@TOC

一、EVS云硬盘介绍

云硬盘（Elastic Volume Service）是一种为ECS、BMS等计算服务提供持久性块存储的服务，通过数据冗余和缓存减速等多项技术，提供高可用性和持久性，以及稳固的低时延性能。您能够对云硬盘做格式化、创立文件系统等操作，并对数据做长久化存储。

二、购买ECS云服务器

1.创立windows零碎的ECS云主机

2.创立Linux零碎的ECS云主机

三、创立EVS云硬盘

创立两块云硬盘，一块挂载windows应用，一块挂载linux应用

四、云硬盘挂载windows零碎的ECS

1.挂载云硬盘windows

2.登录到windows的ECS云主机

3.查看磁盘列表

4.初始化磁盘

5.新建卷


6.查看新加卷

7.向磁盘写入数据

五、云硬盘挂载Linux零碎的ECS

1.挂载到Linux零碎的云主机

2.进入Linux云主机

3.查看磁盘列表

[root@ecs-b15f ~]# lsblkNAME   MAJ:MIN RM SIZE RO TYPE MOUNTPOINTvda    253:0    0  40G  0 disk ââvda1 253:1    0  40G  0 part /vdb    253:16   0  10G  0 disk

3.磁盘分区

[root@ecs-b15f ~]# fdisk /dev/vdbWelcome to fdisk (util-linux 2.23.2).Changes will remain in memory only, until you decide to write them.Be careful before using the write command.Device does not contain a recognized partition tableBuilding a new DOS disklabel with disk identifier 0xb7e5d6cb.Command (m for help): nPartition type:   p   primary (0 primary, 0 extended, 4 free)   e   extendedSelect (default p): pPartition number (1-4, default 1): First sector (2048-20971519, default 2048): Using default value 2048Last sector, +sectors or +size{K,M,G} (2048-20971519, default 20971519): Using default value 20971519Partition 1 of type Linux and of size 10 GiB is setCommand (m for help): wThe partition table has been altered!Calling ioctl() to re-read partition table.Syncing disks.

4.格式化磁盘

[root@ecs-b15f ~]# mkfs.ext4 /dev/vdb1mke2fs 1.42.9 (28-Dec-2013)Filesystem label=OS type: LinuxBlock size=4096 (log=2)Fragment size=4096 (log=2)Stride=0 blocks, Stripe width=0 blocks655360 inodes, 2621184 blocks131059 blocks (5.00%) reserved for the super userFirst data block=0Maximum filesystem blocks=215167795280 block groups32768 blocks per group, 32768 fragments per group8192 inodes per groupSuperblock backups stored on blocks:         32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632Allocating group tables: done                            Writing inode tables: done                            Creating journal (32768 blocks): doneWriting superblocks and filesystem accounting information: done

5.挂载分区

[root@ecs-b15f ~]# mount /dev/vdb1 /data/[root@ecs-b15f ~]# df -hFilesystem      Size  Used Avail Use% Mounted ondevtmpfs        486M     0  486M   0% /devtmpfs           496M     0  496M   0% /dev/shmtmpfs           496M  6.8M  489M   2% /runtmpfs           496M     0  496M   0% /sys/fs/cgroup/dev/vda1        40G  2.1G   36G   6% /tmpfs           100M     0  100M   0% /run/user/0/dev/vdb1       9.8G   37M  9.2G   1% /data

6.向磁盘写入数据

[root@ecs-b15f ~]# cd /data/[root@ecs-b15f data]# touch file100[root@ecs-b15f data]# lltotal 16-rw-r--r-- 1 root root     0 Oct 21 21:39 file100drwx------ 2 root root 16384 Oct 21 21:37 lost+found

六、云硬盘EVS快照

1.创立磁盘快照

2.查看快照列表

3.删除文件

[root@ecs-b15f data]# lsfile100  lost+found[root@ecs-b15f data]# rm -rf file100[root@ecs-b15f data]# lltotal 16drwx------ 2 root root 16384 Oct 21 21:37 lost+found[root@ecs-b15f data]#

4.卸载分区

umount /data

5.卸载云硬盘

6.应用快照复原磁盘

7.从新挂载linux云主机

8.查看数据恢复状况

[root@ecs-b15f ~]# mount /dev/vdb1 /data[root@ecs-b15f ~]# cd /data/[root@ecs-b15f data]# lsfile100  lost+found[root@ecs-b15f data]#