def load(self, sr_uuid):
driver = SR.driver('hba')
self.hbasr = driver(self.original_srcmd, sr_uuid)
# If this is a vdi command, don't initialise SR
if not (util.isVDICommand(self.original_srcmd.cmd)):
pbd = None
try:
pbd = util.find_my_pbd(self.session, self.host_ref,
self.sr_ref)
except:
pass
try:
if not self.dconf.has_key('SCSIid') and self.dconf.has_key(
'device'):
# UPGRADE FROM MIAMI: add SCSIid key to device_config
util.SMlog("Performing upgrade from Miami")
if not os.path.exists(self.dconf['device']):
raise xs_errors.XenError('InvalidDev')
SCSIid = scsiutil.getSCSIid(self.dconf['device'])
self.dconf['SCSIid'] = SCSIid
del self.dconf['device']
if pbd <> None:
device_config = self.session.xenapi.PBD.get_device_config(
pbd)
device_config['SCSIid'] = SCSIid
device_config['upgraded_from_miami'] = 'true'
del device_config['device']
self.session.xenapi.PBD.set_device_config(
pbd, device_config)
except:
pass
if not self.dconf.has_key('SCSIid') or not self.dconf['SCSIid']:
print >> sys.stderr, self.hbasr.print_devs()
raise xs_errors.XenError('ConfigSCSIid')
self.SCSIid = self.dconf['SCSIid']
self._pathrefresh(LVHDoHBASR, load=False)
LVHDSR.LVHDSR.load(self, sr_uuid)
def load(self, sr_uuid):
driver = SR.driver('hba')
self.hbasr = driver(self.original_srcmd, sr_uuid)
# If this is a vdi command, don't initialise SR
if not (util.isVDICommand(self.original_srcmd.cmd)):
pbd = None
try:
pbd = util.find_my_pbd(self.session, self.host_ref, self.sr_ref)
except:
pass
try:
if not self.dconf.has_key('SCSIid') and self.dconf.has_key('device'):
# UPGRADE FROM MIAMI: add SCSIid key to device_config
util.SMlog("Performing upgrade from Miami")
if not os.path.exists(self.dconf['device']):
raise xs_errors.XenError('InvalidDev')
SCSIid = scsiutil.getSCSIid(self.dconf['device'])
self.dconf['SCSIid'] = SCSIid
del self.dconf['device']
if pbd <> None:
device_config = self.session.xenapi.PBD.get_device_config(pbd)
device_config['SCSIid'] = SCSIid
device_config['upgraded_from_miami'] = 'true'
del device_config['device']
self.session.xenapi.PBD.set_device_config(pbd, device_config)
except:
pass
if not self.dconf.has_key('SCSIid') or not self.dconf['SCSIid']:
print >>sys.stderr,self.hbasr.print_devs()
raise xs_errors.XenError('ConfigSCSIid')
self.SCSIid = self.dconf['SCSIid']
self._pathrefresh(LVHDoHBASR, load = False)
LVHDSR.LVHDSR.load(self, sr_uuid)
def load(self, sr_uuid):
if not sr_uuid:
# This is a probe call, generate a temp sr_uuid
sr_uuid = util.gen_uuid()
# If this is a vdi command, don't initialise SR
if util.isVDICommand(self.original_srcmd.cmd):
self.SCSIid = self.dconf['SCSIid']
else:
if self.original_srcmd.dconf.has_key('target'):
self.original_srcmd.dconf[
'targetlist'] = self.original_srcmd.dconf['target']
iscsi = BaseISCSI.BaseISCSISR(self.original_srcmd, sr_uuid)
self.iscsiSRs = []
self.iscsiSRs.append(iscsi)
saved_exc = None
if self.dconf['target'].find(
',') == 0 or self.dconf['targetIQN'] == "*":
# Instantiate multiple sessions
self.iscsiSRs = []
if self.dconf['targetIQN'] == "*":
IQN = "any"
else:
IQN = self.dconf['targetIQN']
dict = {}
IQNstring = ""
IQNs = []
try:
if self.dconf.has_key('multiSession'):
IQNs = self.dconf['multiSession'].split("|")
for IQN in IQNs:
if IQN:
dict[IQN] = ""
else:
try:
IQNs.remove(IQN)
except:
