AWS console not showing all instances during volume attach

Question

I do the following using AWS web console:

1. Attach EBS volume-A to instance-A. Make some changes to data on volume-A and detach it
2. Launch new instance-B (in the same zone as instance-A)
3. Try attach volume-A to the new instance-B. But the new instance does not appear in the instances list during attach volume process (dialog box).

If I try the same attach using command line EC2 API (volume-A and instance-B), it works fine!

Do you know if this is a bug in AWS web console or am I doing something wrong in the console? Tried page refresh in Step #3 but it still would not list the new instance.

Answer 1

In order to attach, both volumes has to be in the same zone. So if you are going to attach a volume into a instance check the zone of the instance's attached volume. If those are not matching create a new instance with the same zone as the zone of the volume that you need to attached.