"Title:","' afs01.dfw.openstack.org - IO Throughput - xvdb'" "Vertical Label:","'bytes/s'" "Start Date:","2017-12-16 00:00:00" "End Date:","2017-12-17 00:00:00" "Step:","86400" "Total Rows:","1" "Graph ID:","2376" "Host ID:","99" "" "Date","Bytes Read","Bytes Written" "1970-01-01 00:00:00","NaN","NaN"