def create(self, sr_uuid, vdi_uuid, size):
if util.ioretry(lambda: util.pathexists(self.path)):
raise xs_errors.XenError('VDIExists')
overhead = 0
if self.vdi_type == vhdutil.VDI_TYPE_VHD:
overhead = vhdutil.calcOverheadFull(long(size))
# Test the amount of actual disk space
if ENFORCE_VIRT_ALLOC:
self.sr._loadvdis()
reserved = self.sr.virtual_allocation
sr_size = self.sr._getsize()
if (sr_size - reserved) < (long(size) + overhead):
raise xs_errors.XenError('SRNoSpace')
if self.vdi_type == vhdutil.VDI_TYPE_VHD:
try:
mb = 1024L * 1024L
size_mb = util.roundup(VHD_SIZE_INC, long(size)) / mb
if size_mb < 1 or (size_mb + (overhead / mb)) >= MAX_DISK_MB:
raise xs_errors.XenError('VDISize', opterr='VDI size ' + \
'must be between 1 MB and %d MB' % \
((MAX_DISK_MB - MAX_DISK_METADATA) - 1))
util.ioretry(lambda: self._create(str(size_mb), self.path))
self.size = util.ioretry(lambda: self._query_v(self.path))
except util.CommandException, inst:
raise xs_errors.XenError('VDICreate',
opterr='error %d' % inst.code)
def create(self, sr_uuid, vdi_uuid, size):
if util.ioretry(lambda: util.pathexists(self.path)):
raise xs_errors.XenError('VDIExists')
overhead = 0
if self.vdi_type == vhdutil.VDI_TYPE_VHD:
overhead = vhdutil.calcOverheadFull(long(size))
# Test the amount of actual disk space
if ENFORCE_VIRT_ALLOC:
self.sr._loadvdis()
reserved = self.sr.virtual_allocation
sr_size = self.sr._getsize()
if (sr_size - reserved) < (long(size) + overhead):
raise xs_errors.XenError('SRNoSpace')
if self.vdi_type == vhdutil.VDI_TYPE_VHD:
try:
mb = 1024L * 1024L
size_mb = util.roundup(VHD_SIZE_INC, long(size)) / mb
if size_mb < 1 or (size_mb + (overhead / mb)) >= MAX_DISK_MB:
raise xs_errors.XenError('VDISize', opterr='VDI size ' + \
'must be between 1 MB and %d MB' % \
((MAX_DISK_MB - MAX_DISK_METADATA) - 1))
util.ioretry(lambda: self._create(str(size_mb), self.path))
self.size = util.ioretry(lambda: self._query_v(self.path))
except util.CommandException, inst:
raise xs_errors.XenError('VDICreate',
opterr='error %d' % inst.code)
def create(self, sr_uuid, vdi_uuid, size):
if util.ioretry(lambda: util.pathexists(self.path)):
raise xs_errors.XenError('VDIExists')
overhead = 0
if self.vdi_type == vhdutil.VDI_TYPE_VHD:
overhead = vhdutil.calcOverheadFull(long(size))
# Test the amount of actual disk space
if ENFORCE_VIRT_ALLOC:
self.sr._loadvdis()
reserved = self.sr.virtual_allocation
sr_size = self.sr._getsize()
if (sr_size - reserved) < (long(size) + overhead):
raise xs_errors.XenError('SRNoSpace')
if self.vdi_type == vhdutil.VDI_TYPE_VHD:
try:
size = vhdutil.validate_and_round_vhd_size(long(size))
mb = 1024L * 1024L
size_mb = long(size) / mb
util.ioretry(lambda: self._create(str(size_mb), self.path))
self.size = util.ioretry(lambda: self._query_v(self.path))
except util.CommandException, inst:
raise xs_errors.XenError('VDICreate',
opterr='error %d' % inst.code)
def create(self, sr_uuid, vdi_uuid, size):
if util.ioretry(lambda: util.pathexists(self.path)):
raise xs_errors.XenError('VDIExists')
overhead = 0
if self.vdi_type == vhdutil.VDI_TYPE_VHD:
overhead = vhdutil.calcOverheadFull(long(size))
# Test the amount of actual disk space
if ENFORCE_VIRT_ALLOC:
self.sr._loadvdis()
reserved = self.sr.virtual_allocation
sr_size = self.sr._getsize()
if (sr_size - reserved) < (long(size) + overhead):
raise xs_errors.XenError('SRNoSpace')
if self.vdi_type == vhdutil.VDI_TYPE_VHD:
try:
size = vhdutil.validate_and_round_vhd_size(long(size))
mb = 1024L * 1024L
size_mb = long(size) / mb
util.ioretry(lambda: self._create(str(size_mb), self.path))
