def setupMultipath():
"""
Set up the multipath daemon configuration to the known and
supported state. The original configuration, if any, is saved
"""
if os.path.exists(MPATH_CONF):
misc.rotateFiles(os.path.dirname(MPATH_CONF), os.path.basename(MPATH_CONF), MAX_CONF_COPIES, cp=True, persist=True)
f = tempfile.NamedTemporaryFile()
f.write(MPATH_CONF_TEMPLATE)
f.flush()
cmd = [constants.EXT_CP, f.name, MPATH_CONF]
rc = misc.execCmd(cmd)[0]
if rc != 0:
raise se.MultipathSetupError()
# f close removes file - must be after copy
f.close()
misc.persistFile(MPATH_CONF)
# Flush all unused multipath device maps
misc.execCmd([constants.EXT_MULTIPATH, "-F"])
cmd = [constants.EXT_SERVICE, "multipathd", "restart"]
rc = misc.execCmd(cmd)[0]
if rc != 0:
# No dice - try to reload instead of restart
cmd = [constants.EXT_SERVICE, "multipathd", "reload"]
rc = misc.execCmd(cmd)[0]
if rc != 0:
raise se.MultipathRestartError()
def setupMultipath():
"""
Set up the multipath daemon configuration to the known and
supported state. The original configuration, if any, is saved
"""
if os.path.exists(MPATH_CONF):
misc.rotateFiles(
os.path.dirname(MPATH_CONF),
os.path.basename(MPATH_CONF), MAX_CONF_COPIES,
cp=True, persist=True)
with tempfile.NamedTemporaryFile() as f:
f.write(MPATH_CONF_TEMPLATE % {'scsi_id_path': _scsi_id.cmd})
f.flush()
cmd = [constants.EXT_CP, f.name, MPATH_CONF]
rc = misc.execCmd(cmd, sudo=True)[0]
if rc != 0:
raise se.MultipathSetupError()
misc.persistFile(MPATH_CONF)
# Flush all unused multipath device maps
misc.execCmd([constants.EXT_MULTIPATH, "-F"], sudo=True)
cmd = [constants.EXT_VDSM_TOOL, "service-reload", "multipathd"]
rc = misc.execCmd(cmd, sudo=True)[0]
if rc != 0:
raise se.MultipathReloadError()
def setupMultipath():
"""
Set up the multipath daemon configuration to the known and
supported state. The original configuration, if any, is saved
"""
if os.path.exists(MPATH_CONF):
misc.rotateFiles(os.path.dirname(MPATH_CONF),
os.path.basename(MPATH_CONF),
MAX_CONF_COPIES,
cp=True,
persist=True)
with tempfile.NamedTemporaryFile() as f:
f.write(MPATH_CONF_TEMPLATE % {'scsi_id_path': _scsi_id.cmd})
f.flush()
cmd = [constants.EXT_CP, f.name, MPATH_CONF]
rc = misc.execCmd(cmd, sudo=True)[0]
if rc != 0:
raise se.MultipathSetupError()
misc.persistFile(MPATH_CONF)
# Flush all unused multipath device maps
misc.execCmd([constants.EXT_MULTIPATH, "-F"], sudo=True)
cmd = [constants.EXT_VDSM_TOOL, "service-reload", "multipathd"]
rc = misc.execCmd(cmd, sudo=True)[0]
if rc != 0:
raise se.MultipathReloadError()
def setupMultipath():
"""
Set up the multipath daemon configuration to the known and
supported state. The original configuration, if any, is saved
"""
if os.path.exists(MPATH_CONF):
misc.rotateFiles(os.path.dirname(MPATH_CONF),
os.path.basename(MPATH_CONF),
MAX_CONF_COPIES,
cp=True,
persist=True)
f = tempfile.NamedTemporaryFile()
f.write(MPATH_CONF_TEMPLATE)
f.flush()
cmd = [constants.EXT_CP, f.name, MPATH_CONF]
rc = misc.execCmd(cmd)[0]
if rc != 0:
raise se.MultipathSetupError()
# f close removes file - must be after copy
f.close()
misc.persistFile(MPATH_CONF)
# Flush all unused multipath device maps
misc.execCmd([constants.EXT_MULTIPATH, "-F"])
cmd = [constants.EXT_SERVICE, "multipathd", "restart"]
rc = misc.execCmd(cmd)[0]
if rc != 0:
# No dice - try to reload instead of restart
cmd = [constants.EXT_SERVICE, "multipathd", "reload"]
rc = misc.execCmd(cmd)[0]
if rc != 0:
raise se.MultipathRestartError()
def setMetadata(self, newMetadata):
# Backup old md (rotate old backup files)
misc.rotateFiles(self.mdBackupDir, self.sdUUID, self.mdBackupVersions)
oldMd = ["%s=%s\n" % (key, value) for key, value in self.getMetadata().copy().iteritems()]
open(os.path.join(self.mdBackupDir, self.sdUUID), "w").writelines(oldMd)
with self._metadata.transaction():
self._metadata.clear()
self._metadata.update(newMetadata)
def setMetadata(self, newMetadata):
# Backup old md (rotate old backup files)
misc.rotateFiles(self.mdBackupDir, self.sdUUID, self.mdBackupVersions)
oldMd = ["%s=%s\n" % (key, value) for key, value in self.getMetadata().copy().iteritems()]
open(os.path.join(self.mdBackupDir, self.sdUUID), "w").writelines(oldMd)
with self._metadata.transaction():
self._metadata.clear()
self._metadata.update(newMetadata)
