def getVGBlockSizes(vgUUID):
pvs = listPVNames(vgUUID)
if not pvs:
raise se.VolumeGroupDoesNotExist("vg_uuid: %s" % vgUUID)
# Returning the block size of the first pv is correct since we don't allow
# devices with different block size to be on the same VG.
return _getpvblksize(pvs[0])
def getVGbyUUID(vgUUID):
# cycle through all the VGs until the one with the given UUID found
for vg in getAllVGs():
try:
if vg.uuid == vgUUID:
return vg
except AttributeError as e:
# An unreloadable VG found but may be we are not looking for it.
log.debug("%s" % e.message, exc_info=True)
continue
# If not cry loudly
raise se.VolumeGroupDoesNotExist("vg_uuid: %s" % vgUUID)
def getVG(vgName):
vg = _lvminfo.getVg(vgName) # returns single VG namedtuple
if not vg:
raise se.VolumeGroupDoesNotExist(vgName)
else:
return vg
def checkVGBlockSizes(vgUUID, vgBlkSize=None):
pvs = listPVNames(vgUUID)
if not pvs:
raise se.VolumeGroupDoesNotExist("vg_uuid: %s" % vgUUID)
_checkpvsblksize(pvs, vgBlkSize)
# TODO: lvm VG UUID should not be exposed.
# Remove this function when hsm.public_createVG is removed.
def getVGbyUUID(vgUUID):
# cycle through all the VGs until the one with the given UUID found
for vg in getAllVGs():
try:
if vg.uuid == vgUUID:
return vg
except AttributeError, e:
# An unreloadable VG found but may be we are not looking for it.
log.debug("%s" % e.message, exc_info=True)
continue
# If not cry loudly
raise se.VolumeGroupDoesNotExist("vg_uuid: %s" % vgUUID)
def getLV(vgName, lvName=None):
lv = _lvminfo.getLv(vgName, lvName)
#getLV() should not return None
if not lv:
raise se.LogicalVolumeDoesNotExistError("%s/%s" % (vgName, lvName))
else:
return lv
#
# Public Volume Group interface
#