RAC exceptions due to storage link problems
Yesterday, someone added me, said to have met the RAC problem. The environment is an Oracle 11.0.2.4,2 node. as follows, the CRSD is down and the cluster does not automatically switch. And there were several times.
I gave the guy a log.
Through the log, you can see 1, 2 nodes CRSD service reboot only 1 seconds, voting FILE/DEV/RAW/RAW1 can not provide service for 2 seconds. The two-node CRSD is restarted at the same time and is almost certain not to be the RAC itself.
Node 1:2016-03-18 23:25:38.643:[CSSD (6930)]crs-1615:no I/O have completed after 50% of the maximum interval. Voting file/dev/raw/raw1 'll be considered not functional in 99220 milliseconds
2016-03-18 23:26:58 crsd rebootcrsd exiting:could not init OCR, code:26
Node 2:2016-03-18 23:25:36.834:[CSSD (6590)]crs-1615:no I/O have completed after 50% of the maximum interval. Voting file/dev/raw/raw1 'll be considered not functional in 99760 milliseconds
2016-03-18 23:26:59 crsd rebootcrsd exiting:could not init OCR, code:26
Look at the OS log again, the remote fiber port (WWN = 50:0b:34:20:0f:f4:f8:08) connectivity is lost. There must be a problem with the storage link. Node 1Mar 23:26:38 Xxxxr01 KERNEL:BFA 0000:81:00.0:remote port (WWN = 50:0b:34:20:0f:f4:f8:08) connectivity lost for log ical port (wwn = 21:00:00:24:ff:09:a5:8a) Mar 23:26:38xxxxr01kernel:bfa 0000:81:00.0:target (wwn = 50:0b:34:20:0f:f4:f 8:08) connectivity lost for initiator (WWN = 21:00:00:24:ff:09:a5:8a)
Node 2Mar 23:26:48 xxxx02 KERNEL:BFA 0000:81:00.0:remote port (WWN = 50:0b:34:20:0f:f4:f8:08) connectivity lost for Logi Cal Port (wwn = 21:00:00:24:ff:09:a5:a2) Mar 23:26:48 xxxr02 kernel:bfa 0000:81:00.0:target (wwn = 50:0b:34:20:0f:f4:f 8:08) connectivity lost for initiator (WWN = 21:00:00:24:FF:09:A5:A2)
Today, chatting with this guy, we've contacted the storage vendor to check the storage link. Storage is the Acer, I first heard that there are domestic storage, but also long insight.
In RAC, there is a problem, and many times it is not a RAC problem. A problem with the storage link causing the RAC to fail to provide services I have met several times. The DBA encounters a RAC exception, and the software and hardware must be taken care of to quickly locate the problem.
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http://www.bkjia.com/PHPjc/1114839.html www.bkjia.com true http://www.bkjia.com/PHPjc/1114839.html techarticle RAC exception caused by storage link problems yesterday, someone added me, saying that I had a RAC problem. The environment is an Oracle 11.0.2.4,2 node. as follows, the CRSD is down and the cluster does not automatically switch. And ...
