After you migrate a Linux server by using Server Migration Center (SMC) and start the destination instance, data may be missing from the original data disk directory. This topic explains the cause and provides a solution.
Problem description
After you migrate a Linux server and start the ECS instance, the original data disk directory appears empty.
Cause
After you migrate a Linux server that has a data disk, the data disk is not automatically mounted when the destination instance starts.
Solution
After you start the ECS instance, run the ls /dev/vd* command to check for data disk devices. Mount the disk as needed, and then edit the /etc/fstab file to configure automatic mounting at startup.