Re: [Xen-API] [Xen-users] LiveStorageMigration Error "The attempt to mark the VDI as hidden failed "

[Thanos Makatos <thanos.makatos@xxxxxxxxxx>]

(Adding back xen-api!)

> -----Original Message-----
> From: Thomas Plant | Limitis [mailto:Thomas.Plant@xxxxxxxxxxx]
> Sent: 26 July 2013 10:29
> To: Thanos Makatos
> Subject: AW: [Xen-users] LiveStorageMigration Error "The attempt to
> mark the VDI as hidden failed "
> 
> [26580] 2013-07-25 14:46:30.692462      Raising exception [80, Failed
> to mark VDI hidden [opterr=SR 02020387-8bff-73ea-f9b0-a7c87e0618c2:
> error aborting existing process]]
> 
> Didn't look on the pool master *shame myself*.
> 
> But it is the source iSCSI SR which gave the error.
> 
> -----UrsprÃngliche Nachricht-----
> Von: Thanos Makatos [mailto:thanos.makatos@xxxxxxxxxx]
> Gesendet: Freitag, 26. Juli 2013 11:12
> An: Thomas Plant | Limitis
> Cc: xen-api@xxxxxxxxxxxxx
> Betreff: RE: [Xen-users] LiveStorageMigration Error "The attempt to
> mark the VDI as hidden failed "
> 
> (Adding back xen-api.)
> 
> > -----Original Message-----
> > From: Thomas Plant | Limitis [mailto:Thomas.Plant@xxxxxxxxxxx]
> > Sent: 26 July 2013 09:59
> > To: Thanos Makatos
> > Subject: AW: [Xen-users] LiveStorageMigration Error "The attempt to
> > mark the VDI as hidden failed "
> >
> > Thanks for the answer. Now I have more peace of mind â
> >
> > Think this is what happened:
> >
> > [32090] 2013-07-25 14:45:06.112002ÂÂÂÂÂ vdi_deactivate {'sr_uuid':
> > '02020387-8bff-73ea-f9b0-a7c87e0618c2', 'subtask_of':
> > 'DummyRef:|0b5a7cb9-3ce9-1927-740c-0c485338655e|VDI.deactivate',
> > 'vdi_r
> > ef': 'OpaqueRef:ca04b4bd-7a30-6d2d-4123-abea0481744d', 'vdi_on_boot':
> > 'persist', 'args': [], 'vdi_location': 'caf50bb5-84e3-472f-ac61-
> > 260f552e63aa', 'host_ref': 'OpaqueRef:cb8dbdb0-2284-037e-b 2a5-
> > f0a15e506331', 'session_ref': 'OpaqueRef:53d97ff4-0d38-22dc-4be5-
> > 9d464d500f40', 'device_config': {'target': '172.16.11.1',
> > 'chappassword_secret': 'e1a723c1-dc27-5f17-dfb8-159a88a0268a', 'c
> > hapuser': 'iqn.2013-04.it.zcom.xen-5:666767f1', 'multihomelist':
> > '172.16.11.1:3260,172.16.10.1:3260', 'targetIQN': 'iqn.1992-
> > 05.com.emc:ckm001234018772007-4', 'SRmaster': 'false', 'device': '/
> > dev/disk/mpInuse/36006048c35b5f8d8e7052aa9e584440e', 'SCSIid':
> > '36006048c35b5f8d8e7052aa9e584440e', 'port': '3260'}, 'command':
> > 'vdi_deactivate', 'vdi_allow_caching': 'false', 'sr_ref': 'Opaqu
> > eRef:9b6457c9-221a-18f8-90b2-e6619360a7f3', 'vdi_uuid':
> > 'caf50bb5-84e3- 472f-ac61-260f552e63aa'} [32090] 2013-07-25
> > 14:45:06.112319ÂÂÂÂÂ blktap2.deactivate [32090]
> > 2013-07-25 14:45:06.112462ÂÂÂÂÂ lock: acquired /var/lock/sm/caf50bb5-
> > 84e3-472f-ac61-260f552e63aa/vdi [32090] 2013-07-25 14:45:06.189559
> > unlink of attach_info failed
> >
> > and the sr_uuid is the one from which we migrated away.
> 
> I don't think this is the correct excerpt, could you search
> /var/log/SMlog* for the string "Failed to mark VDI hidden"?
> 
> >
> > Von: Thanos Makatos [mailto:thanos.makatos@xxxxxxxxxx]
> > Gesendet: Freitag, 26. Juli 2013 10:32
> > An: Thomas Plant | Limitis
> > Cc: xapi-users@xxxxxxxxxxxxxxxxxxxx
> > Betreff: RE: [Xen-users] LiveStorageMigration Error "The attempt to
> > mark the VDI as hidden failed "
> >
> > (Thatâs a XenServer-specific error, dropping xen-users and CCing
> xapi-
> > users)
> >
> > Weâve seen such an error before and it had to do with marking the
> > source VDI as delete-able. The cause was a race condition with the
> > GC/cleanup daemon.
> >
> > If you say that the VM is running on the destination, you can check
> > /var/log/SMlog and ensure that the VDI for which the error was raised
> > is the VMâs VDI on the source host. If this is the case everything
> > should be OK.
> >
> > From: xen-users-bounces@xxxxxxxxxxxxx [mailto:xen-users-
> > bounces@xxxxxxxxxxxxx] On Behalf Of Thomas Plant | Limitis
> > Sent: 25 July 2013 14:34
> > To: xen-users@xxxxxxxxxxxxx
> > Subject: [Xen-users] LiveStorageMigration Error "The attempt to mark
> > the VDI as hidden failed "
> >
> > Hello.
> >
> > We are moving some VMs on XCP 1.6 from an iSCSI Storage to another.
> > One VM gave the following error:Â The attempt to mark the VDI as
> > hidden failed
> >
> > But, all data has been moved to the new storage, the VM is working
> and
> > at first sight seems ok.
> > But can I trust it? Anyboday had similar errors?
> >
> > Thanks
> > Thomas

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