Xen users - Jan 2013 - XCP 1.1 SR_BACKEND_FAILURE_46 The VDI is not available [opterr=VDI already attached RW] issue

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)

-- 
S pozdravem

Jan Martinů
VSHosting s.r.o.
Telefon: 246 035 835
Email: martinu@vshosting.cz
www.vshosting.cz