self.size = util.ioretry(lambda: self._query_v(self.path))
except util.CommandException, inst:
raise xs_errors.XenError('VDICreate',
opterr='error %d' % inst.code)
def resize_online(self, sr_uuid, vdi_uuid, size):
if not self.exists:
raise xs_errors.XenError('VDIUnavailable', \
opterr='VDI %s unavailable %s' % (vdi_uuid, self.path))
if self.vdi_type != vhdutil.VDI_TYPE_VHD:
raise xs_errors.XenError('Unimplemented')
if self.hidden:
raise xs_errors.XenError('VDIUnavailable', opterr='hidden VDI')
if size < self.size:
util.SMlog('vdi_resize: shrinking not supported: ' + \
'(current size: %d, new size: %d)' % (self.size, size))
raise xs_errors.XenError('VDISize', opterr='shrinking not allowed')
if size == self.size:
return VDI.VDI.get_params(self)
# We already checked it is a VDI_TYPE_VHD
size = util.roundup(VHD_SIZE_INC, long(size))
overhead = vhdutil.calcOverheadFull(long(size))
# Check we are within the limits
mb = 1024L * 1024L
if size < mb or (size / mb) >= MAX_VHD_SIZE:
raise xs_errors.XenError('VDISize',
opterr='VDI size ' +
'must be between 1 MB and %d MB' %
(MAX_VHD_SIZE))
# Test the amount of actual disk space
if ENFORCE_VIRT_ALLOC:
self.sr._loadvdis()
reserved = self.sr.virtual_allocation
sr_size = self.sr._getsize()
delta = long(size - self.size)
if (sr_size - reserved) < delta:
raise xs_errors.XenError('SRNoSpace')
jFile = JOURNAL_FILE_PREFIX + self.uuid
try:
vhdutil.setSizeVirt(self.path, size, jFile)
except:
# Revert the operation
vhdutil.revert(self.path, jFile)
raise xs_errors.XenError('VDISize',
opterr='resize operation failed')
old_size = self.size
self.size = vhdutil.getSizeVirt(self.path)
st = util.ioretry(lambda: os.stat(self.path))
self.utilisation = long(st.st_size)
self._db_update()
self.sr._update(self.sr.uuid, self.size - old_size)
return VDI.VDI.get_params(self)
def resize_online(self, sr_uuid, vdi_uuid, size):
if not self.exists:
raise xs_errors.XenError('VDIUnavailable', \
opterr='VDI %s unavailable %s' % (vdi_uuid, self.path))
if self.vdi_type != vhdutil.VDI_TYPE_VHD:
raise xs_errors.XenError('Unimplemented')
if self.hidden:
raise xs_errors.XenError('VDIUnavailable', opterr='hidden VDI')
if size < self.size:
util.SMlog('vdi_resize: shrinking not supported: ' + \
'(current size: %d, new size: %d)' % (self.size, size))
raise xs_errors.XenError('VDISize', opterr='shrinking not allowed')
if size == self.size:
return VDI.VDI.get_params(self)
# We already checked it is a VDI_TYPE_VHD
size = util.roundup(VHD_SIZE_INC, long(size))
overhead = vhdutil.calcOverheadFull(long(size))
# Check we are within the limits
mb = 1024L * 1024L
if size < mb or (size / mb) >= MAX_VHD_SIZE:
raise xs_errors.XenError('VDISize', opterr='VDI size ' +
'must be between 1 MB and %d MB' %(MAX_VHD_SIZE))
# Test the amount of actual disk space
if ENFORCE_VIRT_ALLOC:
self.sr._loadvdis()
reserved = self.sr.virtual_allocation
sr_size = self.sr._getsize()
delta = long(size - self.size)
if (sr_size - reserved) < delta:
raise xs_errors.XenError('SRNoSpace')
jFile = JOURNAL_FILE_PREFIX + self.uuid
try:
vhdutil.setSizeVirt(self.path, size, jFile)
except:
# Revert the operation
vhdutil.revert(self.path, jFile)
raise xs_errors.XenError('VDISize', opterr='resize operation failed')
old_size = self.size
self.size = vhdutil.getSizeVirt(self.path)
st = util.ioretry(lambda: os.stat(self.path))
self.utilisation = long(st.st_size)
self._db_update()
self.sr._update(self.sr.uuid, self.size - old_size)
return VDI.VDI.get_params(self)
def create(self, sr_uuid, vdi_uuid, size):
