An EBS-backed instance can be suspended and resumed, similar to the operating system and applications on a laptop.  The current state of the EBS-backed instance is saved in a suspend operation and restored in a resume operation. Like instance store-backed instances, an EBS-backed instance can also be rebooted and terminated.
To suspend a running EBS-backed instance:
euca-stop-instances i-<nnnnnnnn>
To resume a suspended EBS-backed instance:
euca-start-instances i-<nnnnnnnn>
To reboot an EBS-backed instance:
euca-reboot-instances i-<nnnnnnnn>
To terminate an EBS-backed instance:
euca-terminate-instances i-<nnnnnnnn>