def _query(self, path, id):
self.uuid = scsiutil.gen_uuid_from_string(scsiutil.getuniqueserial(path))
self.location = self.uuid
self.vendor = scsiutil.getmanufacturer(path)
self.serial = scsiutil.getserial(path)
self.LUNid = id
self.size = scsiutil.getsize(path)
self.SCSIid = scsiutil.getSCSIid(path)
self.path = path
sm_config = util.default(self, "sm_config", lambda: {})
sm_config['LUNid'] = str(self.LUNid)
sm_config['SCSIid'] = self.SCSIid
self.sm_config = sm_config
def _loadvdis(self):
count = 0
if not os.path.exists(self.path):
return 0
for file in filter(self.match_lun, util.listdir(self.path)):
vdi_path = os.path.join(self.path,file)
LUNid = file.replace("LUN","")
uuid = scsiutil.gen_uuid_from_string(scsiutil.getuniqueserial(vdi_path))
obj = self.vdi(uuid)
obj._query(vdi_path, LUNid)
self.vdis[uuid] = obj
self.physical_size += obj.size
count += 1
return count
def _query(self, path, id):
self.uuid = scsiutil.gen_uuid_from_string(
scsiutil.getuniqueserial(path))
self.location = self.uuid
self.vendor = scsiutil.getmanufacturer(path)
self.serial = scsiutil.getserial(path)
self.LUNid = id
self.size = scsiutil.getsize(path)
self.SCSIid = scsiutil.getSCSIid(path)
self.path = path
sm_config = util.default(self, "sm_config", lambda: {})
sm_config['LUNid'] = str(self.LUNid)
sm_config['SCSIid'] = self.SCSIid
self.sm_config = sm_config
def _loadvdis(self):
count = 0
if not os.path.exists(self.path):
return 0
for file in filter(self.match_lun, util.listdir(self.path)):
vdi_path = os.path.join(self.path,file)
LUNid = file.replace("LUN","")
uuid = scsiutil.gen_uuid_from_string(scsiutil.getuniqueserial(vdi_path))
obj = self.vdi(uuid)
obj._query(vdi_path, LUNid)
self.vdis[uuid] = obj
self.physical_size += obj.size
count += 1
return count
def _query(self, path, id, uuid=None, scsi_id=None):
"""Overloaded function with mostly duplicated code"""
if uuid:
self.uuid = uuid
else:
util.SMlog("RawHBA: uuid should not be generated..")
self.uuid = scsiutil.gen_uuid_from_string(
scsiutil.getuniqueserial(path)
)
if scsi_id:
self.SCSIid = scsi_id
else:
# It is usually unnecessary to calculate it again but scsi_id
# is used as a flag in this function and we cannot guarantee
# this info is already available at call time
self.SCSIid = scsiutil.getSCSIid(path)
self.location = self.uuid
self.vendor = scsiutil.getmanufacturer(path)
self.serial = scsiutil.getserial(path)
self.LUNid = id
# Handle resize done at the array size. The resize gets reflected
# only when the vdi is not in detached state. Do this if we the vdi
# is known to xapi
try:
vdi_ref = self.sr.session.xenapi.VDI.get_by_uuid(self.uuid)
# Check if the vbd is not in attached state, do a LUN rescan
# to reflect the array LUN
dev = [path]
if scsi_id:
# We want all the devices with this scsi_id
dev = scsiutil._genReverseSCSIidmap(scsi_id)
if self.sr.srcmd.cmd == "vdi_attach":
scsiutil.refreshdev(dev)
elif not B_util.is_vdi_attached(self.sr.session, vdi_ref):
scsiutil.refreshdev(dev)
except:
pass
self.size = scsiutil.getsize(path)
self.path = path
sm_config = util.default(self, "sm_config", lambda: {})
sm_config['LUNid'] = str(self.LUNid)
sm_config['SCSIid'] = self.SCSIid
# Make sure to use kernel blkback (not blktap3) for raw LUNs
sm_config['backend-kind'] = 'vbd'
self.sm_config = sm_config
def _query(self, path, id, uuid=None, scsi_id=None):
"""Overloaded function with mostly duplicated code"""
if uuid:
self.uuid = uuid
else:
util.SMlog("RawHBA: uuid should not be generated..")
