After you add an ECS instance attached with a data volume as an existing node to a VKE cluster, you need to clear the data volume in advance if you need to mount the data volume on the /var/lib/containerd and /var/lib/kubelet directories.

Solution

This topic provides an example of how to clear /dev/vdb.

View the list of mounted file systems and confirm whether /dev/vdb is already mounted to a file system.

df -h

Back up important data in /dev/vdb as needed.

After confirming that all processes that use the /dev/vdb directory have stopped, unmount /dev/vdb.

umount /dev/vdb

Format /dev/vdb.

mkfs.ext4 /dev/vdb

The expected result is as follows:

Mount /dev/vdb again.

mount /dev/vdb /mnt/vdb

Check whether the device is mounted.

df -h

The expected result is as follows: The corresponding ECS instance can be added as an existing node to the VKE cluster.

Last updated: 2026.07.23 14:31:45

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