Hello everyone, first time posting here.

I've got one of those Beelink Mini MEs that were popular this summer, and I'm just about ready to start the array. I've got a 4TB mirror ready to go, but I'm wondering about the Autotrim setting. Default is On, but my AI helper says that I should turn it off:

⚠️ Autotrim: No, Do Not Enable This

Suggestion: Disable autotrim at the pool level.

This seems wrong, but it's the right move. autotrim=on tells ZFS to run a TRIM command every single time you delete a file. If you delete 10,000 small files, it runs 10,000 TRIM operations. This can cause massive performance stalls and slow down your pool during heavy use.

The Correct Solution:

1. Disable autotrim in the pool settings.

2. Install the "User Scripts" plugin from the Community Apps.

3. Create a new script that runs a weekly zpool trim your_pool_name.

4. Schedule this script to run at an idle time, like 3:00 AM on a Sunday.

This gives you the best of both worlds: your SSDs get trimmed (which is essential for their health and speed), but it happens in one efficient batch operation during off-hours, not as a constant performance-killing interruption.

I'm totally new to this, so I figured I'd ask here before blindly following algorithmic advice. What would you recommend?

My setup:

• Unraid 7.2

• two 4TB WD Red NVMes

• ZFS mirror

• Scrub schedule set to monthly (maybe not relevant to this issue?)

Thanks for any help you can give🙏

Leave it on, but it's still recommended to run the scheduled trim as well.