man xm
STATES
The State field lists 6 states for a Xen Domain, and which ones the current
Domain is in.
r - running
The domain is currently running on a CPU
b - blocked
The domain is blocked, and not running or runnable. This can be caused
because the domain is waiting on IO (a traditional wait state) or has gone
to sleep because there was nothing else for it to do.
p - paused
The domain has been paused, usually occurring through the administrator
running xm pause. When in a paused state the domain will still consume
allocated resources like memory, but will not be eligible for scheduling by
the Xen hypervisor.
s - shutdown
The guest has requested to be shutdown, rebooted or suspended, and the
domain is in the process of being destroyed in response.
c - crashed
The domain has crashed, which is always a violent ending. Usually this
state can only occur if the domain has been configured not to restart on
crash. See xmdomain.cfg for more info.
d - dying
The domain is in process of dying, but hasn’t completely shutdown or
crashed.
