Fibre Channel (SAN)

Reply
Occasional Contributor
Posts: 19
Registered: ‎01-28-2010

Core Switch Blade - DCX - Performance Issues

Did any one experience a performance issue on Hosts just before Core Switch Blade is showing up with hardware error ?

Super Contributor
Posts: 635
Registered: ‎04-12-2010

Re: Core Switch Blade - DCX - Performance Issues

Do you have some more details?

Are all your FC ports error free?

Any error messages?

Regards,

Andreas

Occasional Contributor
Posts: 19
Registered: ‎01-28-2010

Re: Core Switch Blade - DCX - Performance Issues

Well, I would like to share my experiences here....

Performance has been degraded on some of the servers connected on this switch. After 4 days, an alert has been generated stating Core Blade has a hardware error in Slot 8. And one of the ports on 48-port Blade in Slot 2 has become hardware fault. So we got 48-port Blade replaced, and the error on Core Blade has been restored to normalcy. As I understood from Brocade support that communication between 48-port blade to Core Blade has failed (one of ASICs)... hence hardware fault has been notified on Core Blade. Currently it is under monitoring. Will post if any developments are there...

Occasional Contributor
Posts: 15
Registered: ‎11-05-2004

Re: Core Switch Blade - DCX - Performance Issues

We are experiencing a similar issue on our DCX's

Dec 27 22:11:32  raslogd: 2010/12/27-22:11:30, , 65095, SLOT 6 | WWN 10:00:00:05:33:0b:0e:00 | CHASSIS, CRITICAL, IBM_2499_384, S5,C3: Internal monitoring has identified suspect hardware, blade may need to be reset or replaced: fau1:1154, fau2:-268435352 th2:0x90000064
Dec 27 22:11:32  raslogd: 2010/12/27-22:11:30, , 65095, SLOT 6 | WWN 10:00:00:05:33:0b:0e:00 | CHASSIS, CRITICAL, IBM_2499_384, S5,C3: Internal monitoring has identified suspect hardware, blade may need to be reset or replaced: fau1:1154, fau2:-268435352 th2:0x90000064
Dec 27 22:16:32 raslogd: 2010/12/27-22:16:30, , 65096, SLOT 6 | WWN 10:00:00:05:33:0b:0e:00 | CHASSIS, WARNING, IBM_2499_384, S5,C3: Internal link errors reported, no hardware faults identified, continuing monitoring: fault1:1157, fault2:-268435456 thresh1:0x8000000a
Dec 27 22:16:32 raslogd: 2010/12/27-22:16:30, , 65096, SLOT 6 | WWN 10:00:00:05:33:0b:0e:00 | CHASSIS, WARNING, IBM_2499_384, S5,C3: Internal link errors reported, no hardware faults identified, continuing monitoring: fault1:1157, fault2:-268435456 thresh1:0x8000000a

It is reporting that Slot 5 is the culprit, but we are not even stacking these.   Are you suggesting that the replacement blade with ports fixed the error you were seeing in slot 8?   Slot 5 and 8 are the innerconnect boards right?

So did the replacement of blade 2 fix the errors you were seeing on blade 8?

For what it's worth we are using the 64 port 8 gb blades.

Thanks,

Alex

Occasional Contributor
Posts: 19
Registered: ‎01-28-2010

Re: Core Switch Blade - DCX - Performance Issues

Yes, the same errors, we also received.

Please send the SupportSave to Brocade thru IBM - 2nd Level Support. Replace the 64 Port blade, where the switch port has become fault. As per our experience, we did not have to replace the Core Blade in the Switch.

Now it is all working in good order.

Occasional Contributor
Posts: 15
Registered: ‎11-05-2004

Re: Core Switch Blade - DCX - Performance Issues

Interesting,

     Thanks for the quick reply.   I am not seeing any issues on any ports, but there are only a handful of ports in use, as these are new to our environment.  Perhaps there is one hidden in an unused port somewhere.   IBM is sending a new interconnect blade, but it sounds like that is not the problem.  Looking though the errlog on the switch shows no bad ports, switchshow shows either nolight or connected, and sfpshow looks good as well.

I will keep you posted on the blade replacement.

We are running 6.4.0c, but we have seen the CP's on both of our DCX's panic once in the last month.  Support says this is a known bug addressed in 6.4.1c which is currently not available !

Alex

Join the Community

Get quick and easy access to valuable resource designed to help you manage your Brocade Network.

vADC is now Pulse Secure
Download FREE NVMe eBook