0 Replies Latest reply: Dec 24, 2013 7:45 AM by WAYNEWATKINS RSS

Cluster question

WAYNEWATKINS
Currently Being Moderated

Hello,

 

We have recently experienced an issue where looking at the LUN CONFIG CHECK in the ASUP we see the following

 

===== LUN CONFIG CHECK =====

Cluster communications timed out trying to get partner lun list for 21:00:00:1b:32:80:f3:6b

Cluster communications timed out trying to get partner lun list for 21:01:00:1b:32:a0:f3:6b

Cluster communications timed out trying to get partner lun list for 21:00:00:1b:32:80:1d:8f

Cluster communications timed out trying to get partner lun list for 21:01:00:1b:32:a0:1d:8f

...output truncated....

 

This was after a particular FAS270 controller was failed over so the NVRAM battery could be replaced. The battery was installed with a low charge so was down for a while (approx 20hours). When the controller did eventually start booting up, it sat waiting for giveback and a cf giveback was executed successfully. After a couple hours we saw messages reporting cluster enabled and disabled (unsynchronised log) every so often and we couldn't online certain LUNs that went offline. We also saw some FCP Partner Path Misconfigured messages just after the cluster started playing up. I'm thinking this may have saturated the Cluster Interconnect?

 

Eventually, we had to shutdown all connected hosts to both controllers and reboot the controllers. Everything can back up cleanly.

 

Has anyone seen this issue before?

 

Thanks

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