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by doanerock 1890 days ago
When there is a hardware failure, do you have to rebuild or does the original vm come back in minutes/hours/days?
1 comments
bdcravens 1890 days ago
I believe the instance goes away. If you've persisted data to EBS, you can attach the volume to a different instance. Anything outside of EBS is lost. However, if you created an AMI (AWS Machine Image), you can launch a new instance from that. (but it's a snapshot, not a live image, so it'll be only as up to date as it was when saved)
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ncsurfus 1890 days ago
The instance isn’t terminated (gone). It’s either shutdown or rebooted depending on the type of hardware failure.
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bdcravens 1890 days ago
It doesn't get transferred to a different physical instance, right?
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christrotman 1890 days ago
I have never seen it migrated to a different instance type, but it would be running on a different physical server.
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NikolaeVarius 1890 days ago
Why would anyone even care
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bdcravens 1890 days ago
I think many would make assumptions about the state of the instance and their application, which are likely to be wrong.
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ncsurfus 1888 days ago
Some virtualization platforms support live migrations (hyper-v and ESXi), but this isn’t something AWS supports (afaik). Anytime your instance is stopped/started or rebooted then you may end up on a different physical host.
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