AWS-EC2挂载EBS卷

Posted 2022-05-10 gamedev˚

在AWS控制台新建一个卷之后，并Attached到EC2实例上之后，登录该实例，通过命令lsblk可以查看当前可用的卷信息

NAME                                                                                     MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
xvda                                                                                     202:0    0   30G  0 disk
└─xvda1                                                                                  202:1    0   30G  0 part /
xvdf                                                                                     202:80   0   50G  0 disk
loop0                                                                                      7:0    0  100G  0 loop
└─docker-202:1-466265-pool                                                               253:0    0  100G  0 dm
  └─docker-202:1-466265-07b91bd38d426f9da2428c068aa1b780e3ca2236a29cce6efba92c4143adf498 253:1    0   10G  0 dm
loop1                                                                                      7:1    0    2G  0 loop
└─docker-202:1-466265-pool                                                               253:0    0  100G  0 dm
  └─docker-202:1-466265-07b91bd38d426f9da2428c068aa1b780e3ca2236a29cce6efba92c4143adf498 253:1    0   10G  0 dm

其中可以看到50G是我刚加入的，我现在需要将其挂载到实例上。现在需要通过下面命令初始化新卷

[centos@ip-172-31-10-1 ~]$ sudo mkfs -t ext4 /dev/xvdf
mke2fs 1.42.9 (28-Dec-2013)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
3276800 inodes, 13107200 blocks
655360 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2162163712
400 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
    32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
    4096000, 7962624, 11239424

Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

再通过命令sudo mount /dev/xvdf /data就可以挂载上了，重新通过命令查看挂载情况：

[centos@ip-172-31-10-1 ~]$ lsblk
NAME                                                                                     MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
xvda                                                                                     202:0    0   30G  0 disk
└─xvda1                                                                                  202:1    0   30G  0 part /
xvdf                                                                                     202:80   0   50G  0 disk /data
loop0                                                                                      7:0    0  100G  0 loop
└─docker-202:1-466265-pool                                                               253:0    0  100G  0 dm
  └─docker-202:1-466265-07b91bd38d426f9da2428c068aa1b780e3ca2236a29cce6efba92c4143adf498 253:1    0   10G  0 dm
loop1                                                                                      7:1    0    2G  0 loop
└─docker-202:1-466265-pool                                                               253:0    0  100G  0 dm
  └─docker-202:1-466265-07b91bd38d426f9da2428c068aa1b780e3ca2236a29cce6efba92c4143adf498 253:1    0   10G  0 dm

[centos@ip-172-31-10-1 ~]$ df -lh
Filesystem      Size  Used Avail Use% Mounted on
/dev/xvda1       30G   11G   20G  37% /
devtmpfs        3.9G     0  3.9G   0% /dev
tmpfs           3.7G     0  3.7G   0% /dev/shm
tmpfs           3.7G   17M  3.7G   1% /run
tmpfs           3.7G     0  3.7G   0% /sys/fs/cgroup
tmpfs           757M     0  757M   0% /run/user/1000
/dev/xvdf        50G   53M   47G   1% /data