Hi All, I have a little problem with our powervault. A few weeks ago, we replaced the controller of one of our powervaults. It synced up perfectly with the configuration of the working controller and no issues were found after that. Unfortunately, 1/2 weeks ago, the problem began to start. around the same time every day (Say, 15:30/16:00/17:00) we get messages/mail that the Powervault started a failover to the other controller and after around 10 minutes jumps right back to the original controller/preferred path. if this happens, vmware machines are not reachable The machines attached are Dell Poweredges R710 with VMware (via a Dell Powerconnect switch). I already read something about redistributing disks but that's something you need to do with a maintenance window or as few I/O as possible if I'm correct? Does anyone know what to do? or does someone had this problem earlier? can this be related to the network infrastructure? Thanks in advance for your attention and reading this discussion/question Kind regards, Bjorn