Selfhosted

tldr: I'm going to set up raid z2 with 4x8TB hard drives. I'll have photos, documents (text, pdf, etc.), movies/tv shows, and music on the pool. Are the below commands good enough? Anything extra you think I should add?

sudo zpool create mypool raidz2 -o ashift=12 /dev/disk/by-id/12345 ...

zfs set compression=lz4 mypool #maybe zstd?
zpool set autoexpand=on mypool
zpool set autoreplace=on mypool #I might keep this off. I can see myself forgetting in the future
zpool set listsnapshots=on mypool

With ai raising hard drive prices, I over spent on 3x10TB drives in order to reorganize my current pool and have 3 hard drives sitting on a shelf in the event of a failure. My current pool was built over time but it currently consists of 4x8TB drives. They are a mirrored stripe so a usable 16TB. If I understand it correctly, I can lose 1 drive for sure without losing data and maybe a second drive depending on which drive fails. Because of that, I want to move to raid z2 to ensure I can lose 2 drives without data loss. I'm going to move data from my 4x8TB drives, to the 3x10TB, reconfigure the 4x8TB, and move everything back. I run Immich, plex/jellyfin, and navidrome off the pool. All other documents are basically there for long term storage just in case. What options should I use for raid z2 when setting it up?

I know I can look this stuff up. I have been and continue to do so, I was just hoping for some advise from people that are more knowledgeable about this than me. The move from the 4x8TB drives to the 3x10TB is going to take ~3 days so I really don't want to mess this up and have to start over 😅

Edit:

After looking up each property, this is the command I will probably end up using to create the raid z2 pool, thanks Avid Amoeba:

~~sudo zpool create
-o ashift=12 -o acltype=posixacl -o xattr=sa
-o compression=lz4 -o dnodesize=auto -o relatime=on
-o normalization=formD
raidz2
mypool
/dev/disk/by-id/12345 ...~~

Edit2:

Above command didn't work on my machine. The order and uppercase "O" matters. Had to do this:

sudo zpool create \
  mypool \
  raidz2 \
  -o ashift=12 -O compression=lz4 \
  -O normalization=formD -O acltype=posixacl \
  -O xattr=sa -O dnodesize=auto \
  -O relatime=on \
  /dev/disk/by-id/12345 ...

Edit3:

And finally, after all this, I set up my tmp pool of 3x10TB disks as a raid z2 instead of raid z1. Spent a day and a half transferring before I finally saw my mistake after running out of space 🫠