Comment 2 for bug 2020871

What availability zone does the volume exist in? The error message seems to indicate that the volume is reported to juju as being in an AZ that is not one where the instance can be provisioned. Generally, juju will only attach a volume to a machine if the machine can be provisioned in the same AZ as the volume.

I would have hoped that a suitable error message would have been displayed in status indicating why provisioning failed. You should not have had to dig into log messages.