def __init__(self, sdUUID, domaindir, metadata):
self.sdUUID = sdUUID
self.domaindir = domaindir
self.replaceMetadata(metadata)
self._external_leases_lock = rwlock.RWLock()
self._alignment = metadata.get(DMDK_ALIGNMENT, sc.ALIGNMENT_1M)
self._block_size = metadata.get(DMDK_BLOCK_SIZE, sc.BLOCK_SIZE_512)
# Validate alignment and block size.
version = self.getVersion()
if version < 5:
if self.alignment != sc.ALIGNMENT_1M:
raise se.MetaDataValidationError(
"Storage domain version {} does not support alignment {}".
format(version, self.alignment))
if self.block_size != sc.BLOCK_SIZE_512:
raise se.MetaDataValidationError(
"Storage domain version {} does not support block size {}".
format(version, self.block_size))
self._domainLock = self._makeDomainLock()
def getSize(self):
size = int(self.getMetaParam(sc.SIZE))
if size < 1: # Size stored in the metadata is not valid
raise se.MetaDataValidationError()
return size