Best practice for seamless multi-disk storage expansion? #31077

[yigedabuliu]

I have searched the existing feature requests, both open and closed, to make sure this is not a duplicate request.

• Yes

The feature

Description
My Immich upload disk is full. I've added a new disk and want to expand storage so that:

Existing photos on the old disk remain viewable
New uploads (from family members via app) go to the new disk automatically
No manual changes needed for end-users

Question
Is there a recommended way to achieve lossless multi-disk expansion? For example, is MergerFS safe to use with Immich's upload directory? Any known caveats with file watching or AI processing on FUSE paths?

Or does Immich have a native solution for this use case?

Environment
Immich version: 2.7.5
Docker Compose on Ubuntu
DB on local HDD

Platform

• Server
• Web
• Mobile