Hello,
I mounted an SSD in my TrueNAS system and I’d like to install Immich app on the SSD, with thumbnails stored there as well. The rest of the data will be located on the HDD.
How can I do that with new storage configuration where I have only
*Data Storage (aka Upload Location) and
*Postgres Data Storage ?"
Important to add that I want to install Immich from Truenas catalog
Thank you in advance for help
The thumbnails are on the HDD in the data dataset. Separately is no longer possible as far as I can see, not if you want to use the App catalog. But given that Immich is actively developed, you never know when that changes 
But how big is your library and thus the thumbs?
The system is quick enough on the HDD I noticed. I migrated from the old system to the new and thus moved my thumbnails from the SSD to the HDD. (about 100,000 images)
Thank you for reply.
So far my database is around 700GB but when I use VPN to access to my Immich it take too much time… so this is the major reason why I mounted additional SSD
700GB database meaning images or thumbnails only? My library is 2TB.
Unless you have only 1 drive, any RAIDZ will provide pretty nice read speeds.
I think your bottleneck might not be the HDD but your upload speed of your ISP and/or VPN. My thumbnails load pretty nice on 4G (my ISP only has 30Mbit upload though)
I have RAID1 and upload 20MB… but even in my local network loading thumbs take time
btw now idk why I cannot see any photos (after update immich) even via android app or website
