago
Yup. I don’t have a UPS (probably should; have a good surge protector though), and replacing CMOS batteries is way easier than dealing with the rest. Thanks for the reminder, I’ll go pick some up and swap it out every so often.

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