openstack云主机硬盘复制查询

Posted 2020-12-30 nodchen

 

 

假定客户在自己的电脑上创建文件后

#宿主机查看客户使用的是哪个磁盘

[[email protected] ~]# lvs

LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert

volume-36e2f96e-2aca-4c09-8fff-8a2b98fe304a cinder-ssd -wi-ao---- 2.00g

[[email protected] ~]#

 

 

volume-36e2f96e-2aca-4c09-8fff-8a2b98fe304a 实际硬盘

#将客户的盘刻录下来到指定文件

[[email protected] ~]# dd if=/dev/mapper/cinder--ssd-volume--36e2f96e--2aca--4c09--8fff--8a2b98fe304a of=/opt/addtest

4194304+0 records in

4194304+0 records out

2147483648 bytes (2.1 GB) copied, 12.9984 s, 165 MB/s

[[email protected] ~]# cd /opt/

[[email protected] opt]# ll

total 2338876

-rw-r--r-- 1 root root 2147483648 Aug 18 23:41 addtest

-rw-r--r-- 1 root root 247468369 Aug 16 16:00 openstack_rpm.tar.gz

drwxr-xr-x 3 root root 36864 Jul 19 2017 repo

[[email protected] opt]# #挂载就能读 进行文件挂载

#进行文件挂载到本地

[[email protected] opt]# mount -o loop /opt/addtest /srv

[[email protected] opt]# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/sda2 48G 4.8G 44G 10% /

devtmpfs 479M 0 479M 0% /dev

tmpfs 489M 0 489M 0% /dev/shm

tmpfs 489M 13M 476M 3% /run

tmpfs 489M 0 489M 0% /sys/fs/cgroup

tmpfs 98M 0 98M 0% /run/user/0

/dev/sr0 4.3G 4.3G 0 100% /mnt

/dev/loop0 2.0G 3.1M 1.8G 1% /srv

[[email protected] opt]# cd /srv/

[[email protected] srv]# ls

juemi.txt lost+found

#查看客户内容

[[email protected] srv]# cat juemi.txt

heshouwudbj