I am trying to set up a storage server which has a hardware raid controller and 15x3 TB harddrives. This server is a dedicated server from hetzner.de and I am using the default setup routine (installing an preconfigured image) for setup.
The tool for installing the images does not allow partitions with more than 2TB, so I configured it as followed:
100GB / 512MB /boot 32GB swap
My plan was to create another partition when the operating system is installed. After installation, I used gdisk /dev/sda (which is the only hard drive avaiable) to create another partition with the remaining storage. Created it by doing
n then choosing partition 5 (1,2,3 are already in use). After writing that partition table and rebooting I formatted the drive using
mkfs -t ext4 /dev/sda5. Mounting the drive works, but
df -h tells me that 138GB are used on this partition, which is not true. It's empty except for a "lost+found" folder, which is also empty.
Is there something I'm missing or did I do something wrong? I'm just wondering where the 138GB come from. Any tools I can use to know whats going on?