Hello guys,
New member here 
A couple of questions:
-
HDD’s are cheap according to me. So I don’t mind sacrificing space.
If all my data fits on the largest size HDD you can buy today, what is the most redundant setup?
I would think 2 HDD in SHR or RAID1?
RAID 5 or 6 is a bigger risk? -
SHR or RAID1 for a 2 HDD setup?
I can’t seem to find a noticable difference.
Are there pro’s and con’s?
Safety of my data and simplicity are the most important. -
If you enable checksums and perform a btrfs scrub, can a 2 HDD setup (SHR or RAID1) perform self healing? Or is this not possible on a 2 HDD setup?
I can’t find the answer.
Some sources say yes, others say self healing is only for a multi disk setup with parity. -
Backup solution.
I was thinking about a second NAS with 2 HDD.
Only powered on for SMART + scrub tests or in need of a backup.
That way I have 4 copies of my data: 2 in NAS a (online) and 2 in NAS b (offline + remote).
I hope the specialists here can help.
Greetings