def configure_from_node(self, node, defaults, parent):
DynamicNamedXMLConfigurable.configure_from_node(self, node, defaults, parent)
# Add drhost bits, if available.
# This is done here, rather than as a separate object,
# to avoid a separate class that may not really be necessary
self.children['drhostname'] = [x.attrib['name'] for x in node.findall('drhost')]
def configure_from_node(self, node, defaults, parent):
DynamicNamedXMLConfigurable.configure_from_node(
self, node, defaults, parent)
self.volume = parent
self.qtreenode = node
self.children['exportalias'] = [
x.text for x in node.findall('exportalias')
]
def configure_from_node(self, node, defaults, parent):
DynamicNamedXMLConfigurable.configure_from_node(
self, node, defaults, parent)
# Add drhost bits, if available.
# This is done here, rather than as a separate object,
# to avoid a separate class that may not really be necessary
self.children['drhostname'] = [
x.attrib['name'] for x in node.findall('drhost')
]
def configure_from_node(self, node, defaults, parent):
"""
Volume configuration is quite complex, due to the way we attempt
to cater for all kinds of situations automatically, using configurable
defaults and various overrides.
"""
self.parent = parent
DynamicNamedXMLConfigurable.configure_from_node(self, node, defaults, parent)
# Check if iscsi is an enabled protocol. If so, use 'iscsi_snapspace' instead
# of snapreserve
#if 'iscsi' in [ x.name for x in self.get_protocols() ]:
if 'iscsi' == self.protocol:
self.snapreserve = 0
if getattr(self, 'iscsi_snapspace', None):
self.iscsi_snapspace = defaults.getint('volume', 'default_iscsi_snapspace')
else:
self.iscsi_snapspace = int(self.iscsi_snapspace)
pass
pass
# iSCSI LUN sizing is... interesting
# Best practice is to have no snapreserve for volumes
# used for iscsi, but we need to have some storage
# available for snapshots. Because LUNs are just files full
# of blocks, we have to allocate enough storage for all
# of the blocks to change, so we need 2 * LUNsize GiB to
# store the snapshots.
# If you're not using snapshots, you will need a little extra
# space in the volume so the LUN can fit within it. The LUN
# can't take up 100% of the volume (i.e.: A LUN of 100GiB
# will require a volume of 101GiB in size)
log.debug("volume proto is iscsi")
# If snapshots are configured, double the usable storage to allow for 50% 'snapreserve'
if len(self.get_snaprefs()) > 0 or \
len(self.get_snapvaultrefs()) > 0 or \
len(self.get_snapmirrorrefs()) > 0 or \
len(self.get_snapvaultmirrorrefs()) > 0:
log.debug("snapshots present. doubling usable space of %s GiB for iscsi volume", self.usable)
#snapdiv = (100 - float(iscsi_snapspace))/100
snapspace = self.usable * ( float(iscsi_snapspace)/100 )
log.debug("Adding iscsi_snapspace (%s%%) of %s GiB", iscsi_snapspace, snapspace)
self.usable = (self.usable * 2.0) + snapspace
log.debug("usable is now: %s GiB, iscsi_usable is: %s GiB", self.usable, self.iscsi_usable)
else:
# If no snapshots are configured, make the raw slightly more than usable
log.debug("No snapshots, adding 1 GiB usable to volume size.")
self.raw = self.usable + 1
pass
pass
# self.snapref = snapref
# self.snapvaultref = snapvaultref
# self.snapmirrorref = snapmirrorref
# self.snapvaultmirrorref = snapvaultmirrorref
# Lists of the actual snapX objects, added when they're created
self.snaps = []
self.snapvaults = []
self.snapmirrors = []
#self.qtrees = {}
# Set volume options as a dictionary
options = {}
if len(self.children['option']) == 0:
# FIXME: deal with user errors in the config file better
for opt in defaults.get('volume', 'default_options').split(','):
name, value = opt.split('=')
options[name] = value
pass
else:
for opt in self.children['option']:
name, value = opt.split('=')
