ganeti.storage.bdev.PersistentBlockDevice

class documentation

class PersistentBlockDevice(base.BlockDev):

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A block device with persistent node

May be either directly attached, or exposed through DM (e.g. dm-multipath). udev helpers are probably required to give persistent, human-friendly names.

For the time being, pathnames are required to lie under /dev.

Class Method Create Create a new device
Method __init__ Attaches to a static block device.
Method Assemble Assemble the device.
Method Attach Attach to an existing block device.
Method Close Notifies that the device will no longer be used for I/O.
Method Grow Grow the logical volume.
Method Import Builds the shell command for importing data to device.
Method Open Make the device ready for I/O.
Method Remove Remove a device
Method Rename Rename this device.
Method Shutdown Shutdown the device.
Instance Variable attached Undocumented
Instance Variable dev_path Undocumented
Instance Variable major Undocumented
Instance Variable minor 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 GetActualSize Return the actual disk size.
Method GetActualSpindles Return the actual number of spindles used.
Method GetSyncStatus Returns the sync status of the device.
Method GetUserspaceAccessUri Return URIs hypervisors can use to access disks in userspace mode.
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 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 device

This is a noop, we only return a PersistentBlockDevice instance

def __init__(self, unique_id, children, size, params, dyn_params, **kwargs):
overrides ganeti.storage.base.BlockDev.__init__

Attaches to a static block device.

The unique_id is a path under /dev.

def Assemble(self):
overrides ganeti.storage.base.BlockDev.Assemble

Assemble the device.

def Attach(self):
overrides ganeti.storage.base.BlockDev.Attach

Attach to an existing block device.

def Close(self):
overrides ganeti.storage.base.BlockDev.Close

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

def Grow(self, amount, dryrun, backingstore, excl_stor):
overrides ganeti.storage.base.BlockDev.Grow

Grow the logical volume.

def Import(self):
overrides ganeti.storage.base.BlockDev.Import

Builds the shell command for importing data to device.

See Also
BlockDev.Import for details
def Open(self, force=False, exclusive=True):
overrides ganeti.storage.base.BlockDev.Open

Make the device ready for I/O.

def Remove(self):
overrides ganeti.storage.base.BlockDev.Remove

Remove a device

This is a noop

def Rename(self, new_id):
overrides ganeti.storage.base.BlockDev.Rename

Rename this device.

def Shutdown(self):
overrides ganeti.storage.base.BlockDev.Shutdown

Shutdown the device.

attached: bool =
overrides ganeti.storage.base.BlockDev.attached

Undocumented

dev_path =
overrides ganeti.storage.base.BlockDev.dev_path

Undocumented

major =
overrides ganeti.storage.base.BlockDev.major

Undocumented

minor =
overrides ganeti.storage.base.BlockDev.minor

Undocumented