trouble attaching ebs volume to ec2 instance

Question

I am trying to attach a ebs volume to an ec2 instance, with this :

$response = $ec2->attach_volume($volume_id, $disp['instanceId'], '/dev/sdf');

It goes to "attaching" state, then to "attached" state, after few seconds, it goes back to "attaching" state.

Why ?

Answer 1

Possible just a bad EBS controller, but I have not used the SDKs for attaching volumes. May be better to ask this on the Amazon Dev Forums instead, their techs can take a look at it.