[Linux-cluster] sudden unfencing problem

[James Washer]

You might want to grab a tcpdump of the connection. Perhaps you'll be able
to see a bit more of the conversation.

On Sat, Mar 23, 2013 at 5:55 AM, Laurence Schuler <laurence.schuler at nasa.gov
> wrote:

> I have a two node cluster that has been running fine for a couple of
> months (little to 0 reboots though). We recently updated the software
> with the latest Centos 6 software but now the cluster will not start. It
> keeps throwing errors during startup when attempting to unfence the
> disks. I have hard reset the fiber switch, and reset both hosts, but
> when I run fence_sanbox2, I am unable to either enable, disable or even
> get status of the switch ports. This is the error I get.
>
> > [root at web1 lschule3]# /usr/sbin/fence_sanbox2 -a 192.168.1.190 -l
> > admin -S FCpass.sh -o enable -n 5 -v
> > telnet> set binary
> > Negotiating binary mode with remote host.
> > telnet> open 192.168.1.190 -23
> > Trying 192.168.1.190...
> > Connected to 192.168.1.190.
> > Escape character is '^]'.
> >
> > Firmware V8.0.13.8.0
> >
> > r3fc1 login:
> >
> >
> >   Establishing connection...   Please wait.
> >
> >        *****************************************************
> >        *                                                   *
> >        *       Command Line Interface SHell  (CLISH)       *
> >        *                                                   *
> >        *****************************************************
> >
> >        SystemDescription   SANbox 5800 FC Switch
> >        HostName            r3fc1
> >        EthIPv4NetworkAddr  192.168.1.190
> >        EthIPv6NetworkAddr  fe80::2c0:00:00:90b
> >        MACAddress          00:c0:dd:77:10:0b
> >        WorldWideName       10:00:00:c0:dd:24:09:0b
> >        SerialNumber        1236H00833
> >        SymbolicName        r3fc1
> >        ActiveSWVersion     V8.0.13.8.0
> >        ActiveTimestamp     Mon Apr  2 18:32:33 2012
> >        POSTStatus          Passed
> >        LicensedPorts       12
> >        SwitchMode          Full Fabric
> >
> >   The alarm log is empty.
> >
> > r3fc1 #> r3fc1 #> Failed: Unable to switch to admin section
> > [root at web1 lschule3]#
>
> I can manually telnet into the FC switch and execute the appropriate
> commands to enable/disable ports. But the fence_sanbox2 script will not.
> The fence_sanbox2 code has not changed, however python has been upgraded
> from 2.6.6-29 to 2.6.6-36.
>
> Has anyone else seen this? Know of a fix? Am I doing/not doing something
> stupid? I seem to recall running this command before during setup and it
> worked just fine then.
>
> Thanks for any help!
>
> --
> Laurence Schuler (Larry)                       Laurence.Schuler at nasa.gov
> Systems Support                                       ADNET Systems, Inc
> Scientific Visualization Studio                 http://svs.gsfc.nasa.gov
>
> --
> Linux-cluster mailing list
> Linux-cluster at redhat.com
> https://www.redhat.com/mailman/listinfo/linux-cluster
>



-- 


 - jim
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