Re: [Xen-users] Issue with XEN slave server

[tech@xxxxxxxxxxxxxxxxxxx]

Hi Tim,

Thanks. We are running HyperVM. We also checked the status of the raid using 
3ware command line utility and the result is fine. 

---------------------------------------------------------------------
>info c0

Unit  UnitType  Status         %RCmpl  %V/I/M  Stripe  Size(GB)  Cache  AVrfy
------------------------------------------------------------------------------
u0    RAID-1    OK             -       -       -       372.519   OFF    OFF

Port   Status           Unit   Size        Blocks        Serial
---------------------------------------------------------------
p0     OK               u0     372.61 GB   781422768     WD-WCAS86080105
p1     OK               u0     372.61 GB   781422768     WD-WCAS86314512

---------------------------------------------------------------------

Thanks,
CPTECH

On Saturday 22 November 2008 07:44, Tim Post wrote:
> Hi,
>
> On Sat, 2008-11-22 at 07:18 +0530, tech@xxxxxxxxxxxxxxxxxxx wrote:
> > Hello,
> >
> >  One of our XEN slave server became freezed and only a reboot could make
> > it up. On checking the server's /var/log/messages, we could find the
> > following:
> >
> > ================
> >
> > Nov 20 18:16:46 s433 kernel: s:0: rejecting I/O to offline device
> >
> > Nov 20 18:16:46 s433 kernel: sd 1:0:0:0: rejecting I/O to offline device
> >
> > Nov 20 18:16:46 s433 last message repeated 85 times
> >
> > Nov 20 18:16:46 s433 kernel: sd 1:0:0:0: re:0: rejecting I/O to offline
> > device
> >
> > Nov 20 18:16:46 s433 kernel: sd 1:0:0:0: rejecting I/O to offline device
> >
> > ==================
>
> It looks like something backing a vbd vanished sometime after the guest
> started .. perhaps a problem with a SAN (or a degraded RAID) ?
>
> There should be more in your xen logs to help figure this out. Are you
> running HVM or PV guests?
>
> Cheers,
> --Tim



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