def _initpv(device, metadataSize=0):
if metadataSize > 0:
# Size for pvcreate should be with units k|m|g
metadatasize = str(metadataSize) + 'm'
cmd = ["pvcreate", "--metadatasize", metadatasize, device]
else:
cmd = ["pvcreate", "--pvmetadatacopies", "0", device]
#pvcreate on a dev that is already a PV but not in a VG returns rc = 0.
#The device is created with the new parameters.
rc, out, err = _lvminfo.cmd(cmd)
if rc != 0:
# This could have failed because a VG
# was removed on another host. Let us
# check with lvm
if isPvPartOfVg(device):
raise se.PhysDevInitializationError(device)
try:
devicemapper.removeMappingsHoldingDevice(os.path.basename(device))
except OSError, e:
if e.errno == errno.ENODEV:
raise se.PhysDevInitializationError("%s: %s" % (device, str(e)))
else:
raise
rc, out, err = _lvminfo.cmd(cmd)
if rc != 0:
raise se.PhysDevInitializationError(device)
def _initpvs(devices, metadataSize):
devices = _normalizeargs(devices)
# Size for pvcreate should be with units k|m|g
metadatasize = str(metadataSize) + 'm'
cmd = ["pvcreate", "--metadatasize", metadatasize, "--metadatacopies", "2",
"--metadataignore", "y"]
cmd.extend(devices)
#pvcreate on a dev that is already a PV but not in a VG returns rc = 0.
#The device is created with the new parameters.
rc, out, err = _lvminfo.cmd(cmd)
if rc != 0:
# This could have failed because a VG was removed on another host.
#Let us check with lvm
found, notFound = getVGsOfReachablePVs(devices)
#If returned not found devices or any device is in a VG
if notFound or any(found.itervalues()):
raise se.PhysDevInitializationError("found: %s notFound: %s" %
(found, notFound))
#All devices are free and reachable, calling the ghostbusters!
for device in devices:
try:
devicemapper.removeMappingsHoldingDevice(os.path.basename(device))
except OSError, e:
if e.errno == errno.ENODEV:
raise se.PhysDevInitializationError("%s: %s" % (device, str(e)))
else:
raise
#Retry pvcreate
rc, out, err = _lvminfo.cmd(cmd)
if rc != 0:
raise se.PhysDevInitializationError(device)
def _initpv(device, metadataSize=0):
if metadataSize > 0:
# Size for pvcreate should be with units k|m|g
metadatasize = str(metadataSize) + 'm'
cmd = ["pvcreate", "--metadatasize", metadatasize, device]
else:
cmd = ["pvcreate", "--pvmetadatacopies", "0", device]
#pvcreate on a dev that is already a PV but not in a VG returns rc = 0.
#The device is created with the new parameters.
rc, out, err = _lvminfo.cmd(cmd)
if rc != 0:
# This could have failed because a VG
# was removed on another host. Let us
# check with lvm
if isPvPartOfVg(device):
raise se.PhysDevInitializationError(device)
try:
devicemapper.removeMappingsHoldingDevice(os.path.basename(device))
except OSError, e:
if e.errno == errno.ENODEV:
raise se.PhysDevInitializationError("%s: %s" %
(device, str(e)))
else:
raise
rc, out, err = _lvminfo.cmd(cmd)
if rc != 0:
raise se.PhysDevInitializationError(device)
def _initpvs_removeHolders():
"""Remove holders for all devices."""
for device in devices:
try:
devicemapper.removeMappingsHoldingDevice(
os.path.basename(device))
except OSError as e:
if e.errno == errno.ENODEV:
raise se.PhysDevInitializationError("%s: %s" %
(device, str(e)))
else:
raise
def _initpvs_removeHolders():
"""Remove holders for all devices."""
for device in devices:
try:
devicemapper.removeMappingsHoldingDevice(
os.path.basename(device))
except OSError as e:
if e.errno == errno.ENODEV:
raise se.PhysDevInitializationError("%s: %s" %
(device, str(e)))
else:
raise
