An indication (icon or warning text) of unconnected/unauthenticated initiators. Via the CLI, we created hosts that had invalid WWN's and there is no graphical indication that these hosts are not actually found by the XtremIO.
Limiting of IO at a LUN or folder level. We have user/customer VMs on dedicated LUNs that we would like to prioritize lower or limit IO on so that users/customers cannot capitalize system resources. Our only option to do so currently, is a manual process of limiting IO on a per VM basis and if the LUN was used for either a Linux or Windows mount, it would make limiting IO even harder.
Display a prominent confirmation or warning dialog if a LUN is numbered differently across hosts. I can't think of a reason why LUN numbers should/would be numbered differently across hosts, but at least provide a confirmation or warning dialog if a user is attempting such a non best practice.
Fixing the XtremIO documented issue with ntp changes on the XMS VM displaying alerts for 5 hours (Article Number:000184503 Version:3) would be very favorable. We effectively had to stop work the first day due to continual errors blocking access to the XtremIO GUI. The fix was to wait 5 hours for the errors to go away.