self.uuid = scsiutil.gen_uuid_from_string(
scsiutil.getuniqueserial(path)
)
if scsi_id:
self.SCSIid = scsi_id
else:
# It is usually unnecessary to calculate it again but scsi_id
# is used as a flag in this function and we cannot guarantee
# this info is already available at call time
self.SCSIid = scsiutil.getSCSIid(path)
self.location = self.uuid
self.vendor = scsiutil.getmanufacturer(path)
self.serial = scsiutil.getserial(path)
self.LUNid = id
# Handle resize done at the array size. The resize gets reflected
# only when the vdi is not in detached state. Do this if we the vdi
# is known to xapi
try:
vdi_ref = self.sr.session.xenapi.VDI.get_by_uuid(self.uuid)
# Check if the vbd is not in attached state, do a LUN rescan
# to reflect the array LUN
dev = [path]
if scsi_id:
# We want all the devices with this scsi_id
dev = scsiutil._genReverseSCSIidmap(scsi_id)
if self.sr.srcmd.cmd == "vdi_attach":
scsiutil.refreshdev(dev)
elif not B_util.is_vdi_attached(self.sr.session, vdi_ref):
scsiutil.refreshdev(dev)
except:
pass
self.size = scsiutil.getsize(path)
self.path = path
sm_config = util.default(self, "sm_config", lambda: {})
sm_config['LUNid'] = str(self.LUNid)
sm_config['SCSIid'] = self.SCSIid
# Make sure to use kernel blkback (not blktap3) for raw LUNs
sm_config['backend-kind'] = 'vbd'
self.sm_config = sm_config
def _loadvdis(self):
if self.vdis:
return
self._init_hbadict()
count = 0
for key in self.hbadict.iterkeys():
vdi_path = os.path.join("/dev",key)
if not self.devs.has_key(vdi_path):
continue
uuid = scsiutil.gen_uuid_from_string(scsiutil.getuniqueserial(vdi_path))
obj = self.vdi(uuid)
path = self.mpathmodule.path(scsiutil.getSCSIid(vdi_path))
ids = self.devs[vdi_path]
obj._query(vdi_path, ids[4])
self.vdis[uuid] = obj
self.physical_size += obj.size
count += 1
return count
def _loadvdis(self):
if self.vdis:
return
self._init_hbadict()
count = 0
for key in self.hbadict.iterkeys():
vdi_path = os.path.join("/dev",key)
if vdi_path not in self.devs:
continue
uuid = scsiutil.gen_uuid_from_string(scsiutil.getuniqueserial(vdi_path))
obj = self.vdi(uuid)
path = self.mpathmodule.path(scsiutil.getSCSIid(vdi_path))
ids = self.devs[vdi_path]
obj._query(vdi_path, ids[4])
self.vdis[uuid] = obj
self.physical_size += obj.size
count += 1
return count
def _loadvdis(self):
if self.cmd not in NEEDS_LOADVDIS:
return 0
if self.vdis:
return
self._init_hbadict()
count = 0
self.physical_size = 0
root_dev_id = util.getrootdevID()
xapi_session = self.session.xenapi
known_scsid = {} # dict of ids processed within the following loop
for key in self.hbadict.iterkeys():
# We need a fresh sm_config everytime because it is modified
# inside this loop
sm_config = xapi_session.SR.get_sm_config(self.sr_ref)
# The way we create vdi_path and the following check are
# not clear at all
vdi_path = os.path.join("/dev", key)
if vdi_path not in self.devs:
continue
scsi_id = scsiutil.getSCSIid(vdi_path)
if scsi_id == root_dev_id:
util.SMlog("Skipping root device %s" % scsi_id)
continue
# Avoid false positives: this SR can already contain this
# SCSIid during scan.
scsi_key = "scsi-" + scsi_id
if scsi_key in sm_config:
# if we know about this scsid we can skip this specific dev
if scsi_key in known_scsid:
util.SMlog("This SCSI id (%s) is already added" % scsi_id)
continue
else:
# marked as known to avoid adding it again to sm_config
known_scsid[scsi_key] = ""
elif util.test_SCSIid(self.session, None, scsi_id):
util.SMlog("This SCSI id (%s) is used by another SR" % scsi_id)
continue
# getuniqueserial invokes again getSCSIid -> Fix!
uuid = scsiutil.gen_uuid_from_string(
scsiutil.getuniqueserial(vdi_path))
