全备份 l(小写l) [用all(cha/add)之后一直用不能更改] 标签不能改
echo aaaaa >> a.txt
xfsdump -L all -M dumpfile -l 0 - /mnt | xz > /home/xfs.$(date +%Y%m%d).all0.xz
xzcat /home/xfs.20170609.all0.xz
增量
echo bbbbbbb > b.txt
xfsdump -L add -M dumpfile -l 1 - /mnt | xz > /home/xfs.$(date +%Y%m%d).add1.xz
xzcat /home/xfs.20170609.add0.xz
xzcat /home/xfs.20170609.add1.xz
echo ccccc > c.txt
xfsdump -L add -M dumpfile -l 2 - /mnt | xz > /home/xfs.$(date +%Y%m%d).add2.xz
xzcat /home/xfs.20170609.add2.xz
echo dddddd > d.txt
xfsdump -L add -M dumpfile -l 3 - /mnt | xz > /home/xfs.$(date +%Y%m%d).add3.xz
xzcat /home/xfs.20170609.add3.xz
差异
xfsdump -L cha -M dumpfile -l 1 - /mnt | xz > /home/xfs.$(date +%Y%m%d).cha1.xz
xzcat /home/xfs.20170609.cha1.xz
完全恢复+增量恢复
xzcat /home/xfs.20170609.all0.xz | xfsrestore - /mnt/
ls
xzcat /home/xfs.20170609.add1.xz | xfsrestore - /mnt/
ls
xzcat /home/xfs.20170609.add2.xz | xfsrestore - /mnt/
ls
xzcat /home/xfs.20170609.add3.xz | xfsrestore - /mnt/
ls
完全恢复+差异恢复
xzcat /home/xfs.20170609.all0.xz | xfsrestore - /mnt/
ls
xzcat /home/xfs.20170609.cha1.xz | xfsrestore - /mnt/
ls
