diff --git a/tests/setup_ceph_disks.sh b/tests/setup_ceph_disks.sh
index 2efb2042bc..66a085caa5 100644
--- a/tests/setup_ceph_disks.sh
+++ b/tests/setup_ceph_disks.sh
@@ -1,13 +1,13 @@
 mkdir -p /opt/data/kolla
-dd if=/dev/zero of=/opt/data/kolla/ceph-osd0.img bs=5M count=3072
+dd if=/dev/zero of=/opt/data/kolla/ceph-osd0.img bs=5M count=2048
 LOOP=$(losetup -f)
 losetup $LOOP /opt/data/kolla/ceph-osd0.img
-parted $LOOP -s -- mklabel gpt mkpart KOLLA_CEPH_OSD_BOOTSTRAP_OSD1 0 14GB
+parted $LOOP -s -- mklabel gpt mkpart KOLLA_CEPH_OSD_BOOTSTRAP_OSD1 1 -1
 
-dd if=/dev/zero of=/opt/data/kolla/ceph-journal0.img bs=5M count=1024
+dd if=/dev/zero of=/opt/data/kolla/ceph-journal0.img bs=5M count=512
 LOOP=$(losetup -f)
 losetup $LOOP /opt/data/kolla/ceph-journal0.img
-parted $LOOP -s -- mklabel gpt mkpart KOLLA_CEPH_OSD_BOOTSTRAP_OSD1_J 0 5GB
+parted $LOOP -s -- mklabel gpt mkpart KOLLA_CEPH_OSD_BOOTSTRAP_OSD1_J 1 -1
 
 partprobe $LOOP