Revision f2f57b6e lib/bdev.py
| b/lib/bdev.py | ||
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| 221 | 221 |
""" |
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raise NotImplementedError |
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def SetSyncSpeed(self, speed):
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"""Adjust the sync speed of the mirror.
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def SetSyncParams(self, params):
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"""Adjust the synchronization parameters of the mirror.
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In case this is not a mirroring device, this is no-op. |
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@param params: dictionary of LD level disk parameters related to the |
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synchronization. |
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|
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""" |
| 230 | 233 |
result = True |
| 231 | 234 |
if self._children: |
| 232 | 235 |
for child in self._children: |
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result = result and child.SetSyncSpeed(speed)
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result = result and child.SetSyncParams(params)
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return result |
| 235 | 238 |
|
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def PauseResumeSync(self, pause): |
| ... | ... | |
| 238 | 241 |
|
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In case this is not a mirroring device, this is no-op. |
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@param pause: Wheater to pause or resume
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@param pause: Whether to pause or resume
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""" |
| 244 | 247 |
result = True |
| ... | ... | |
| 1472 | 1475 |
# sync speed only after setting up both sides can race with DRBD |
| 1473 | 1476 |
# connecting, hence we set it here before telling DRBD anything |
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# about its peer. |
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sync_speed = self.params.get(constants.LDP_RESYNC_RATE) |
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self._SetMinorSyncSpeed(minor, sync_speed) |
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self._SetMinorSyncParams(minor, self.params) |
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|
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if netutils.IP6Address.IsValid(lhost): |
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if not netutils.IP6Address.IsValid(rhost): |
| ... | ... | |
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self._children = [] |
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|
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@classmethod |
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def _SetMinorSyncSpeed(cls, minor, kbytes):
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"""Set the speed of the DRBD syncer.
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def _SetMinorSyncParams(cls, minor, params):
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"""Set the parameters of the DRBD syncer.
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This is the low-level implementation. |
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@type minor: int |
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@param minor: the drbd minor whose settings we change |
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@type kbytes: int
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@param kbytes: the speed in kbytes/second
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@type params: dict
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@param params: LD level disk parameters related to the synchronization
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@rtype: boolean |
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@return: the success of the operation |
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|
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""" |
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result = utils.RunCmd(["drbdsetup", cls._DevPath(minor), "syncer", |
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"-r", "%d" % kbytes, "--create-device"]) |
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args = ["drbdsetup", cls._DevPath(minor), "syncer"] |
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if params[constants.LDP_DYNAMIC_RESYNC]: |
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version = cls._GetVersion(cls._GetProcData()) |
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vmin = version["k_minor"] |
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vrel = version["k_point"] |
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# By definition we are using 8.x, so just check the rest of the version |
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# number |
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if vmin != 3 or vrel < 9: |
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logging.error("The current DRBD version (8.%d.%d) does not support the"
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" dynamic resync speed controller", vmin, vrel) |
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return False |
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# add the c-* parameters to args |
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# TODO(spadaccio) use the actual parameters |
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args.extend(["--c-plan-ahead", "20"]) |
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else: |
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args.extend(["-r", "%d" % params[constants.LDP_RESYNC_RATE]]) |
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args.append("--create-device")
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result = utils.RunCmd(args) |
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if result.failed: |
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logging.error("Can't change syncer rate: %s - %s",
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result.fail_reason, result.output) |
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return not result.failed |
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def SetSyncSpeed(self, kbytes):
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"""Set the speed of the DRBD syncer.
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def SetSyncParams(self, params):
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"""Set the synchronization parameters of the DRBD syncer.
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@type kbytes: int
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@param kbytes: the speed in kbytes/second
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@type params: dict
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@param params: LD level disk parameters related to the synchronization
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@rtype: boolean |
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@return: the success of the operation |
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|
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""" |
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if self.minor is None: |
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logging.info("Not attached during SetSyncSpeed")
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logging.info("Not attached during SetSyncParams")
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return False |
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children_result = super(DRBD8, self).SetSyncSpeed(kbytes)
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return self._SetMinorSyncSpeed(self.minor, kbytes) and children_result
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children_result = super(DRBD8, self).SetSyncParams(params)
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return self._SetMinorSyncParams(self.minor, params) and children_result
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def PauseResumeSync(self, pause): |
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"""Pauses or resumes the sync of a DRBD device. |
| ... | ... | |
| 1843 | 1866 |
# the device |
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self._SlowAssemble() |
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sync_speed = self.params.get(constants.LDP_RESYNC_RATE) |
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self.SetSyncSpeed(sync_speed) |
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self.SetSyncParams(self.params) |
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| 1848 | 1870 |
|
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def _SlowAssemble(self): |
| 1850 | 1872 |
"""Assembles the DRBD device from a (partially) configured device. |
Also available in: Unified diff