45     def checkBlockDriverState(self, node, must_exist = True):  argument
47         nodes = [x for x in result['return'] if x['node-name'] == node]
52     def addBlockDriverState(self, node):  argument
53         file_node = '%s_file' % node
54         self.checkBlockDriverState(node, False)
57                 'node-name': node,
59                          'node-name': file_node,
62         self.checkBlockDriverState(node)
66     def addBlockDriverStateOverlay(self, node):  argument
67         self.checkBlockDriverState(node, False)
71                 'node-name': node,
76         self.checkBlockDriverState(node)
79     def delBlockDriverState(self, node, expect_error = False):  argument
80         self.checkBlockDriverState(node)
81         result = self.vm.qmp('blockdev-del', node_name = node)
86         self.checkBlockDriverState(node, expect_error)
110     def ejectDrive(self, device, node, expect_error = False,  argument
112         self.checkBlockDriverState(node)
116             self.checkBlockDriverState(node)
119             self.checkBlockDriverState(node, not destroys_media)
122     def insertDrive(self, device, node):  argument
123         self.checkBlockDriverState(node)
125                     id = device, node_name = node)
126         self.checkBlockDriverState(node)
129     def createSnapshotSync(self, node, overlay):  argument
130         self.checkBlockDriverState(node)
132         opts = {'node-name': node,
134                 'snapshot-node-name': overlay,
137         self.checkBlockDriverState(node)
141     def createSnapshot(self, node, overlay):  argument
142         self.checkBlockDriverState(node)
145                     node = node, overlay = overlay)
146         self.checkBlockDriverState(node)
150     def createMirror(self, node, new_node):  argument
152         opts = {'device': node,
153                 'job-id': node,
155                 'node-name': new_node,
166     # Add a BlkDebug node
169     def addBlkDebug(self, debug, node):  argument
170         self.checkBlockDriverState(node, False)
173                  'node-name': node,
177                 'node-name': debug,
180         self.checkBlockDriverState(node)
183     # Add a BlkVerify node
192                   'node-name': test,
196                   'node-name': raw,
200                 'node-name': blkverify,
208     # Add a Quorum node
215                    'node-name': child0,
219                    'node-name': child1,
223                 'node-name': quorum,
259         # The node can't be removed: the new device has an extra reference
311         # 'node0' is used by the blkdebug node
313         # But we can remove the blkdebug node directly
323         # But we can remove the blkverify node directly
334         # But we can remove the Quorum node directly