options[name] = value
pass
pass
self.children['option'] = options
self.volnode = node
# If volume export is not allowed, check that qtrees exist in the
# volume. If not, create a single default data qtree.
self.check_volume_export_allowed(defaults)
self.autosize = None
self.autodelete = None
log.debug("volume usable is: %f", self.usable)
def configure_from_node(self, node, defaults, parent):
DynamicNamedXMLConfigurable.configure_from_node(self, node, defaults, parent)
self.volume = parent
self.qtreenode = node
self.children['exportalias'] = [ x.text for x in node.findall('exportalias') ]
def configure_from_node(self, node, defaults, parent):
"""
Volume configuration is quite complex, due to the way we attempt
to cater for all kinds of situations automatically, using configurable
defaults and various overrides.
"""
self.parent = parent
DynamicNamedXMLConfigurable.configure_from_node(
self, node, defaults, parent)
# Check if iscsi is an enabled protocol. If so, use 'iscsi_snapspace' instead
# of snapreserve
#if 'iscsi' in [ x.name for x in self.get_protocols() ]:
if 'iscsi' == self.protocol:
self.snapreserve = 0
if getattr(self, 'iscsi_snapspace', None):
self.iscsi_snapspace = defaults.getint(
'volume', 'default_iscsi_snapspace')
else:
self.iscsi_snapspace = int(self.iscsi_snapspace)
pass
pass
# iSCSI LUN sizing is... interesting
# Best practice is to have no snapreserve for volumes
# used for iscsi, but we need to have some storage
# available for snapshots. Because LUNs are just files full
# of blocks, we have to allocate enough storage for all
# of the blocks to change, so we need 2 * LUNsize GiB to
# store the snapshots.
# If you're not using snapshots, you will need a little extra
# space in the volume so the LUN can fit within it. The LUN
# can't take up 100% of the volume (i.e.: A LUN of 100GiB
# will require a volume of 101GiB in size)
log.debug("volume proto is iscsi")
# If snapshots are configured, double the usable storage to allow for 50% 'snapreserve'
if len(self.get_snaprefs()) > 0 or \
len(self.get_snapvaultrefs()) > 0 or \
len(self.get_snapmirrorrefs()) > 0 or \
len(self.get_snapvaultmirrorrefs()) > 0:
log.debug(
"snapshots present. doubling usable space of %s GiB for iscsi volume",
self.usable)
#snapdiv = (100 - float(iscsi_snapspace))/100
snapspace = self.usable * (float(iscsi_snapspace) / 100)
log.debug("Adding iscsi_snapspace (%s%%) of %s GiB",
iscsi_snapspace, snapspace)
self.usable = (self.usable * 2.0) + snapspace
log.debug("usable is now: %s GiB, iscsi_usable is: %s GiB",
self.usable, self.iscsi_usable)
else:
# If no snapshots are configured, make the raw slightly more than usable
log.debug("No snapshots, adding 1 GiB usable to volume size.")
self.raw = self.usable + 1
pass
pass
# self.snapref = snapref
# self.snapvaultref = snapvaultref
# self.snapmirrorref = snapmirrorref
# self.snapvaultmirrorref = snapvaultmirrorref
# Lists of the actual snapX objects, added when they're created
self.snaps = []
self.snapvaults = []
self.snapmirrors = []
#self.qtrees = {}
# Set volume options as a dictionary
options = {}
if len(self.children['option']) == 0:
# FIXME: deal with user errors in the config file better
for opt in defaults.get('volume', 'default_options').split(','):
name, value = opt.split('=')
options[name] = value
pass
else:
for opt in self.children['option']:
name, value = opt.split('=')
options[name] = value
pass
pass
self.children['option'] = options
self.volnode = node
# If volume export is not allowed, check that qtrees exist in the
# volume. If not, create a single default data qtree.
self.check_volume_export_allowed(defaults)
self.autosize = None
self.autodelete = None
log.debug("volume usable is: %f", self.usable)
