Re: [Xen-API] XCP 1.1 SR_BACKEND_FAILURE_46 The VDI is not available [opterr=VDI already attached RW] issue

[George Shuklin <george.shuklin@xxxxxxxxx>]

XCP 1.1?

There is few cases for that message.

1) Some hosts hangs and was forcefully rebooted
2) Some VM crashed no no lock has been removed on normal host (bug).

You can

1) use /opt/xensource/sm/resetvdis.py
2) Manually remove lock from VDI in state.db (eek, extremely low level 
hacking with horrible possible consequences)
3) Check every host in pool for hanged tapdisks (simply check all 
/proc/PID/fd for every tapdisk to see if someone still locking vdi).
Anyway, that message is just notice that lock is preventing to do bad 
stuff. If can be false alarm, or may be last thing on Earth saving your 
VMs from complete trashing.
17.01.2013 19:59, Jan MartinÅ ÐÐÑÐÑ:
> Hello
>
> I have a problem with VDI already attached RW in the "adding tag" in 
> blktap2. This issue is on all hosts in pool with attached lvmoiscsi SR.
> Is there any solution to this problem?
>
> /var/log/SMlog:
>
> [32484] 2013-01-17 14:59:44.200883 vdi_activate {'sr_uuid': 
> 'e33281eb-ba4c-3829-9b61-7c64764dff9c', 'subtask_of': 
> 'OpaqueRef:78dd7c48-383b-253c-9c2d-a60edcb9e2e1', 'vdi_ref': 
> 'OpaqueRef:9e3252f6-403b-7045-2147-401beeafc8ca', 'vdi_on_boot': 
> 'persist', 'args': ['true'], 'vdi_location': 
> 'ff54dd4f-5ad3-4cf2-814f-9abd12b1045e', 'host_ref': 
> 'OpaqueRef:a8aeb980-a584-bf7f-d9dd-377f27d030f7', 'session_ref': 
> 'OpaqueRef:5b8af71e-3432-0ce6-3ed4-4fe2fe0197a7', 'device_config': 
> {'target': '172.16.132.1', 'chappassword_secret': 
> 'b47a23a5-4939-d613-8641-51c740b8dd87', 'chapuser': 'cloud1', 
> 'targetIQN': 'iqn.2011-04.cz.vshosting:storage1.cloud1', 'SRmaster': 
> 'true', 'device': '/dev/disk/by-id/scsi-26c756e3020636239', 'SCSIid': 
> '26c756e3020636239', 'targetlist': '172.16.132.1'}, 'command': 
> 'vdi_activate', 'vdi_allow_caching': 'false', 'sr_ref': 
> 'OpaqueRef:9fc8a54a-dd45-4313-f783-7883b3335604', 'vdi_uuid': 
> 'ff54dd4f-5ad3-4cf2-814f-9abd12b1045e'}
> [32484] 2013-01-17 14:59:44.201233 blktap2.activate
> [32484] 2013-01-17 14:59:44.201476 lock: acquired 
> /var/lock/sm/ff54dd4f-5ad3-4cf2-814f-9abd12b1045e/vdi
> [32484] 2013-01-17 14:59:44.201567 Adding tag to: 
> ff54dd4f-5ad3-4cf2-814f-9abd12b1045e
> [32484] 2013-01-17 14:59:44.238928 ***** BLKTAP2:<function 
> _activate_locked at 0xb6fbc064>: EXCEPTION util.SMException, VDI 
> ff54dd4f-5ad3-4cf2-814f-9abd12b1045e already attached RW
> File "/opt/xensource/sm/blktap2.py", line 32, in wrapper
> ret = op(self, *args)
> File "/opt/xensource/sm/blktap2.py", line 1297, in _activate_locked
> if not self._add_tag(vdi_uuid):
> File "/opt/xensource/sm/blktap2.py", line 1230, in _add_tag
> raise util.SMException("VDI %s already attached RW" % vdi_uuid)
>
> [32484] 2013-01-17 14:59:44.272130 Raising exception [46, The VDI is 
> not available [opterr=VDI ff54dd4f-5ad3-4cf2-814f-9abd12b1045e already 
> attached RW]]
> [32484] 2013-01-17 14:59:44.272325 lock: released 
> /var/lock/sm/ff54dd4f-5ad3-4cf2-814f-9abd12b1045e/vdi
> [32484] 2013-01-17 14:59:44.272847 ***** vdi_activate: EXCEPTION 
> SR.SROSError, The VDI is not available [opterr=VDI 
> ff54dd4f-5ad3-4cf2-814f-9abd12b1045e already attached RW]
> File "/opt/xensource/sm/SRCommand.py", line 94, in run
> return self._run_locked(sr)
> File "/opt/xensource/sm/SRCommand.py", line 131, in _run_locked
> return self._run(sr, target)
> File "/opt/xensource/sm/SRCommand.py", line 183, in _run
> caching_params)
> File "/opt/xensource/sm/blktap2.py", line 1283, in activate
> if self._activate_locked(sr_uuid, vdi_uuid, caching_params):
> File "/opt/xensource/sm/blktap2.py", line 40, in wrapper
> raise xs_errors.XenError(excType, opterr=msg)
> File "/opt/xensource/sm/xs_errors.py", line 49, in __init__
> raise SR.SROSError(errorcode, errormessage)

_______________________________________________
Xen-api mailing list
Xen-api@xxxxxxxxxxxxx
http://lists.xen.org/cgi-bin/mailman/listinfo/xen-api