def validateCreateVolumeParams(cls, volFormat, preallocate, srcVolUUID):
"""
Validate create volume parameters
"""
if volFormat not in VOL_FORMAT:
raise se.IncorrectFormat(type2name(volFormat))
if preallocate not in VOL_TYPE:
raise se.IncorrectFormat(type2name(preallocate))
def validateCreateVolumeParams(cls, volFormat, preallocate, srcVolUUID):
"""
Validate create volume parameters
"""
if volFormat not in VOL_FORMAT:
raise se.IncorrectFormat(type2name(volFormat))
if preallocate not in VOL_TYPE:
raise se.IncorrectType(type2name(preallocate))
# Volumes with a parent must be cow
if srcVolUUID != BLANK_UUID and volFormat != COW_FORMAT:
raise se.IncorrectFormat(type2name(volFormat))
def validateCreateVolumeParams(self, volFormat, srcVolUUID,
preallocate=None):
"""
Validate create volume parameters
"""
if volFormat not in volume.VOL_FORMAT:
raise se.IncorrectFormat(volFormat)
# Volumes with a parent must be cow
if srcVolUUID != volume.BLANK_UUID and volFormat != volume.COW_FORMAT:
raise se.IncorrectFormat(volume.type2name(volFormat))
if preallocate is not None and preallocate not in volume.VOL_TYPE:
raise se.IncorrectType(preallocate)
def validateCreateVolumeParams(self, volFormat, srcVolUUID,
preallocate=None):
super(BlockStorageDomain, self).validateCreateVolumeParams(
volFormat, srcVolUUID, preallocate=preallocate)
# Sparse-Raw not supported for block volumes
if preallocate == volume.SPARSE_VOL and volFormat == volume.RAW_FORMAT:
raise se.IncorrectFormat(volume.type2name(volFormat))
def validateCreateVolumeParams(cls, volFormat, preallocate, srcVolUUID):
"""
Validate create volume parameters.
'srcVolUUID' - backing volume UUID
'volFormat' - volume format RAW/QCOW2
'preallocate' - sparse/preallocate
"""
volume.Volume.validateCreateVolumeParams(volFormat, preallocate,
srcVolUUID)
# Sparse-Raw not supported for block volumes
if preallocate == volume.SPARSE_VOL and volFormat == volume.RAW_FORMAT:
raise se.IncorrectFormat(srcVolUUID)
# Snapshot should be COW volume
if srcVolUUID != volume.BLANK_UUID and volFormat != volume.COW_FORMAT:
raise se.IncorrectFormat(srcVolUUID)
def extendSize(self, newSize):
"""
Extend the size (virtual disk size seen by the guest) of the volume.
"""
if self.isShared():
raise se.VolumeNonWritable(self.volUUID)
volFormat = self.getFormat()
if volFormat == COW_FORMAT:
self.log.debug(
"skipping cow size extension for volume %s to "
"size %s", self.volUUID, newSize)
return
elif volFormat != RAW_FORMAT:
raise se.IncorrectFormat(self.volUUID)
# Note: This function previously prohibited extending non-leaf volumes.
# If a disk is enlarged a volume may become larger than its parent. In
# order to support live merge of a larger volume into its raw parent we
# must permit extension of this raw volume prior to starting the merge.
isBase = self.getParent() == BLANK_UUID
if not (isBase or self.isLeaf()):
raise se.VolumeNonWritable(self.volUUID)
curRawSize = self.getVolumeSize()
if (newSize < curRawSize):
self.log.error(
"current size of volume %s is larger than the "
"size requested in the extension (%s > %s)", self.volUUID,
curRawSize, newSize)
raise se.VolumeResizeValueError(newSize)
if (newSize == curRawSize):
self.log.debug(
"the requested size %s is equal to the current "
"size %s, skipping extension", newSize, curRawSize)
else:
self.log.info(
"executing a raw size extension for volume %s "
"from size %s to size %s", self.volUUID, curRawSize, newSize)
vars.task.pushRecovery(
task.Recovery("Extend size for volume: " + self.volUUID,
"volume", "Volume", "extendSizeFinalize",
[self.sdUUID, self.imgUUID, self.volUUID]))
self._extendSizeRaw(newSize)
self.syncMetadata() # update the metadata
def extendSize(self, newSize):
"""
Extend the size (virtual disk size seen by the guest) of the volume.
"""
if not self.isLeaf() or self.isShared():
raise se.VolumeNonWritable(self.volUUID)
volFormat = self.getFormat()
if volFormat == COW_FORMAT:
self.log.debug(
"skipping cow size extension for volume %s to "
"size %s", self.volUUID, newSize)
return
elif volFormat != RAW_FORMAT:
raise se.IncorrectFormat(self.volUUID)
curRawSize = self.getVolumeSize()
if (newSize < curRawSize):
self.log.error(
"current size of volume %s is larger than the "
"size requested in the extension (%s > %s)", self.volUUID,
curRawSize, newSize)
raise se.VolumeResizeValueError(newSize)
if (newSize == curRawSize):
self.log.debug(
"the requested size %s is equal to the current "
"size %s, skipping extension", newSize, curRawSize)
else:
self.log.info(
"executing a raw size extension for volume %s "
"from size %s to size %s", self.volUUID, curRawSize, newSize)
vars.task.pushRecovery(
task.Recovery("Extend size for volume: " + self.volUUID,
"volume", "Volume", "extendSizeFinalize",
[self.sdUUID, self.imgUUID, self.volUUID]))
self._extendSizeRaw(newSize)
self.syncMetadata() # update the metadata
