Monday, March 5, 2012

Replacing iSCSI card on SAN Controller 3988

This just for information purposes only.
I discovered some erroneous behavior in the Compellent SAN, where it would, about once a week, show all paths lost to the servers. Fortunately, this has never caused any interruption of services to our users, due to all the redundancies in places.

In calling the Compellent, we found out that one of the iSCSI cards on Controller 3988 is having random panics.

They will be sending me a new replacement card. Assuming all goes well, this replacement should not incur any downtime, as the controller will fail over to 5442 during the replacement. To be on the safe side, I will do this towards the end of the day (upon receipt of the card), just in case there are some complication during the process. 




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