# Exceptions are not expected but just in case
pass
# Order in multiSession must be preserved. It is important for dual-controllers.
# IQNstring cannot be built with a dictionary iteration because of this
IQNstring = self.dconf['multiSession']
else:
for tgt in self.dconf['target'].split(','):
try:
tgt_ip = util._convertDNS(tgt)
except:
raise xs_errors.XenError('DNSError')
iscsilib.ensure_daemon_running_ok(iscsi.localIQN)
map = iscsilib.discovery(tgt_ip,
iscsi.port,
iscsi.chapuser,
iscsi.chappassword,
targetIQN=IQN)
util.SMlog("Discovery for IP %s returned %s" %
(tgt, map))
for i in range(0, len(map)):
(portal, tpgt, iqn) = map[i]
(ipaddr, port) = iscsilib.parse_IP_port(portal)
try:
util._testHost(ipaddr, long(port),
'ISCSITarget')
except:
util.SMlog(
"Target Not reachable: (%s:%s)" %
(ipaddr, port))
continue
key = "%s,%s,%s" % (ipaddr, port, iqn)
dict[key] = ""
# Again, do not mess up with IQNs order. Dual controllers will benefit from that
if IQNstring == "":
# Compose the IQNstring first
for key in dict.iterkeys():
IQNstring += "%s|" % key
# Reinitialize and store iterator
key_iterator = dict.iterkeys()
else:
key_iterator = IQNs
# Now load the individual iSCSI base classes
for key in key_iterator:
(ipaddr, port, iqn) = key.split(',')
srcmd_copy = copy.deepcopy(self.original_srcmd)
srcmd_copy.dconf['target'] = ipaddr
srcmd_copy.dconf['targetIQN'] = iqn
srcmd_copy.dconf['multiSession'] = IQNstring
util.SMlog("Setting targetlist: %s" %
srcmd_copy.dconf['targetlist'])
self.iscsiSRs.append(
BaseISCSI.BaseISCSISR(srcmd_copy, sr_uuid))
pbd = util.find_my_pbd(self.session, self.host_ref,
self.sr_ref)
if pbd <> None and not self.dconf.has_key('multiSession'):
dconf = self.session.xenapi.PBD.get_device_config(pbd)
dconf['multiSession'] = IQNstring
self.session.xenapi.PBD.set_device_config(pbd, dconf)
except Exception as exc:
util.logException("LVHDoISCSISR.load")
saved_exc = exc
try:
self.iscsi = self.iscsiSRs[0]
except IndexError as exc:
if isinstance(saved_exc, SR.SROSError):
raise saved_exc # pylint: disable-msg=E0702
elif isinstance(saved_exc, Exception):
raise xs_errors.XenError('SMGeneral', str(saved_exc))
else:
raise xs_errors.XenError('SMGeneral', str(exc))
# Be extremely careful not to throw exceptions here since this function
# is the main one used by all operations including probing and creating
pbd = None
try:
pbd = util.find_my_pbd(self.session, self.host_ref,
self.sr_ref)
except:
pass
# Apart from the upgrade case, user must specify a SCSIid
if not self.dconf.has_key('SCSIid'):
# Dual controller issue
self.LUNs = {} # Dict for LUNs from all the iscsi objects
for ii in range(0, len(self.iscsiSRs)):
self.iscsi = self.iscsiSRs[ii]
self._LUNprint(sr_uuid)
for key in self.iscsi.LUNs:
self.LUNs[key] = self.iscsi.LUNs[key]
self.print_LUNs_XML()
self.iscsi = self.iscsiSRs[0] # back to original value
raise xs_errors.XenError('ConfigSCSIid')
self.SCSIid = self.dconf['SCSIid']
