ganeti.storage.gluster.GlusterStorage

class documentation

class GlusterStorage(base.BlockDev):

File device using the Gluster backend.

This class represents a file storage backend device stored on Gluster. Ganeti mounts and unmounts the Gluster devices automatically.

The unique_id for the file device is a (file_driver, file_path) tuple.

Class Method	`Create`	Create a new file.
Method	`__init__`	Initalizes a file device backend.
Method	`Assemble`	Assemble the device.
Method	`Attach`	Attach to an existing file.
Method	`Close`	Notifies that the device will no longer be used for I/O.
Method	`GetActualSize`	Return the actual disk size.
Method	`GetUserspaceAccessUri`	Generate KVM userspace URIs to be used as `-drive file` settings.
Method	`Grow`	Grow the file
Method	`Open`	Make the device ready for I/O.
Method	`Remove`	Remove the file backing the block device.
Method	`Rename`	Renames the file.
Method	`Shutdown`	Shutdown the device.
Instance Variable	`attached`	Undocumented
Instance Variable	`dev_path`	Undocumented
Instance Variable	`driver`	Undocumented
Instance Variable	`file`	Undocumented
Instance Variable	`full_path`	Undocumented
Instance Variable	`path`	Undocumented
Instance Variable	`volume`	Undocumented

Inherited from BlockDev:

Method	`__eq__`	Undocumented
Method	`__repr__`	Undocumented
Method	`CombinedSyncStatus`	Calculate the mirror status recursively for our children.
Method	`Export`	Builds the shell command for exporting data from device.
Method	`GetActualDimensions`	Return the actual disk size and number of spindles used.
Method	`GetActualSpindles`	Return the actual number of spindles used.
Method	`GetSyncStatus`	Returns the sync status of the device.
Method	`Import`	Builds the shell command for importing data to device.
Method	`PauseResumeSync`	Pause/Resume the sync of the mirror.
Method	`SetInfo`	Update metadata with info text.
Method	`SetSyncParams`	Adjust the synchronization parameters of the mirror.
Method	`Snapshot`	Creates a snapshot of the block device.
Instance Variable	`dyn_params`	Undocumented
Instance Variable	`major`	Undocumented
Instance Variable	`minor`	Undocumented
Instance Variable	`params`	Undocumented
Instance Variable	`size`	Undocumented
Instance Variable	`unique_id`	Undocumented
Instance Variable	`_children`	Undocumented

@classmethod
def Create(cls, unique_id, children, size, spindles, params, excl_stor, dyn_params, **kwargs): ¶

overrides ganeti.storage.base.BlockDev.Create

Create a new file.

Parameters
unique_id	Undocumented
children	Undocumented
size	the size of file in MiB
spindles	Undocumented
params	Undocumented
excl_stor	Undocumented
dyn_params	Undocumented
**kwargs	Undocumented
Returns
`bdev.FileStorage`	an instance of FileStorage

def __init__(self, unique_id, children, size, params, dyn_params, **kwargs): ¶

overrides ganeti.storage.base.BlockDev.__init__

Initalizes a file device backend.

def Assemble(self): ¶

overrides ganeti.storage.base.BlockDev.Assemble

Assemble the device.

Checks whether the file device exists, raises BlockDeviceError otherwise.

def Attach(self, **kwargs): ¶

overrides ganeti.storage.base.BlockDev.Attach

Attach to an existing file.

Check if this file already exists.

Returns
boolean	True if file exists

def Close(self): ¶

overrides ganeti.storage.base.BlockDev.Close

Notifies that the device will no longer be used for I/O.

This is a no-op for the file type.

def GetActualSize(self): ¶

overrides ganeti.storage.base.BlockDev.GetActualSize

Return the actual disk size.

Note
the device needs to be active when this is called

def GetUserspaceAccessUri(self, hypervisor): ¶

overrides ganeti.storage.base.BlockDev.GetUserspaceAccessUri

Generate KVM userspace URIs to be used as `-drive file` settings.

See Also
`BlockDev.GetUserspaceAccessUri`
https://github.com/qemu/qemu/commit/8d6d89cb63c57569864ecdeb84d3a1c2eb

def Grow(self, amount, dryrun, backingstore, excl_stor): ¶

overrides ganeti.storage.base.BlockDev.Grow

Grow the file

Parameters
amount	the amount (in mebibytes) to grow with
dryrun	Undocumented
backingstore	Undocumented
excl_stor	Undocumented

def Open(self, force=False, exclusive=True): ¶

overrides ganeti.storage.base.BlockDev.Open

Make the device ready for I/O.

This is a no-op for the file type.

def Remove(self): ¶

overrides ganeti.storage.base.BlockDev.Remove

Remove the file backing the block device.

Returns
boolean	True if the removal was successful

def Rename(self, new_id): ¶

overrides ganeti.storage.base.BlockDev.Rename

Renames the file.

def Shutdown(self): ¶

overrides ganeti.storage.base.BlockDev.Shutdown

Shutdown the device.

attached = ¶

overrides ganeti.storage.base.BlockDev.attached

Undocumented

dev_path = ¶

overrides ganeti.storage.base.BlockDev.dev_path

Undocumented

driver = ¶

Undocumented

file = ¶

Undocumented

full_path = ¶

Undocumented

path = ¶

Undocumented

volume = ¶

Undocumented