Package rtslib :: Module tcm :: Class IBlockStorageObject

Class IBlockStorageObject

  object --+        
           |        
node.CFSNode --+    
               |    
   StorageObject --+
                   |
                  IBlockStorageObject

An interface to configFS storage objects for iblock backstore.

Instance Methods

[hide private]

__init__(self, backstore, name, dev=None, wwn=None)
A BlockIOStorageObject can be instantiated in two ways:

_configure(self, dev, wwn)

_get_major(self)

_get_minor(self)

Inherited from StorageObject: delete, is_configured, restore_pr_aptpl

Inherited from StorageObject (private): _control, _enable, _gen_attached_luns, _get_backstore, _get_name, _get_status, _get_udev_path, _get_wwn, _list_attached_luns, _parse_info, _set_udev_path, _set_wwn, _write_fd

Inherited from node.CFSNode: __nonzero__, __str__, get_attribute, get_auth_attr, get_parameter, list_attributes, list_auth_attrs, list_parameters, set_attribute, set_auth_attr, set_parameter

Inherited from node.CFSNode (private): _check_self, _create_in_cfs_ine, _exists, _get_path, _is_fresh, _list_files

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __subclasshook__

Class Variables

[hide private]

Inherited from StorageObject: pr_aptpl_metadata_dir

Inherited from node.CFSNode: alua_metadata_dir, configfs_dir

Properties

[hide private]

major
Get the block device major number

minor
Get the block device minor number

Inherited from StorageObject: attached_luns, backstore, name, status, udev_path, wwn

Inherited from node.CFSNode: exists, is_fresh, path

Inherited from object: __class__

Method Details

[hide private]

init(self, backstore, name, dev=None, wwn=None)
(Constructor)

A BlockIOStorageObject can be instantiated in two ways:

Creation mode: If dev is specified, the underlying configFS object will be created with that parameter. No BlockIOStorageObject with the same name can pre-exist in the parent BlockIOBackstore in that mode.
Lookup mode: If dev is not set, then the BlockIOStorageObject will be bound to the existing configFS object in the parent BlockIOBackstore having the specified name. The underlying configFS object must already exist in that mode, or instantiation will fail.

Parameters:

backstore (BlockIOBackstore) - The parent backstore of the BlockIOStorageObject.
name (string) - The name of the BlockIOStorageObject.
dev (string) - The path to the backend block device to be used.
- Example: dev="/dev/sda".
- The only device type that is accepted TYPE_DISK. For other device types, use pscsi.
wwn (None or string) - Either None (use random WWN) or the WWN to use as T10 Unit Serial.

Returns:

A BlockIOStorageObject object.

Overrides: object.__init__

Property Details

[hide private]

major

Get the block device major number

Get Method:: _get_major(self)

minor

Get the block device minor number

Get Method:: _get_minor(self)

Class IBlockStorageObject

__init__(self, backstore, name, dev=None, wwn=None) (Constructor)

major

minor

init(self, backstore, name, dev=None, wwn=None)
(Constructor)