# This block checks if the first iscsi target contains the right SCSIid.
# If not it scans the other iscsi targets because chances are that more
# than one controller is present
dev_match = False
forced_login = False
# No need to check if only one iscsi target is present
if len(self.iscsiSRs) == 1:
pass
else:
target_success = False
attempt_discovery = False
for iii in range(0, len(self.iscsiSRs)):
# Check we didn't leave any iscsi session open
# If exceptions happened before, the cleanup function has worked on the right target.
if forced_login == True:
try:
iscsilib.ensure_daemon_running_ok(
self.iscsi.localIQN)
iscsilib.logout(self.iscsi.target,
self.iscsi.targetIQN)
forced_login = False
except:
raise xs_errors.XenError('ISCSILogout')
self.iscsi = self.iscsiSRs[iii]
util.SMlog("path %s" % self.iscsi.path)
util.SMlog("iscsci data: targetIQN %s, portal %s" %
(self.iscsi.targetIQN, self.iscsi.target))
iscsilib.ensure_daemon_running_ok(self.iscsi.localIQN)
if not iscsilib._checkTGT(self.iscsi.targetIQN):
attempt_discovery = True
try:
# Ensure iscsi db has been populated
map = iscsilib.discovery(
self.iscsi.target,
self.iscsi.port,
self.iscsi.chapuser,
self.iscsi.chappassword,
targetIQN=self.iscsi.targetIQN)
if len(map) == 0:
util.SMlog(
"Discovery for iscsi data targetIQN %s,"
" portal %s returned empty list"
" Trying another path if available" %
(self.iscsi.targetIQN, self.iscsi.target))
continue
except:
util.SMlog(
"Discovery failed for iscsi data targetIQN"
" %s, portal %s. Trying another path if"
" available" %
(self.iscsi.targetIQN, self.iscsi.target))
continue
try:
iscsilib.login(self.iscsi.target,
self.iscsi.targetIQN,
self.iscsi.chapuser,
self.iscsi.chappassword,
self.iscsi.incoming_chapuser,
self.iscsi.incoming_chappassword,
self.mpath == "true")
except:
util.SMlog(
"Login failed for iscsi data targetIQN %s,"
" portal %s. Trying another path"
" if available" %
(self.iscsi.targetIQN, self.iscsi.target))
continue
target_success = True
forced_login = True
# A session should be active.
if not util.wait_for_path(self.iscsi.path,
BaseISCSI.MAX_TIMEOUT):
util.SMlog("%s has no associated LUNs" %
self.iscsi.targetIQN)
continue
scsiid_path = "/dev/disk/by-id/scsi-" + self.SCSIid
if not util.wait_for_path(scsiid_path,
BaseISCSI.MAX_TIMEOUT):
util.SMlog("%s not found" % scsiid_path)
continue
for file in filter(self.iscsi.match_lun,
util.listdir(self.iscsi.path)):
lun_path = os.path.join(self.iscsi.path, file)
lun_dev = scsiutil.getdev(lun_path)
try:
lun_scsiid = scsiutil.getSCSIid(lun_dev)
except:
util.SMlog(
"getSCSIid failed on %s in iscsi %s: LUN"
" offline or iscsi path down" %
(lun_dev, self.iscsi.path))
continue
util.SMlog("dev from lun %s %s" %
(lun_dev, lun_scsiid))
if lun_scsiid == self.SCSIid:
util.SMlog("lun match in %s" % self.iscsi.path)
