def _tpg_lun_of(tpg, pool_name, vol_name):
"""
Return a object of LUN for given pool and volume.
If not exist, create one.
"""
mod = pool_module(pool_name)
# get wwn of volume so LIO can export as vpd83 info
vol_serial = mod.vol_info(pool_name, vol_name).uuid
# only add new SO if it doesn't exist
# so.name concats pool & vol names separated by ':'
so_name = mod.get_so_name(pool_name, vol_name)
try:
so = BlockStorageObject(so_name)
except RTSLibError:
so = BlockStorageObject(so_name,
dev=mod.get_dev_path(pool_name, vol_name))
so.wwn = vol_serial
# export useful scsi model if kernel > 3.8
with ignored(RTSLibError):
so.set_attribute("emulate_model_alias", '1')
# only add tpg lun if it doesn't exist
for tmp_lun in tpg.luns:
if tmp_lun.storage_object.name == so.name and \
tmp_lun.storage_object.plugin == 'block':
return tmp_lun
else:
return LUN(tpg, storage_object=so)
def _tpg_lun_of(tpg, pool_name, vol_name):
"""
Return a object of LUN for given lvm lv.
If not exist, create one.
"""
# get wwn of volume so LIO can export as vpd83 info
vg_name, thin_pool = get_vg_lv(pool_name)
with vgopen(vg_name) as vg:
vol_serial = vg.lvFromName(vol_name).getUuid()
# only add new SO if it doesn't exist
# so.name concats pool & vol names separated by ':'
so_name = "%s:%s" % (vg_name, vol_name)
try:
so = BlockStorageObject(so_name)
except RTSLibError:
so = BlockStorageObject(
so_name, dev="/dev/%s/%s" % (vg_name, vol_name))
so.wwn = vol_serial
# export useful scsi model if kernel > 3.8
with ignored(RTSLibError):
so.set_attribute("emulate_model_alias", '1')
# only add tpg lun if it doesn't exist
for tmp_lun in tpg.luns:
if tmp_lun.storage_object.name == so.name and \
tmp_lun.storage_object.plugin == 'block':
return tmp_lun
else:
return LUN(tpg, storage_object=so)
def _tpg_lun_of(tpg, pool_name, vol_name):
"""
Return a object of LUN for given lvm lv.
If not exist, create one.
"""
# get wwn of volume so LIO can export as vpd83 info
vg_name, thin_pool = get_vg_lv(pool_name)
vol_serial = bd.lvm.lvinfo(vg_name, vol_name).uuid
# only add new SO if it doesn't exist
# so.name concats pool & vol names separated by ':'
so_name = "%s:%s" % (vg_name, vol_name)
try:
so = BlockStorageObject(so_name)
except RTSLibError:
so = BlockStorageObject(so_name,
dev="/dev/%s/%s" % (vg_name, vol_name))
so.wwn = vol_serial
# export useful scsi model if kernel > 3.8
with ignored(RTSLibError):
so.set_attribute("emulate_model_alias", '1')
# only add tpg lun if it doesn't exist
for tmp_lun in tpg.luns:
if tmp_lun.storage_object.name == so.name and \
tmp_lun.storage_object.plugin == 'block':
return tmp_lun
else:
return LUN(tpg, storage_object=so)
def destroy(req, pool, name):
with ignored(RTSLibNotInCFS):
fm = FabricModule('iscsi')
t = Target(fm, target_name, mode='lookup')
tpg = TPG(t, 1, mode='lookup')
so_name = get_so_name(pool, name)
if so_name in (lun.storage_object.name for lun in tpg.luns):
raise TargetdError(
TargetdError.VOLUME_MASKED, "Volume '%s' cannot be "
"removed while exported" % name)
pool_module(pool).destroy(req, pool, name)
def destroy(req, pool, name):
with ignored(RTSLibNotInCFS):
fm = FabricModule('iscsi')
t = Target(fm, target_name, mode='lookup')
tpg = TPG(t, 1, mode='lookup')
vg_name, lv_pool = get_vg_lv(pool)
so_name = "%s:%s" % (vg_name, name)
if so_name in (lun.storage_object.name for lun in tpg.luns):
raise TargetdError(TargetdError.VOLUME_MASKED,
"Volume '%s' cannot be "
"removed while exported" % name)
with vgopen(get_vg_lv(pool)[0]) as vg:
vg.lvFromName(name).remove()
def destroy(req, pool, name):
with ignored(RTSLibNotInCFS):
fm = FabricModule('iscsi')
t = Target(fm, target_name, mode='lookup')
tpg = TPG(t, 1, mode='lookup')
vg_name, lv_pool = get_vg_lv(pool)
so_name = "%s:%s" % (vg_name, name)
if so_name in (lun.storage_object.name for lun in tpg.luns):
raise TargetdError(
TargetdError.VOLUME_MASKED, "Volume '%s' cannot be "
"removed while exported" % name)
with vgopen(get_vg_lv(pool)[0]) as vg:
vg.lvFromName(name).remove()
def destroy(req, pool, name):
mod = pool_module(pool)
if not check_vol_exists(req, pool, name):
raise TargetdError(TargetdError.NOT_FOUND_VOLUME,
"Volume %s not found in pool %s" % (name, pool))
with ignored(RTSLibNotInCFS):
fm = FabricModule('iscsi')
t = Target(fm, target_name, mode='lookup')
tpg = TPG(t, 1, mode='lookup')
so_name = get_so_name(pool, name)
if so_name in (lun.storage_object.name for lun in tpg.luns):
raise TargetdError(TargetdError.VOLUME_MASKED,
"Volume '%s' cannot be "
"removed while exported" % name)
pool_module(pool).destroy(req, pool, name)
