{% set disk_exist_c1 = salt['cmd.run']("ls /dev/xvdc1") %}
{% set disk_exist_c = salt['cmd.run']("ls /dev/xvdc") %}

{% if 'No such file or directory' not in disk_exist_c1 %}
{% set data_disk = "/dev/xvdc1" %}
{% set data_disk_size = salt['cmd.run']("lsblk --nodeps --noheadings -b -o SIZE "+ data_disk) %}
{% elif 'No such file or directory' not in disk_exist_c %}
{% set data_disk = "/dev/xvdc1" %}
{% set data_disk_size = salt['cmd.run']("lsblk --nodeps --noheadings -b -o SIZE "+ data_disk) %}
{% endif %}