>>106268837
>So are usb enclosures reliable enough for always connected external storage or not? What about eSATA?
While my HDD 10-Bay towers are always physically connected to the hub, i only have those on where i need to access one of the disks.
Since each HDD can turned on/off independently from the others, i don't need them to be on all of them all the time.
Each tower has a standard PC power supply built in by default, you can even replace them with a semi passive ones of better quality. Which makes the towers noise level lower.
I also built in a fan regulator and let the casings fans run at a much lower speed. Reduces noise furthermore.
Despite all these measures, i never faced any temp issues.
When i have accessed an HDD in these towers, i let it run for some hours straight and then shut it down again.
I had no HDD fail on me for the past 12 years and i went the 10-Bay HDD-Tower route for about eight years ago.
The collection is combined at about 1.2 Petabyte now and a RAID 6 would require me to go 19" rack mount with a lot of additional shit.
Not doable in a 41 squaremeter apartment where i live together with my wife.
The main reasons i don't go for a RAID sytem are:
1. power consumption
2. Noise level
3. Constant heat coming from them
Can't host such a RAID nor in my living room or bedroom either.
Additional to this, we live under the roof and it's getting freaky hot with about 36 degree celsius during summer here.
Eight towers are data and the other eight towers are basically holding a mirror of the content.
I consider buying an LTO drive and a shit ton of cassettes to make a cold storage backup that i can store at a different location.
About the reliability of USB connections:
I never had any trouble using US for data transfer of any kind. At leat not sine i'm using macOS.
It also for sure depends on good USB hardware. Shitty USB-controllers will make your life hard.
Pic related is the hub i'm using. It's 3.1