It is recommended that you migrate to a new server manually. Recommended method
Or stop all programs stored on /www, such as mysql, php, etc., then copy the /www directory to a directory on a large hard disk, rename the /www directory and make a soft link
Reference: This operation is risky. Please take a snapshot of the system hard disk before performing the operation.
cp -arpf /www /hard disk directory/www2
mv /www /www_bak
ln -sf /hard disk directory/www2 /www
amanhstu