We've had a long time intermittent issue with accessing the LSI RAID controller in DSS from MSM on an external PC. Setting the Hardware RAID user credentials in DSS isn't a problem, but when the Open-E server itself has multiple interfaces (say one for management, two for iSCSI), the internal binding seems to pick random interfaces rather than the DSS management interface. In the past, I've had to plug a laptop into the back of the array with an IP on the same subnet as an iSCSI interface, and only then can MSM on the laptop find the controller. Neither auto-discovery or manually specifying the IP in MSM makes any difference.
So, is there a way of controlling which interface the RAID controller listen's on for MSM connectivity, or can it bind to all interfaces rather than picking a random one (not ideal, but better than nothing). It would make complete sense that the RAID controller access should *always* bind to the management interface!
The MegaRAID Storage Manager application you specify the IP Address not the DSS V7. And yes you want to use the GUI management NIC. The issue your having is that the MSM is picky!! Not the DSS V7. So what you need to do is find out the build your using with the DSS V7 and match as close as possible to the firmware date of the controller then find the MSM that matches those dates. This is the issue as the MSM is very picky about that and can cause the issues your having.