'Gets the IP addresses of all EVSs in HNAS.
:returns: dictionary with EVS information
.. code:: python
evs_info={
<IP1>: {evs_number: number identifying the EVS1 on HNAS},
<IP2>: {evs_number: number identifying the EVS2 on HNAS},'

def get_evs_info(self):

    evs_info = {}
    (out, err) = self._run_cmd('evsipaddr', '-l')
    out = out.split('\n')
    for line in out:
        if (('evs' in line) and ('admin' not in line)):
            ip = line.split()[3].strip()
            evs_info[ip] = {}
            evs_info[ip]['evs_number'] = line.split()[1].strip()
    return evs_info
