Revision 0c3d9c7c lib/storage/drbd.py
| b/lib/storage/drbd.py | ||
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doesn't do anything to the supposed peer. If you need a fully |
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connected DRBD pair, you need to use this class on both hosts. |
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The unique_id for the drbd device is a (local_ip, local_port,
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remote_ip, remote_port, local_minor, secret) tuple, and it must have
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two children: the data device and the meta_device. The meta device
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is checked for valid size and is zeroed on create. |
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The unique_id for the drbd device is a (pnode_uuid, snode_uuid,
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port, pnode_minor, lnode_minor, secret) tuple, and it must have
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two children: the data device and the meta_device. The meta |
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device is checked for valid size and is zeroed on create.
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""" |
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_DRBD_MAJOR = 147 |
| ... | ... | |
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# timeout constants |
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_NET_RECONFIG_TIMEOUT = 60 |
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def __init__(self, unique_id, children, size, params): |
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def __init__(self, unique_id, children, size, params, dyn_params):
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if children and children.count(None) > 0: |
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children = [] |
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if len(children) not in (0, 2): |
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raise ValueError("Invalid configuration data %s" % str(children))
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if not isinstance(unique_id, (tuple, list)) or len(unique_id) != 6: |
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raise ValueError("Invalid configuration data %s" % str(unique_id))
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(self._lhost, self._lport, |
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self._rhost, self._rport, |
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self._aminor, self._secret) = unique_id |
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if constants.DDP_LOCAL_IP not in dyn_params or \ |
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constants.DDP_REMOTE_IP not in dyn_params or \ |
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constants.DDP_LOCAL_MINOR not in dyn_params or \ |
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constants.DDP_REMOTE_MINOR not in dyn_params: |
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raise ValueError("Invalid dynamic parameters %s" % str(dyn_params))
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self._lhost = dyn_params[constants.DDP_LOCAL_IP] |
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self._lport = unique_id[2] |
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self._rhost = dyn_params[constants.DDP_REMOTE_IP] |
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self._rport = unique_id[2] |
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self._aminor = dyn_params[constants.DDP_LOCAL_MINOR] |
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self._secret = unique_id[5] |
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if children: |
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if not _CanReadDevice(children[1].dev_path): |
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logging.info("drbd%s: Ignoring unreadable meta device", self._aminor)
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children = [] |
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super(DRBD8Dev, self).__init__(unique_id, children, size, params) |
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super(DRBD8Dev, self).__init__(unique_id, children, size, params, |
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dyn_params) |
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self.major = self._DRBD_MAJOR |
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info = DRBD8.GetProcInfo() |
| ... | ... | |
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if (self._lhost is not None and self._lhost == self._rhost and |
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self._lport == self._rport): |
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raise ValueError("Invalid configuration data, same local/remote %s" %
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(unique_id,)) |
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raise ValueError("Invalid configuration data, same local/remote %s, %s" %
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(unique_id, dyn_params))
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self.Attach() |
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@staticmethod |
| ... | ... | |
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base.ThrowError("Can't initialize meta device: %s", result.output)
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@classmethod |
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def Create(cls, unique_id, children, size, spindles, params, excl_stor): |
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def Create(cls, unique_id, children, size, spindles, params, excl_stor, |
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dyn_params): |
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"""Create a new DRBD8 device. |
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Since DRBD devices are not created per se, just assembled, this |
| ... | ... | |
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if excl_stor: |
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raise errors.ProgrammerError("DRBD device requested with"
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" exclusive_storage") |
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if constants.DDP_LOCAL_MINOR not in dyn_params: |
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raise errors.ProgrammerError("Invalid dynamic params for drbd device %s"
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% dyn_params) |
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# check that the minor is unused |
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aminor = unique_id[4]
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aminor = dyn_params[constants.DDP_LOCAL_MINOR]
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info = DRBD8.GetProcInfo() |
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if info.HasMinorStatus(aminor): |
| ... | ... | |
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aminor, meta) |
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cls._CheckMetaSize(meta.dev_path) |
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cls._InitMeta(aminor, meta.dev_path) |
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return cls(unique_id, children, size, params) |
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return cls(unique_id, children, size, params, dyn_params)
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def _CanReadDevice(path): |
Also available in: Unified diff