This can be an inconvenience to specific deployment scenarios where blankspace and the image file should be in different locations.
Feature available in my fork here: https://github.com/mhpx/nimbus/commits/splitblank
pull request: #86
Enable having blankspace partition in a separate location
On a cloud setup where large amounts of blankspace are required it was
deemed desireable to have the image directory split from the blankspace
file. This would hopefully allow the IO load to be spread out.
Closes #83 and #86.