In most cases, thin pools consume nearly the entire volume group. Previously, however, the Block Storage scheduler always calculated storage capacity using the volume group's free space, even with thin pools enabled. This prevented the creation of new volumes within volume groups that used thin pools, as the scheduler incorrectly reported that there was insufficient space.
With this update, the Block Storage scheduler now calculates thin pool capacity correctly. When thin pools are enabled, the scheduler now uses free space information from the ThinLVM driver to determine capacity.