dev_match = True
# No more need to raise ISCSITarget exception.
# Resetting attempt_discovery
attempt_discovery = False
break
if dev_match:
if iii == 0:
break
util.SMlog("IQN reordering needed")
new_iscsiSRs = []
IQNs = {}
IQNstring = ""
# iscsiSRs can be seen as a circular buffer: the head now is the matching one
for kkk in range(iii, len(self.iscsiSRs)) + range(
0, iii):
new_iscsiSRs.append(self.iscsiSRs[kkk])
ipaddr = self.iscsiSRs[kkk].target
port = self.iscsiSRs[kkk].port
iqn = self.iscsiSRs[kkk].targetIQN
key = "%s,%s,%s" % (ipaddr, port, iqn)
# The final string must preserve the order without repetition
if not IQNs.has_key(key):
IQNs[key] = ""
IQNstring += "%s|" % key
util.SMlog("IQNstring is now %s" % IQNstring)
self.iscsiSRs = new_iscsiSRs
util.SMlog("iqn %s is leading now" %
self.iscsiSRs[0].targetIQN)
# Updating pbd entry, if any
try:
pbd = util.find_my_pbd(self.session, self.host_ref,
self.sr_ref)
if pbd <> None and self.dconf.has_key(
'multiSession'):
util.SMlog("Updating multiSession in PBD")
dconf = self.session.xenapi.PBD.get_device_config(
pbd)
dconf['multiSession'] = IQNstring
self.session.xenapi.PBD.set_device_config(
pbd, dconf)
except:
pass
break
if not target_success and attempt_discovery:
raise xs_errors.XenError('ISCSITarget')
# Check for any unneeded open iscsi sessions
if forced_login == True:
try:
iscsilib.ensure_daemon_running_ok(self.iscsi.localIQN)
iscsilib.logout(self.iscsi.target,
self.iscsi.targetIQN)
forced_login = False
except:
raise xs_errors.XenError('ISCSILogout')
self._pathrefresh(LVHDoISCSISR, load=False)
LVHDSR.LVHDSR.load(self, sr_uuid)
def load(self, sr_uuid):
if not sr_uuid:
# This is a probe call, generate a temp sr_uuid
sr_uuid = util.gen_uuid()
# If this is a vdi command, don't initialise SR
if util.isVDICommand(self.original_srcmd.cmd):
self.SCSIid = self.dconf['SCSIid']
else:
if self.original_srcmd.dconf.has_key('target'):
self.original_srcmd.dconf['targetlist'] = self.original_srcmd.dconf['target']
iscsi = BaseISCSI.BaseISCSISR(self.original_srcmd, sr_uuid)
self.iscsiSRs = []
self.iscsiSRs.append(iscsi)
saved_exc = None
if self.dconf['target'].find(',') == 0 or self.dconf['targetIQN'] == "*":
# Instantiate multiple sessions
self.iscsiSRs = []
if self.dconf['targetIQN'] == "*":
IQN = "any"
else:
IQN = self.dconf['targetIQN']
dict = {}
IQNstring = ""
IQNs = []
try:
if self.dconf.has_key('multiSession'):
IQNs = self.dconf['multiSession'].split("|")
for IQN in IQNs:
if IQN:
dict[IQN] = ""
else:
try:
IQNs.remove(IQN)
except:
