Disk space error when creating config.ini

It seems like I'm having trouble on this step.

• [12:49:18]: Failed to create config.ini
• [12:49:18]: Estimated disk space usage is 17592186042844, but there is only 4095 free. It is unsafe to continue. Reducing the DataMemory reduces the number of log files or use a partition with more free space.
• [12:49:18]: Setting DataMemory to 128772 MiB.
• [12:49:18]: System Memory 257544 MiB.
• [12:49:18]: Preparation of the NDB configuration file (config.ini).

I'm not sure where this size is coming from. It seems like an awful lot with 128gb when our 90gb 7.2.7 nodes are about 300gb. 17tb seems a bit much. These are going on dedicated drives 960gb drives which are almost completely baron

Node 1's filesystem looks like this.

Filesystem                    1K-blocks     Used  Available Use% Mounted on
/dev/mapper/rhel_paizo1-root   52403200 15877452   36525748  31% /
devtmpfs                      131851712        0  131851712   0% /dev
tmpfs                         131862732        0  131862732   0% /dev/shm
tmpfs                         131862732    75156  131787576   1% /run
tmpfs                         131862732        0  131862732   0% /sys/fs/cgroup
/dev/sdb1                     922323716    77832  875371312   1% /data
/dev/sda1                       1038336   239216     799120  24% /boot
/dev/mapper/rhel-home 1894371588  1894288 1892477300   1% /home
tmpfs                          26372548        0   26372548   0% /run/user/1304

Node 2:

Filesystem             1K-blocks    Used  Available Use% Mounted on
/dev/mapper/rhel-root   52403200 7818800   44584400  15% /
devtmpfs               131851712       0  131851712   0% /dev
tmpfs                  131862732       0  131862732   0% /dev/shm
tmpfs                  131862732  107796  131754936   1% /run
tmpfs                  131862732       0  131862732   0% /sys/fs/cgroup
/dev/sdb1              922323716   77832  875371312   1% /data
/dev/sda1                1038336  240892     797444  24% /boot
/dev/mapper/rhel-home 1894371588 1119468 1893252120   1% /home
tmpfs                   26372548       0   26372548   0% /run/user/1304

I'm a bit incredulous that these numbers are correct on any involved system. Am I doing something wrong?