Hello wyszynski,  When a cluster *disappears*, I have generally seen this as an issue with the config.pickle file that lives in you cluster datastore. Unfortunately, due to the delicate nature of this file, we cannot address fixing it from Support. What I can offer is one solution that has been fully tested that may help you through this:  Since this is a complicated process, I would recommend creating an SR with Support to address the datastore merge. To create a service request, you have a couple options:  1. Log in to your online account on support.emc.com and go to this page: [URL] 2. Call in to EMC Isilon Support at 1-800-782-4362 (For a complete local country dial list, please see this document: [URL]  Please let us know if you run in to any trouble! We're more than happy to help.
G'Day,  Just throwing this out there for any possible fix:  Our 2nd cluster had a NIC error and subsequent network issues, during which time the InsightIQ *lost* communication. When I attempt to "Add Cluster" again, it states that:  "The cluster containing the node xxxx is already being monitored"  I've had to restart both the 2nd cluster and the InsightIQ a few times, but it still wont re add.  Any tips?  I know I could delete the datastore there and start it as a fresh monitor (the 2nd cluster is not really production yet) but I'm hoping that if I get a little guidance it might help if this occurs again.  Thanks!  __LEO__
InsightIQ 3.01 - Lost 2nd cluster - cant re-add