find_dev_by_iqn fails to return the device as the below comparison fails
if ((isinstance(iqn, six.string_types) and outiqn == iqn) or
outiqn in iqn):
It should look for the subset of iqn in outiqn.
https://github.com/powervm/pypowervm/blob/master/pypowervm/tasks/hdisk/_iscsi.py#L75
2018-05-24 06:30:23.378 16532 WARNING pypowervm.tasks.hdisk._iscsi [req-cbdd7c32-b422-411b-b982-121642ae6cf7 ba76c27e1112207f0626de3fba476c7adc710437896584a5b0f6583b2421e138 f10cb9d10e0c494e9b03e60abd8138b1 - 00c4917bae0c4b46a6639c962083c3e4 00c4917bae0c4b46a6639c962083c3e4] Invalid device output: iqn.1986-03.com.ibm:2145.c387f15u41v7000.node2
2018-05-24 06:30:23.379 16532 WARNING pypowervm.tasks.hdisk._iscsi [req-cbdd7c32-b422-411b-b982-121642ae6cf7 ba76c27e1112207f0626de3fba476c7adc710437896584a5b0f6583b2421e138 f10cb9d10e0c494e9b03e60abd8138b1 - 00c4917bae0c4b46a6639c962083c3e4 00c4917bae0c4b46a6639c962083c3e4] Invalid device output: iqn.1986-03.com.ibm:2145.c387f15u41v7000.node1
2018-05-24 06:30:23.379 16532 ERROR pypowervm.tasks.hdisk._iscsi [req-cbdd7c32-b422-411b-b982-121642ae6cf7 ba76c27e1112207f0626de3fba476c7adc710437896584a5b0f6583b2421e138 f10cb9d10e0c494e9b03e60abd8138b1 - 00c4917bae0c4b46a6639c962083c3e4 00c4917bae0c4b46a6639c962083c3e4] Expected IQN [u'iqn.1986-03.com.ibm:2145.c387f15u41v7000.node2', u'iqn.1986-03.com.ibm:2145.c387f15u41v7000.node1'] not found on iscsi target [u'9.114.23.41:3260', u'9.114.23.42:3260']
