Comment 1 for bug 1766661

Also,
  Here is a list of other cinder drivers and libraries that assume that the host entry
is always there for attach and detach.

datacore/driver.py:357
datacore/iscsi.py:136:
datacore/fc.py:135:
dell_emc/vmax/masking.py:1079:
dell_emc/vmax/common.py:481:
dell_emc/vmax/fc.py:306:
dell_emc/xtremio.py:1278:
dell_emc/vnx/adapter.py:1299:
dell_emc/unity/adapter.py:295:
pure.py:1836:
huawei/hypermetro.py:184:
huawei/huawei_driver.py:1993:
kaminario/kaminario_common.py:835:
kaminario/kaminario_fc.py
kaminario/kaminario_iscsi.py
drbdmanagedrv.py
coprhd/scaleio.py
coprhd/iscsi.py
coprhd/fc.py
inspur/instorage/instorage_common.py
inspur/instorage/instorage_iscsi.py
inspur/instorage/instorage_fc.py
hpe/hpe_3par_iscsi.py
hpe/hpe_lefthand_iscsi.py
hpe/hpe_3par_fc.py
storpool.py
ibm/ibm_storage/ds8k_helper.py
ibm/ibm_storage/xiv_proxy.py
ibm/storwize_svc/storwize_svc_iscsi.py
ibm/storwize_svc/storwize_svc_fc.py
ibm/storwize_svc/storwize_svc_common.py
ibm/flashsystem_fc.py
ibm/flashsystem_iscsi.py
ibm/flashsystem_common.py