Inodes ZFS 100% Block server immich

🗄️Server❓Question

I have a server where I store files on a mirrored ZFS disk 5TB (2,5 Tb + 2,5 Tb) . My inodes are at 100%, so the server is locked. Is it possible that something is creating files massively? The ZFS pool only contains immich data; it's not used for anything else. Can I delete something to free up space and unblock the system? The only thing I can think of is the upload folder, but... Thanks