MergerFS Not Properly Using Disk Space I am pooling drives together with mergerfs using the following command: `mergerfs -o defaults,allow_other,use_ino /media/pool\* /media/merger` which pools all drives mounted starting with /media/pool to /media/merger. It combines them but when I try to move a very large file to /media/merger, it doesn't put it on a drive where it will fit. It's a 50GB file and it's trying to put it on a drive that only has a few GB available so the transfer fails. The other drives have enough space but it isn't trying to put it there. What am I missing?

Have you read the documentation? There is no such thing as "copying a file." It's open, write x N, close. There isn't a way to know the size of the file ahead of time. The drive is selected at creation time and the create policy dictates that. By default it's `epmfs` which will choose the drive with the most free space which has the relative path being used.

If you want to keep a path preserving policy and have these kinds of situations handled look at the `moveonenospc` feature.