F #3222: return ec pool usage if used (#3333)
F #3222: return ec pool usage if used (#3333)


(cherry picked from commit f07da23bcec75f3fa35f8883c85c07397ffd68ac)

atodorov-storpool/one,baby-gnu/one,atodorov-storpool/one,OpenNebula/one,atodorov-storpool/one,atodorov-storpool/one,OpenNebula/one,OpenNebula/one,baby-gnu/one,baby-gnu/one,OpenNebula/one,atodorov-storpool/one,OpenNebula/one,baby-gnu/one,atodorov-storpool/one,OpenNebula/one,atodorov-storpool/one,atodorov-storpool/one,OpenNebula/one,OpenNebula/one,atodorov-storpool/one,OpenNebula/one,baby-gnu/one,baby-gnu/one,baby-gnu/one,baby-gnu/one