**To enable metrics collection for an Auto Scaling group**

This example enables data collection for the specified Auto Scaling group::

    aws autoscaling enable-metrics-collection --auto-scaling-group-name my-auto-scaling-group --granularity "1Minute"

To collect data for a specific metric, use the ``metrics`` parameter::

    aws autoscaling enable-metrics-collection --auto-scaling-group-name my-auto-scaling-group --metrics GroupDesiredCapacity --granularity "1Minute"

For more information, see `Monitoring Your Auto Scaling Groups and Instances Using Amazon CloudWatch`_ in the *Amazon EC2 Auto Scaling User Guide*.

.. _`Monitoring Your Auto Scaling Groups and Instances Using Amazon CloudWatch`: https://docs.aws.amazon.com/autoscaling/ec2/userguide/as-instance-monitoring.html