GPFS keeps its connection constantly open.
We did some more tests with iperf: If we don't run bidirectional tests, all connections keeps running smoothly. If we add bidirectional tests, it becomes unstable. Certainly if this is done on multiple nodes. Is this normal? The failed iperf tests give the same error in the switch log: May 22 08:14:59 topspin-120sc ib_sm.x[618]: %IB-6-INFO: Generate SM OUT_OF_SERVICE trap for GID=fe:80:00:00:00:00:00:00:00:05:ad:00:00:08:a8:71 May 22 08:14:59 topspin-120sc ib_sm.x[618]: %IB-6-INFO: Generate SM DELETE_MC_GROUP trap for GID=ff:12:60:1b:ff:ff:00:00:00:00:00:01:ff:08:a8:71 May 22 08:14:59 topspin-120sc ib_sm.x[618]: %IB-6-INFO: Configuration caused by discovering removed ports May 22 08:15:00 topspin-120sc ib_sm.x[621]: %IB-6-INFO: Program switch port state to down, node=00:05:ad:00:00:0b:a2:cc, port= 6, due to non-responding CA May 22 08:15:00 topspin-120sc port_mgr.x[497]: %PORT-6-INFO: port down - port=1/6, type=ib4xTXP May 22 08:15:00 topspin-120sc diag_mgr.x[508]: %DIAG-6-INFO: in portTblFindEntry() - IfIndex=70(1/6) May 22 08:15:00 topspin-120sc diag_mgr.x[508]: %DIAG-6-INFO: cannot find entry - IfIndex=70(1/6) May 22 08:15:04 topspin-120sc ib_sm.x[618]: %IB-6-INFO: Configuration caused by discovering new ports May 22 08:15:04 topspin-120sc ib_sm.x[618]: %IB-6-INFO: Configuration caused by multicast membership change May 22 08:15:04 topspin-120sc ib_sm.x[618]: %IB-6-INFO: Generate SM IN_SERVICE trap for GID=fe:80:00:00:00:00:00:00:00:05:ad:00:00:08:a8:71 May 22 08:15:05 topspin-120sc port_mgr.x[497]: %PORT-6-INFO: port up - port=1/6, type=ib4xTXP May 22 08:15:07 topspin-120sc ib_sm.x[632]: %IB-6-INFO: Generate SM CREATE_MC_GROUP trap for GID=ff:12:60:1b:ff:ff:00:00:00:00:00:01:ff:08:a8:71 May 22 08:15:08 topspin-120sc ib_sm.x[618]: %IB-6-INFO: Configuration caused by multicast membership change RC3 is just installed. Results will follow soon. Regards, Koen ________________________________ Van: Ami Perlmutter [mailto:[EMAIL PROTECTED] Verzonden: dinsdag 22 mei 2007 10:33 Aan: Shirley Ma CC: SEGERS Koen; [EMAIL PROTECTED]; [email protected] Onderwerp: Re: [ofa-general] GPFS node loses IB-connection does the application constantly open and close connections? *** Disclaimer *** Vlaamse Radio- en Televisieomroep Auguste Reyerslaan 52, 1043 Brussel nv van publiek recht BTW BE 0244.142.664 RPR Brussel http://www.vrt.be/disclaimer
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