I have a Stardom 24TB external RAID formatted as HFS+. It shows up as a 24TB disk, but available space is only 66GB when only 6.4TB is used. When mounted in MacOS I get the correct amount of available space.
I mounted the disk with sudo mount -t hfsplus -o force,rw /dev/sdXX /mnt/XX, reading and writing to the disk is working fine.
Tried it with both Ubuntu 18.04 and Linux Mint 19, same result.
What am I doing wrong?