AWS EC2：如何从仪表板检查磁盘大小和使用情况？

Question

I'm using Amazon Web Services and can see my EC2 instances in the dashboard. I would like to see the size of the attached disk for each one and how much unused space I have left. I know that I can ssh into each instance and run df if I wanted to.

How would I get this information through the EC2 dashboard ?

Here is the dashboard:

Answer 1

It is not possible to see these metrics from this. They would instead be a custom metric against each EBS volume.

Take a look at the CloudWatch agent that should be installed on your EC2: https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/Install-CloudWatch-Agent.html

Answer 2

EC2 tools or the Management Console don't have that higher level of access to EBS volume (ie at the file system level) So, there is no way to determine how much data or free space is available within a volume from outside an OS, except by invoking a command within the OS where the volume is mounted.

Answer 3

I found an answer for the first question: How to find the disk size from the dashboard . However, I can't figure out a way to get the disk's remaining unused space from this UI.

1. Click on instance

2. Click on root device

3. Click on EBS volume ID

4. See the disk size

If anyone can determine how to get unused disk space from the dashboard, please post your answer.