if util.ioretry(lambda: util.pathexists(self.path)):
raise xs_errors.XenError('VDIExists')
# Test the amount of actual disk space
if ENFORCE_VIRT_ALLOC:
self.sr._loadvdis()
reserved = self.sr.virtual_allocation
sr_size = self.sr._getsize()
if (sr_size - reserved) < \
(long(size) + vhdutil.calcOverheadFull(long(size))):
raise xs_errors.XenError('SRNoSpace')
try:
mb = 1024L * 1024L
size_mb = util.roundup(VHD_SIZE_INC, long(size)) / mb # round up
metasize = vhdutil.calcOverheadFull(long(size))
assert(size_mb > 0)
assert((size_mb + (metasize/(1024*1024))) < MAX_DISK_MB)
util.ioretry(lambda: self._create(str(size_mb), self.path))
self.size = util.ioretry(lambda: self._query_v(self.path))
except util.CommandException, inst:
raise xs_errors.XenError('VDICreate', opterr='error %d' % inst.code)
def resize_online(self, sr_uuid, vdi_uuid, size):
if not self.exists:
raise xs_errors.XenError("VDIUnavailable", opterr="VDI %s unavailable %s" % (vdi_uuid, self.path))
if self.vdi_type != vhdutil.VDI_TYPE_VHD:
raise xs_errors.XenError("Unimplemented")
if self.hidden:
raise xs_errors.XenError("VDIUnavailable", opterr="hidden VDI")
if size < self.size:
util.SMlog("vdi_resize: shrinking not supported: " + "(current size: %d, new size: %d)" % (self.size, size))
raise xs_errors.XenError("VDISize", opterr="shrinking not allowed")
if size == self.size:
return VDI.VDI.get_params(self)
# We already checked it is a VDI_TYPE_VHD
size = vhdutil.validate_and_round_vhd_size(long(size))
overhead = vhdutil.calcOverheadFull(long(size))
# Test the amount of actual disk space
if ENFORCE_VIRT_ALLOC:
self.sr._loadvdis()
reserved = self.sr.virtual_allocation
sr_size = self.sr._getsize()
delta = long(size - self.size)
if (sr_size - reserved) < delta:
raise xs_errors.XenError("SRNoSpace")
jFile = JOURNAL_FILE_PREFIX + self.uuid
try:
vhdutil.setSizeVirt(self.path, size, jFile)
except:
# Revert the operation
vhdutil.revert(self.path, jFile)
raise xs_errors.XenError("VDISize", opterr="resize operation failed")
old_size = self.size
self.size = vhdutil.getSizeVirt(self.path)
st = util.ioretry(lambda: os.stat(self.path))
self.utilisation = long(st.st_size)
self._db_update()
self.sr._update(self.sr.uuid, self.size - old_size)
return VDI.VDI.get_params(self)
def create(self, sr_uuid, vdi_uuid, size):
if util.ioretry(lambda: util.pathexists(self.path)):
raise xs_errors.XenError('VDIExists')
overhead = 0
if self.vdi_type == vhdutil.VDI_TYPE_VHD:
overhead = vhdutil.calcOverheadFull(long(size))
# Test the amount of actual disk space
if ENFORCE_VIRT_ALLOC:
self.sr._loadvdis()
reserved = self.sr.virtual_allocation
sr_size = self.sr._getsize()
if (sr_size - reserved) < (long(size) + overhead):
raise xs_errors.XenError('SRNoSpace')
if self.vdi_type == vhdutil.VDI_TYPE_VHD:
try:
size = vhdutil.validate_and_round_vhd_size(long(size))
mb = 1024 * 1024
size_mb = long(size) / mb
util.ioretry(lambda: self._create(str(size_mb), self.path))
self.size = util.ioretry(lambda: self._query_v(self.path))
except util.CommandException as inst:
raise xs_errors.XenError('VDICreate',
opterr='error %d' % inst.code)
else:
f = open(self.path, 'w')
f.truncate(long(size))
f.close()
self.size = size
self.sr.added_vdi(self)
st = util.ioretry(lambda: os.stat(self.path))
self.utilisation = long(st.st_size)
if self.vdi_type == vhdutil.VDI_TYPE_RAW:
self.sm_config = {"type": self.PARAM_RAW}
self._db_introduce()
self.sr._update(self.sr.uuid, self.size)
return super(FileVDI, self).get_params()
def getOverheadVHDFull(virtSize):
return vhdutil.calcOverheadFull(virtSize)
