Re: [Xen-users] lvm+drbd+xen problem

[Gabriele kalus <gabriele.kalus@xxxxxxxxxxx>]

Hi Daniel,

I get this behaviour when the DomUs are installed on a drbd device as a 
block device and the DomUs are active on them. I can't use the 
"drbd:RESOURCE" since I'm using the drbd v0.7.22 shipped with SLES10 and 
not drbd 8.x. I am using "phy:/dev/drbdx" when the Xen host dies on me.
I don't get anything in the log files since the Xen host hangs 
instantly, I don't get anything in the passive Xen host either, except 
some normal lines that it lost contact with the other Xen host.
Jun 13 11:20:44 vh2 kernel: drbd0: PingAck did not arrive in time.
Jun 13 11:20:44 vh2 kernel: drbd0: drbd0_asender [17646]: cstate 
Connected --> NetworkFailure
Jun 13 11:20:44 vh2 kernel: drbd0: asender terminated
Jun 13 11:20:44 vh2 kernel: drbd0: drbd0_receiver [17590]: cstate 
NetworkFailure --> BrokenPipe
Jun 13 11:20:44 vh2 kernel: drbd0: short read expecting header on sock: 
r=-512
Jun 13 11:20:44 vh2 kernel: drbd0: worker terminated
Jun 13 11:20:44 vh2 kernel: drbd0: drbd0_receiver [17590]: cstate 
BrokenPipe --> Unconnected
Jun 13 11:20:44 vh2 kernel: drbd0: Connection lost.
Jun 13 11:20:44 vh2 kernel: drbd0: drbd0_receiver [17590]: cstate 
Unconnected --> WFConnection
etc

Gabriele

Daniel Asplund wrote:
> Hejsan Garbriele,
>
> Just trying to get clear on when you are having this issue. So you
> basically experience this when your DomU is directly using the DRBD
> device? I assume you use "drbd:RESOURCE" on the disk config line? Have
> you tried if you get the same behaviour with "phy:/dev/drbdx"?
>
> Do you see anything in the log files when you pull the cable or does
> it hang instantly?
>
> //Daniel
>
>
>   
> > I have tested to install the domUs on file systems on the drbd devices, i.e. 
> > with the drbd devices mounted and it also works as it should.
> >
> > But when I install the domUs on physical devices /dev/drbdx for the domUs and 
> > pull the network cable between the replicating nics the Xen host with the domUs 
> > running hangs.
> >     
> _______________________________________________
> Xen-users mailing list
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> http://lists.xensource.com/xen-users
>   
--
Gabriele Kalus, Ph.D.
IT-Manager
Lund University, Physics Department
Box 118 SE-22100 Lund, SWEDEN
Phone:  +46-462229675
Mobil:  0702-901227
Fax:    +46-462224709


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