# Exceptions are not expected but just in case
pass
# Order in multiSession must be preserved. It is important for dual-controllers.
# IQNstring cannot be built with a dictionary iteration because of this
IQNstring = self.dconf['multiSession']
else:
for tgt in self.dconf['target'].split(','):
try:
tgt_ip = util._convertDNS(tgt)
except:
raise xs_errors.XenError('DNSError')
iscsilib.ensure_daemon_running_ok(iscsi.localIQN)
map = iscsilib.discovery(tgt_ip,iscsi.port,iscsi.chapuser,iscsi.chappassword,targetIQN=IQN)
util.SMlog("Discovery for IP %s returned %s" % (tgt,map))
for i in range(0,len(map)):
(portal,tpgt,iqn) = map[i]
(ipaddr, port) = iscsilib.parse_IP_port(portal)
try:
util._testHost(ipaddr, long(port), 'ISCSITarget')
except:
util.SMlog("Target Not reachable: (%s:%s)" % (ipaddr, port))
continue
key = "%s,%s,%s" % (ipaddr,port,iqn)
dict[key] = ""
# Again, do not mess up with IQNs order. Dual controllers will benefit from that
if IQNstring == "":
# Compose the IQNstring first
for key in dict.iterkeys(): IQNstring += "%s|" % key
# Reinitialize and store iterator
key_iterator = dict.iterkeys()
else:
key_iterator = IQNs
# Now load the individual iSCSI base classes
for key in key_iterator:
(ipaddr,port,iqn) = key.split(',')
srcmd_copy = copy.deepcopy(self.original_srcmd)
srcmd_copy.dconf['target'] = ipaddr
srcmd_copy.dconf['targetIQN'] = iqn
srcmd_copy.dconf['multiSession'] = IQNstring
util.SMlog("Setting targetlist: %s" % srcmd_copy.dconf['targetlist'])
self.iscsiSRs.append(BaseISCSI.BaseISCSISR(srcmd_copy, sr_uuid))
pbd = util.find_my_pbd(self.session, self.host_ref, self.sr_ref)
if pbd <> None and not self.dconf.has_key('multiSession'):
dconf = self.session.xenapi.PBD.get_device_config(pbd)
dconf['multiSession'] = IQNstring
self.session.xenapi.PBD.set_device_config(pbd, dconf)
except Exception as exc:
util.logException("LVHDoISCSISR.load")
saved_exc = exc
try:
self.iscsi = self.iscsiSRs[0]
except IndexError as exc:
if isinstance(saved_exc, SR.SROSError):
raise saved_exc # pylint: disable-msg=E0702
elif isinstance(saved_exc, Exception):
raise xs_errors.XenError('SMGeneral', str(saved_exc))
else:
raise xs_errors.XenError('SMGeneral', str(exc))
# Be extremely careful not to throw exceptions here since this function
# is the main one used by all operations including probing and creating
pbd = None
try:
pbd = util.find_my_pbd(self.session, self.host_ref, self.sr_ref)
except:
pass
# Apart from the upgrade case, user must specify a SCSIid
if not self.dconf.has_key('SCSIid'):
# Dual controller issue
self.LUNs = {} # Dict for LUNs from all the iscsi objects
for ii in range(0, len(self.iscsiSRs)):
self.iscsi = self.iscsiSRs[ii]
self._LUNprint(sr_uuid)
for key in self.iscsi.LUNs:
self.LUNs[key] = self.iscsi.LUNs[key]
self.print_LUNs_XML()
self.iscsi = self.iscsiSRs[0] # back to original value
raise xs_errors.XenError('ConfigSCSIid')
self.SCSIid = self.dconf['SCSIid']
# This block checks if the first iscsi target contains the right SCSIid.
# If not it scans the other iscsi targets because chances are that more
# than one controller is present
dev_match = False
forced_login = False
# No need to check if only one iscsi target is present
if len(self.iscsiSRs) == 1:
pass
else:
target_success = False
attempt_discovery = False
for iii in range(0, len(self.iscsiSRs)):
# Check we didn't leave any iscsi session open
# If exceptions happened before, the cleanup function has worked on the right target.
if forced_login == True:
try:
iscsilib.ensure_daemon_running_ok(self.iscsi.localIQN)
iscsilib.logout(self.iscsi.target, self.iscsi.targetIQN)
forced_login = False
except:
raise xs_errors.XenError('ISCSILogout')
self.iscsi = self.iscsiSRs[iii]
util.SMlog("path %s" %self.iscsi.path)
util.SMlog("iscsci data: targetIQN %s, portal %s" % (self.iscsi.targetIQN, self.iscsi.target))
iscsilib.ensure_daemon_running_ok(self.iscsi.localIQN)
if not iscsilib._checkTGT(self.iscsi.targetIQN):
attempt_discovery = True
try:
# Ensure iscsi db has been populated
map = iscsilib.discovery(
self.iscsi.target,
self.iscsi.port,
self.iscsi.chapuser,
self.iscsi.chappassword,
targetIQN=self.iscsi.targetIQN)
if len(map) == 0:
util.SMlog("Discovery for iscsi data targetIQN %s,"
" portal %s returned empty list"
" Trying another path if available" %
(self.iscsi.targetIQN,
self.iscsi.target))
continue
except:
util.SMlog("Discovery failed for iscsi data targetIQN"
" %s, portal %s. Trying another path if"
" available" %
(self.iscsi.targetIQN, self.iscsi.target))
continue
try:
iscsilib.login(self.iscsi.target,
self.iscsi.targetIQN,
self.iscsi.chapuser,
self.iscsi.chappassword,
self.iscsi.incoming_chapuser,
self.iscsi.incoming_chappassword,
self.mpath == "true")
except:
util.SMlog("Login failed for iscsi data targetIQN %s,"
" portal %s. Trying another path"
" if available" %
(self.iscsi.targetIQN, self.iscsi.target))
continue
target_success = True;
