1#!/bin/bash 2# 3# Test qcow2 preallocation 4# 5# Copyright (C) 2019 Red Hat, Inc. 6# 7# This program is free software; you can redistribute it and/or modify 8# it under the terms of the GNU General Public License as published by 9# the Free Software Foundation; either version 2 of the License, or 10# (at your option) any later version. 11# 12# This program is distributed in the hope that it will be useful, 13# but WITHOUT ANY WARRANTY; without even the implied warranty of 14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15# GNU General Public License for more details. 16# 17# You should have received a copy of the GNU General Public License 18# along with this program. If not, see <http://www.gnu.org/licenses/>. 19# 20 21# creator 22owner=kwolf@redhat.com 23 24seq=$(basename $0) 25echo "QA output created by $seq" 26 27status=1 # failure is the default! 28 29_cleanup() 30{ 31 _cleanup_test_img 32 rm -f $TEST_IMG.data 33} 34trap "_cleanup; exit \$status" 0 1 2 3 15 35 36# get standard environment, filters and checks 37. ./common.rc 38. ./common.filter 39 40_supported_fmt qcow2 41_supported_proto file 42_supported_os Linux 43 44for mode in off metadata falloc full; do 45 46 echo 47 echo "=== preallocation=$mode ===" 48 echo 49 50 IMGOPTS="preallocation=$mode" _make_test_img 64M 51 52 printf "File size: " 53 du -b $TEST_IMG | cut -f1 54 55 # Can't use precise numbers here because they differ between filesystems 56 printf "Disk usage: " 57 [ $(du -B1 $TEST_IMG | cut -f1) -lt 1048576 ] && echo "low" || echo "high" 58 59done 60 61for mode in off metadata falloc full; do 62 63 echo 64 echo "=== External data file: preallocation=$mode ===" 65 echo 66 67 IMGOPTS="data_file=$TEST_IMG.data,preallocation=$mode" _make_test_img 64M 68 69 echo -n "qcow2 file size: " 70 du -b $TEST_IMG | cut -f1 71 echo -n "data file size: " 72 du -b $TEST_IMG.data | cut -f1 73 74 # Can't use precise numbers here because they differ between filesystems 75 echo -n "qcow2 disk usage: " 76 [ $(du -B1 $TEST_IMG | cut -f1) -lt 1048576 ] && echo "low" || echo "high" 77 echo -n "data disk usage: " 78 [ $(du -B1 $TEST_IMG.data | cut -f1) -lt 1048576 ] && echo "low" || echo "high" 79 80done 81 82# success, all done 83echo "*** done" 84rm -f $seq.full 85status=0 86