def remove_PSCSI(self, rem_HCTL):
saved_pscsis = self.state_store.load_state('pscsi')
if not saved_pscsis:
return
# Remove the PSCSI
for pscsi_record in saved_pscsis.values():
if rem_HCTL == pscsi_record['physical_HCTL']:
pscsi_ref = XendPSCSI.get_by_HCTL(rem_HCTL)
XendAPIStore.get(pscsi_ref, "PSCSI").destroy()
self.save_PSCSIs()
return
def remove_PSCSI(self, rem_HCTL):
saved_pscsis = self.state_store.load_state('pscsi')
if not saved_pscsis:
return
# Remove the PSCSI
for pscsi_record in saved_pscsis.values():
if rem_HCTL == pscsi_record['physical_HCTL']:
pscsi_ref = XendPSCSI.get_by_HCTL(rem_HCTL)
XendAPIStore.get(pscsi_ref, "PSCSI").destroy()
self.save_PSCSIs()
physical_host = int(rem_HCTL.split(':')[0])
pscsi_HBA_ref = XendPSCSI_HBA.get_by_physical_host(physical_host)
if pscsi_HBA_ref:
if not XendAPIStore.get(pscsi_HBA_ref, 'PSCSI_HBA').get_PSCSIs():
XendAPIStore.get(pscsi_HBA_ref, 'PSCSI_HBA').destroy()
self.save_PSCSI_HBAs()
return
def save_PSCSIs(self):
pscsi_records = dict([(pscsi_uuid, XendAPIStore.get(
pscsi_uuid, "PSCSI").get_record())
for pscsi_uuid in XendPSCSI.get_all()])
self.state_store.save_state('pscsi', pscsi_records)
def get_PSCSI_refs(self):
return XendPSCSI.get_all()
def get_PSCSI_refs(self):
return XendPSCSI.get_all()
def save_PSCSIs(self):
pscsi_records = dict([
(pscsi_uuid, XendAPIStore.get(pscsi_uuid, "PSCSI").get_record())
for pscsi_uuid in XendPSCSI.get_all()
])
self.state_store.save_state('pscsi', pscsi_records)
def _init_PSCSIs(self):
# Initialise PSCSIs and PSCSI_HBAs
saved_pscsis = self.state_store.load_state('pscsi')
saved_pscsi_table = {}
if saved_pscsis:
for pscsi_uuid, pscsi_record in saved_pscsis.items():
try:
saved_pscsi_table[pscsi_record['scsi_id']] = pscsi_uuid
except KeyError:
pass
saved_pscsi_HBAs = self.state_store.load_state('pscsi_HBA')
saved_pscsi_HBA_table = {}
if saved_pscsi_HBAs:
for pscsi_HBA_uuid, pscsi_HBA_record in saved_pscsi_HBAs.items():
try:
physical_host = int(pscsi_HBA_record['physical_host'])
saved_pscsi_HBA_table[physical_host] = pscsi_HBA_uuid
except (KeyError, ValueError):
pass
pscsi_table = {}
pscsi_HBA_table = {}
pscsi_records = []
for pscsi_mask in xendoptions().get_pscsi_device_mask():
pscsi_records += vscsi_util.get_all_scsi_devices(pscsi_mask)
log.debug("pscsi record count: %s" % len(pscsi_records))
for pscsi_record in pscsi_records:
scsi_id = pscsi_record['scsi_id']
if scsi_id:
saved_HBA_uuid = None
pscsi_uuid = saved_pscsi_table.get(scsi_id, None)
if pscsi_uuid is None:
pscsi_uuid = uuid.createString()
saved_pscsi_table[scsi_id] = pscsi_uuid
else:
try:
saved_HBA_uuid = saved_pscsis[pscsi_uuid].get(
'HBA', None)
except KeyError:
log.warn(
"Multi-path SCSI devices are not supported for XenAPI"
)
return
physical_host = int(
pscsi_record['physical_HCTL'].split(':')[0])
if pscsi_HBA_table.has_key(physical_host):
pscsi_HBA_uuid = pscsi_HBA_table[physical_host]
elif saved_pscsi_HBA_table.has_key(physical_host):
pscsi_HBA_uuid = saved_pscsi_HBA_table[physical_host]
pscsi_HBA_table[physical_host] = pscsi_HBA_uuid
else:
pscsi_HBA_uuid = uuid.createString()
pscsi_HBA_table[physical_host] = pscsi_HBA_uuid
if saved_HBA_uuid is not None and \
saved_HBA_uuid != pscsi_HBA_uuid:
log.debug('The PSCSI(%s) host number was changed', scsi_id)
pscsi_record['HBA'] = pscsi_HBA_uuid
pscsi_table[pscsi_uuid] = pscsi_record
for pscsi_uuid, pscsi_record in pscsi_table.items():
XendPSCSI(pscsi_uuid, pscsi_record)
for physical_host, pscsi_HBA_uuid in pscsi_HBA_table.items():
XendPSCSI_HBA(pscsi_HBA_uuid, {'physical_host': physical_host})