# We could have checked the SCSIid but the dictionary has
# uuid as key.
# We have already checked known_scsid, though. This block is
# supposed to be always False
if uuid in self.vdis:
util.SMlog("Warning: unexpected code block reached with"
" uuid = %s" % scsi_id)
continue
obj = self.vdi(uuid)
path = self.mpathmodule.path(scsi_id)
ids = self.devs[vdi_path]
obj._query(vdi_path, ids[4], uuid, scsi_id)
self.vdis[uuid] = obj
self.physical_size += obj.size
count += 1
# If we know about it no need to add to sm_config
if scsi_key in known_scsid:
continue
# Prepare multipathing and make the other SRs know this SCSIid
# is reserved.
# Its counterpart is vdi_delete
try:
xapi_session.SR.add_to_sm_config(self.sr_ref, scsi_key, uuid)
known_scsid[scsi_key] = ""
except:
util.SMlog("Warning: add_to_sm_config failed unexpectedly")
return count
def _loadvdis(self):
if self.cmd not in NEEDS_LOADVDIS:
return 0
if self.vdis:
return
self._init_hbadict()
count = 0
self.physical_size = 0
root_dev_id = util.getrootdevID()
xapi_session = self.session.xenapi
known_scsid = {} # dict of ids processed within the following loop
for key in self.hbadict.iterkeys():
# We need a fresh sm_config everytime because it is modified
# inside this loop
sm_config = xapi_session.SR.get_sm_config(self.sr_ref)
# The way we create vdi_path and the following check are
# not clear at all
vdi_path = os.path.join("/dev",key)
if not self.devs.has_key(vdi_path):
continue
scsi_id = scsiutil.getSCSIid(vdi_path)
if scsi_id == root_dev_id:
util.SMlog("Skipping root device %s" %scsi_id)
continue
# Avoid false positives: this SR can already contain this
# SCSIid during scan.
scsi_key = "scsi-" + scsi_id
if sm_config.has_key(scsi_key):
# if we know about this scsid we can skip this specific dev
if known_scsid.has_key(scsi_key):
util.SMlog("This SCSI id (%s) is already added" %scsi_id)
continue
else:
# marked as known to avoid adding it again to sm_config
known_scsid[scsi_key] = ""
elif util.test_SCSIid(self.session, None, scsi_id):
util.SMlog("This SCSI id (%s) is used by another SR" %scsi_id)
continue
# getuniqueserial invokes again getSCSIid -> Fix!
uuid = scsiutil.gen_uuid_from_string(
scsiutil.getuniqueserial(vdi_path)
)
# We could have checked the SCSIid but the dictionary has
# uuid as key.
# We have already checked known_scsid, though. This block is
# supposed to be always False
if self.vdis.has_key(uuid):
util.SMlog("Warning: unexpected code block reached with"
" uuid = %s" %scsi_id)
continue
obj = self.vdi(uuid)
path = self.mpathmodule.path(scsi_id)
ids = self.devs[vdi_path]
obj._query(vdi_path, ids[4], uuid, scsi_id)
self.vdis[uuid] = obj
self.physical_size += obj.size
count += 1
# If we know about it no need to add to sm_config
if known_scsid.has_key(scsi_key):
continue
# Prepare multipathing and make the other SRs know this SCSIid
# is reserved.
# Its counterpart is vdi_delete
try:
xapi_session.SR.add_to_sm_config(self.sr_ref, scsi_key, uuid)
known_scsid[scsi_key] = ""
except:
util.SMlog("Warning: add_to_sm_config failed unexpectedly")
return count