Change the data storage path of MySQL 5.7 in Linux environment to data disk

The default installation path of yum in MySQL installation is /var/lib/mysql. In the project, you need to modify the MySQL data storage directory to the path of the mounted data disk.

df -h view disk space size

Migrate to the /home directory this time

1. Create the data directory in the home directory as the default path

mkdir -p /home/data

2. Turn off MySQL

systemctl stop mysqld.service

3. Migrate directory

cp -arp /var/lib/mysql /home/data/

The above cp -arp parameter is to keep the original file directory and file permissions directly copied to the target path.   

4. Set directory permissions

chown -R mysql:mysql /home/data/mysql

The above cp -arp parameter is to keep the original file directory and file permissions directly copied to the target path.  

5. Modify the configuration file

vim /etc/my.cnf

[mysqld]
character-set-server=utf8
[client]
default-character-set=utf8

6. SELINUX settings

vim /etc/selinux/config

Modify the parameters of SELINUX to disabled

7. Check whether the configuration takes effect