[benjiro]

Ignoring its biggest advantage vs mdraid, or zfs raid:

The ability to sleep all / individual HDDs:

* only keep awake the drives that your actually read data from * only keep awake the drive that your write data too + n parity drives

For home users, that is a TON of energy saving. And no, your "poor" HDDs are not going to suffer from spinning up a few times per day.

You can spin up/down a HDD 10x per day, for 100 years before you come even close to the manufactures (lowest) hdd limits. Let alone if you have 4+ drives and have a bit of data spreading, or combined with unraids nvme/ssd caching layer.

So unlike mdraid or zfs where its a all or nothing situation, unraid / snapraid gives you a ton of energy saving.

And i understand the US folks here do not care when they pay maybe 6 to 12 cent / kwh, but the rest of the world has electricity prices in the 30 to 50 cent / kwh, and it stacks up very fast when you are using < 1watt vs 5/7Watt per HDD/24/7...

[theshrike79]

This is the biggie for me, not for electricity but for noise.

My /archive share is two big-ass SAS drives that were cheap. They are also LOUD.

But since I don't poke around the archive much, they sleep most of the time.