After the amazon instance got unresponsive, we got into a situation that it is not reboot-able. Meaning – you reboot it, and it doesn’t react.
After writing to amazon forum, as we have no support, we got the following answer ( in 4 hours ).
We came across this issues on a couple of different products, times, severities. And we have came to a simple conclusion. Instance store is a bad way to host anything important.So here is our advise :Your instance is running on hardware that has become degraded.As the instance is ephemeral storage-backed, you will need to terminate it, and relaunch it from your AMI.Your EBS disks can be attached to your new instance.Apologies for any operational pain this may have caused.Best regards,XXX
- Just cut some time in your busy schedule with your SA, or simply do it yourself;
- write down the migration plan;
- start a fresh EBS instance ( for example from a alestic image );
- and migrate your app.