Comment 3 for bug 1536726

Reviewed: https://review.openstack.org/272647
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible/commit/?id=aac713dcb00a3e1e4c153b4e3c68faf3d544c6c1
Submitter: Jenkins
Branch: liberty

commit aac713dcb00a3e1e4c153b4e3c68faf3d544c6c1
Author: d34dh0r53 <email address hidden>
Date: Thu Jan 21 15:44:01 2016 -0600

    Convert available and minimum disk sizes to bytes.

    Previously the check-requirements role would assume GB as the unit
    of space when gathering disk sizes from ansible_devices. With
    drives larger than 1 TB ansible_devices reports the size as a
    float. This converts all disk sizes to bytes for consistency within
    the comparisons regardless of the size of the disk.

    Change-Id: I07b81a8a35197f73cd338fa02cb7b112df15a012
    Closes-Bug: 1536726
    (cherry picked from commit 85aad72a910538732cd668676e1d4c88e814ba22)