One or multiple storage pools?

[mastermind]

I have DS923+ with 2x22TB and 2x6TB drives.
Now I'm thinking how to mount them all in NAS...
This is my first NAS so I'm a bit confused.
The easiest option is to create one Storage Pool with 4 drives. The thing is, I'm going to use most of the storage for TV/Movies/etc and I don't really want to waste so much space (around 18 TB) for data redundancy when I can just redownload everything on RAID failure.
Another option is to create one JBOD/RAID0 pool for media (2x22TB) and SHR/RAID1 pool for important data (2x6TB).
Which is the best option? Any ideas? Downsides? What's your setup?

 

[Telos]

I don't really want to waste so much space (around 18 TB) for data redundancy when I can just redownload everything on RAID failure. ... Which is the best option?

If you don't mind redownloading, then by all means maximize your media storage. Otherwise... 1 pool, 1 SHR volume, btrfs formatted.

 

[mastermind]

I decided to buy more 22TB drives and make one 4x22TB RAID.

 

[ed.j]

if one of your disks fails, it will take you a hell of a long time to download 88 TB. why not use shr with btfrs and get 66tb of usable space, and a failsafe if one drive fails?

 

[mastermind]

Right, that's what I meant - SHR1 or RAID5. Sorry if I wasn't clear enough.

 

[ed.j]

use shr1 (aka shr) with btfrs.