Ali cloud ECS server data disk mount

Recently launched cluster server system disk was found not enough. Check disk consumption, the system disk to use 98%, taking into account the demand of late, had to increase data disc, recorded here under mount process data disk.

1 to confirm whether there is data disk

fdisk -l    #查看ECS上的数据盘

FIG / dev / vda a system disk, / dev / vdb and / dev / vdc is a data disk.

Two pairs of data disk partition

fdisk /dev/vdb

In the hard split mode, there are the following commands:

① input m to display all commands listed.

② Enter p to display the partitioning of the hard disk.

③ setting a hard disk input region.

④ n input setting new hard disk partition.

⑤ enter t change disk partition or property.

⑥ enter d to delete the hard disk partition property.

⑦ q input end the partition in the hard disk properties.

⑧ w input end and writing to a hard partition Properties

输入 n    #设定新的硬盘分割区
输入p     #设置硬盘为主要分割区
输入1     #创建第一个主分区
连续两次回车 #系统自动计算 将数据盘都分给一个区
输入wq   #保存操作

3 Check whether the data disk to mount successful (check the partitions)

fdisk -lu /dev/vdb

You can see / dev / vdb1, explained the partition is created successfully

4 format the new partition to create a file system on the new partition

Here we create a ext4 file system, mkfd.vfat command can create a VFAT file system.

mkfs.ext4 /dev/vdb1

5 Create a mount directory

mkdir /BigData

Data disks are created as BigData directory

6 to write the new partition information

echo /dev/vdb1 /BigData ext4 defaults 0 0 >> /etc/fstab    #向/etc/fstab写入新分区信息

7 to see the new partition information

cat /etc/fstab

As shown above, it indicates that the write succeeds

8 Mounting File Systems

root@master:~# mount /dev/vdb1 /BigData

9 View the current disk space and usage

df -h

As shown above appears / dev / vdb1 new file system information indicating mount successfully, you can use the new file system.