def safe_delete(self):
# flush dev's buf first
try:
if self.dev_file != "":
check_output([BLOCKDEV_CMD, "--flushbufs", self.dev_file])
except Exception:
pass
delete_path = os.path.join("/sys/class/scsi_device/", self.scsi_id, "device/delete")
write_file_entry(delete_path, "1\n")
def safe_delete(self):
# flush dev's buf first
try:
if self.dev_file != "":
check_output([BLOCKDEV_CMD, "--flushbufs", self.dev_file])
except Exception:
pass
delete_path = os.path.join("/sys/class/scsi_device/", self.scsi_id,
"device/delete")
write_file_entry(delete_path, "1\n")
def flush_page_cache(self):
"""flush page cache from memory"""
# sync
check_output(["/bin/sync"])
# clean cache
write_file_entry("/proc/sys/vm/drop_caches", "3\n")
def offline_dev(self, scsi_id):
state_path = os.path.join("/sys/class/scsi_device/", self.scsi_id, "device/state")
write_file_entry(state_path, "offline\n")
def rescan_dev(self):
'''rescan the device can update the device's state(including size) in host system'''
state_path = os.path.join("/sys/class/scsi_device/", self.scsi_id, "device/rescan")
write_file_entry(state_path, "1\n")
def flush_page_cache(self):
"""flush page cache from memory"""
# sync
check_output(["/bin/sync"])
# clean cache
write_file_entry("/proc/sys/vm/drop_caches", "3\n")
def del_group(self, bond_name, user="******"):
# check exist
group_name_list = self.group_name_list()
if bond_name not in group_name_list:
raise StorLeverError("%s not found" % bond_name, 404)
if bond_name == "bond0":
# if want to delete bond0, there must be no other
# group, because bonding driver would auto create bond0 interface
# if there is another bond interface beyond bond0
if (len(group_name_list) > 1) or \
(group_name_list[0] != bond_name):
raise StorLeverError("Other bonding group must be "
"deleted before bond0 can be deleted", 400)
bond_group = BondGroup(bond_name)
bond_slaves = bond_group.slaves
check_output([IFDOWN, bond_name])
# get mutex
with self.lock:
# change bond.conf
self._del_bond_from_conf(bond_name)
# modify the slaves conf, especial for the first one,
# copy the bond ip config to it
is_first = True
for slave in bond_slaves:
slave_object = EthInterface(slave)
if is_first:
slave_object.conf["IPADDR"] = \
bond_group.conf.get("IPADDR", "")
slave_object.conf["NETMASK"] = \
bond_group.conf.get("NETMASK", "")
slave_object.conf["GATEWAY"] = \
bond_group.conf.get("GATEWAY", "")
is_first = False
else:
slave_object.conf["IPADDR"] = ""
slave_object.conf["NETMASK"] = ""
slave_object.conf["GATEWAY"] = ""
slave_object.conf.delete("MASTER")
slave_object.conf.delete("SLAVE")
slave_object.save_conf()
# delete ifcfg-bond*
ifcfg_name = os.path.join(IF_CONF_PATH, "ifcfg-%s" % bond_name)
if os.path.isfile(ifcfg_name):
os.remove(ifcfg_name)
# restart network
if os.path.exists(BONDING_MASTERS):
write_file_entry(BONDING_MASTERS, "-%s\n" % bond_name)
for slave_if in bond_slaves:
check_output([IFUP, slave_if])
# if_mgr()._restart_network()
logger.log(logging.INFO, logger.LOG_TYPE_CONFIG,
"bond group %s (slaves:[%s]) "
"is deleted by user(%s)" %
(bond_name, ",".join(bond_slaves), user))
def offline_dev(self, scsi_id):
state_path = os.path.join("/sys/class/scsi_device/", self.scsi_id,
"device/state")
write_file_entry(state_path, "offline\n")
def rescan_dev(self):
'''rescan the device can update the device's state(including size) in host system'''
state_path = os.path.join("/sys/class/scsi_device/", self.scsi_id,
"device/rescan")
write_file_entry(state_path, "1\n")
def del_group(self, bond_name, user="******"):
# check exist
group_name_list = self.group_name_list()
if bond_name not in group_name_list:
raise StorLeverError("%s not found" % bond_name, 404)
if bond_name == "bond0":
# if want to delete bond0, there must be no other
# group, because bonding driver would auto create bond0 interface
# if there is another bond interface beyond bond0
if (len(group_name_list) > 1) or \
(group_name_list[0] != bond_name):
raise StorLeverError("Other bonding group must be "
"deleted before bond0 can be deleted", 400)
bond_group = BondGroup(bond_name)
bond_slaves = bond_group.slaves
check_output([IFDOWN, bond_name])
# get mutex
with self.lock:
# change bond.conf
self._del_bond_from_conf(bond_name)
# modify the slaves conf, especial for the first one,
# copy the bond ip config to it
is_first = True
for slave in bond_slaves:
slave_object = EthInterface(slave)
if is_first:
slave_object.conf["IPADDR"] = \
bond_group.conf.get("IPADDR", "")
slave_object.conf["NETMASK"] = \
bond_group.conf.get("NETMASK", "")
slave_object.conf["GATEWAY"] = \
bond_group.conf.get("GATEWAY", "")
is_first = False
else:
slave_object.conf["IPADDR"] = ""
slave_object.conf["NETMASK"] = ""
slave_object.conf["GATEWAY"] = ""
slave_object.conf.delete("MASTER")
slave_object.conf.delete("SLAVE")
slave_object.save_conf()
# delete ifcfg-bond*
ifcfg_name = os.path.join(IF_CONF_PATH, "ifcfg-%s" % bond_name)
if os.path.isfile(ifcfg_name):
os.remove(ifcfg_name)
# restart network
if os.path.exists(BONDING_MASTERS):
write_file_entry(BONDING_MASTERS, "-%s\n" % bond_name)
for slave_if in bond_slaves:
check_output([IFUP, slave_if])
# if_mgr()._restart_network()
logger.log(logging.INFO, logger.LOG_TYPE_CONFIG,
"bond group %s (slaves:[%s]) "
"is deleted by user(%s)" %
(bond_name, ",".join(bond_slaves), user))
