def _discover_initiator():
if vios_id in _ISCSI_INITIATORS and _ISCSI_INITIATORS[vios_id]:
return
else:
try:
initiator = hdisk.discover_iscsi_initiator(
adapter, vios_id)
_ISCSI_INITIATORS[vios_id] = initiator
except (pvm_exc.ISCSIDiscoveryFailed,
pvm_exc.JobRequestFailed) as e:
# TODO(chhagarw): handle differently based on
# error codes
LOG.error(e)
def get_iscsi_initiator(adapter):
"""Gets the iSCSI initiator.
This is looked up once at process start up. Stored in memory thereafter.
:param adapter: The pypowervm adapter.
:return: The initiator name. If the NovaLink is not capable of supporting
iSCSI, None will be returned.
"""
global _ISCSI_INITIATOR, _ISCSI_LOOKUP_COMPLETE
if not _ISCSI_LOOKUP_COMPLETE:
mgmt_w = partition.get_mgmt_partition(adapter)
if isinstance(mgmt_w, pvm_vios.VIOS):
_ISCSI_INITIATOR = hdisk.discover_iscsi_initiator(
adapter, mgmt_w.uuid).strip()
_ISCSI_LOOKUP_COMPLETE = True
return _ISCSI_INITIATOR