interesting scenario

Doug Hughes Doug.Hughes
Mon, 23 Mar 1998 08:51:29 -0600


>
>Doug Hughes wrote:
>> 
>> I've got two hosts and two arrays. They are cross connected.
>> Host1 sees everything as copacetic. Host2 continually reports:
>> soc0: port 1: Fibre Channel is OFFLINE
>> soc0: port 1: Fibre Channel is ONLINE
>> 
>> about every 2 seconds or so.
>> 
>> When I do a boot -r I get this:
>> NOTICE: pln1: Old SSA firmware has been detected (Ver:) - Please upgrade
>> 
>> Which is nonsense because both arrays are definitely at
>> firmware rev 3.12. Both systems have identical patches.
>> 
>> I'm putting my money on the 2nd fiber optic module plugged into
>> the SBUS card on host2. Any dissenting opinion?
>> 
>>         Doug
>
>This could be correct, but it can also be the fiber optic module
>in the SSA itself. I haven't figured out how to determine if these
>messages come from the fiber optic module in the host or the SSA,
>so I usually try to change the one in the SSA first, as it is
>involves less than taking down the host (if you have several SSAs
>connected). If anyone has a any solutions to determine in what end
>the fiber module is failing, I'd be happy for a reply.
>

Well, in the case of dual connected hosts (like I have) it's rather
easy. Just swap secondary fibers.
If the problem follows the fiber it's the fiber or the host FOM, if not,
it's the SSA FOM.

--
____________________________________________________________________________
Doug Hughes					Engineering Network Services
System/Net Admin  				Auburn University
			doug@eng.auburn.edu