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You can refer to Why is my EC2 Linux instance unreachable and failing its status checks?.
Troubleshoot instances with failed status checks provides list of problems that can cause status checks to fail.
In your Ubuntu, you can execute df -h to view disk usage.
To monitor disk usage, you can install CloudWatch agent as per How do I install and configure the unified CloudWatch agent to push metrics and logs from my EC2 instance to CloudWatch?
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Hi, Thanks for your inputs. I saw the system logs after rebooting the instance. It seems to be ok. I could not find any error or fatal messages.
Also the 'df -h' command response also shows the storage to be ok. /dev/root 29G 9.8G 20G 34% / tmpfs 2.0G 0 2.0G 0% /dev/shm tmpfs 781M 888K 780M 1% /run tmpfs 5.0M 0 5.0M 0% /run/lock /dev/xvda15 105M 6.1M 99M 6% /boot/efi tmpfs 391M 4.0K 391M 1% /run/user/1000
What else can I check?
Thanks in advance, Srinivasa Pradeep
You can install CloudWatch agent to monitor parameters such as disk usage, cpu and log files. Are you using a burstable (t2/t3) instance type? If yes, your EC2 may have exhausted CPU credits. Check your CloudWatch for CPU credits level
I checked the Cloudwatch Agent to monitor CPU Credit balance and cpu credit usage. The CPU credit balance is constant at 576. The cpu credit usage is having a value between 0.0 and 0.8 and some burst value of 5.74. I dont think this is an alarming situation. Can you suggest please?