forced_login = True
# A session should be active.
if not util.wait_for_path(self.iscsi.path, BaseISCSI.MAX_TIMEOUT):
util.SMlog("%s has no associated LUNs" % self.iscsi.targetIQN)
continue
scsiid_path = "/dev/disk/by-id/scsi-" + self.SCSIid
if not util.wait_for_path(scsiid_path, BaseISCSI.MAX_TIMEOUT):
util.SMlog("%s not found" %scsiid_path)
continue
for file in filter(self.iscsi.match_lun, util.listdir(self.iscsi.path)):
lun_path = os.path.join(self.iscsi.path,file)
lun_dev = scsiutil.getdev(lun_path)
try:
lun_scsiid = scsiutil.getSCSIid(lun_dev)
except:
util.SMlog("getSCSIid failed on %s in iscsi %s: LUN"
" offline or iscsi path down" %
(lun_dev, self.iscsi.path))
continue
util.SMlog("dev from lun %s %s" %(lun_dev, lun_scsiid))
if lun_scsiid == self.SCSIid:
util.SMlog("lun match in %s" %self.iscsi.path)
dev_match = True
# No more need to raise ISCSITarget exception.
# Resetting attempt_discovery
attempt_discovery = False
break
if dev_match:
if iii == 0:
break
util.SMlog("IQN reordering needed")
new_iscsiSRs = []
IQNs = {}
IQNstring = ""
# iscsiSRs can be seen as a circular buffer: the head now is the matching one
for kkk in range(iii, len(self.iscsiSRs)) + range(0, iii):
new_iscsiSRs.append(self.iscsiSRs[kkk])
ipaddr = self.iscsiSRs[kkk].target
port = self.iscsiSRs[kkk].port
iqn = self.iscsiSRs[kkk].targetIQN
key = "%s,%s,%s" % (ipaddr,port,iqn)
# The final string must preserve the order without repetition
if not IQNs.has_key(key):
IQNs[key] = ""
IQNstring += "%s|" % key
util.SMlog("IQNstring is now %s" %IQNstring)
self.iscsiSRs = new_iscsiSRs
util.SMlog("iqn %s is leading now" %self.iscsiSRs[0].targetIQN)
# Updating pbd entry, if any
try:
pbd = util.find_my_pbd(self.session, self.host_ref, self.sr_ref)
if pbd <> None and self.dconf.has_key('multiSession'):
util.SMlog("Updating multiSession in PBD")
dconf = self.session.xenapi.PBD.get_device_config(pbd)
dconf['multiSession'] = IQNstring
self.session.xenapi.PBD.set_device_config(pbd, dconf)
except:
pass
break
if not target_success and attempt_discovery:
raise xs_errors.XenError('ISCSITarget')
# Check for any unneeded open iscsi sessions
if forced_login == True:
try:
iscsilib.ensure_daemon_running_ok(self.iscsi.localIQN)
iscsilib.logout(self.iscsi.target, self.iscsi.targetIQN)
forced_login = False
except:
raise xs_errors.XenError('ISCSILogout')
self._pathrefresh(LVHDoISCSISR, load = False)
LVHDSR.LVHDSR.load(self, sr_uuid)