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Questions about power and the necessity of UPS (alien.top)

submitted 1 year ago by BeardedBears@alien.top to c/homelab@selfhosted.forum

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Newbie here. I'm looking to set up a rack for better networking gear, my PC's, some Raspberry Pi's, and eventually a NAS. One thing I see everywhere are UPS battery backups.

I've never used a UPS in my entire PC life, and I've experienced a handful of power outages when I'm using my computer. I do use a (probably cheap) surge protector, though. Nothing bad has ever happened. Am I just lucky? Is an unexpected power-outage event for a NAS or Network gear any worse than for a PC? Or if I'm merely lucky, are the dice rolls for damage basically the same? Are there "smart" (ugh) UPS that detect power outages and automatically begin shutting everything down safely?

Also, I don't (think) I want or need my gear to be on all the time. I don't see why I'd need a NAS filled with recreational media to be on when I'm asleep. So what's all this hub-bub about continuous uptime on home networks? Do NAS drives prefer to be on 24/7? Do folks power down their servers every night?

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[–] FinsToTheLeftTO@alien.top 1 points 1 year ago

NAS devices are typically used by multiple users, that’s why they are network attached and not direct attached to a single computer. Yes, you can shut it down when not in use but it defeats many purposes of a NAS in the first place. A NAS losing power at most will lose data and at the least will require a scan at startup.

Pretty much all UPS units have a USB connector that will plug into the NAS and shutdown the system when the battery is low.