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> Detaching and reattaching EBS volumes can take 10s for healthy volumes to 20m for failed ones

Is there a source for the 20m time limit for failed EBS volumes? I experienced this at work for the first time recently but couldn't find anything documenting the 20m SLA (and it did take just about 20 full minutes).

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I'm not aware of any published source for this time limit, nor ways to reduce it.

The docs do say, however, "If the volume has been impaired for more than 20 minutes, you can contact the AWS Support Center." [0] which suggests its some expected cleanup/remount interval.

That is, it is something that we regularly encounter when EC2 instances fail, so we were sharing from personal experience.

[0] https://docs.aws.amazon.com/ebs/latest/userguide/work_volume...

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