About 2 weeks ago my Pegasus R6 started disappearing from the list of mounted drives. It also doesn't show up in Disk Utility at all. I have to unplug the power cord and plug it back in for it to show up.
Any ideas what I can do to troubleshoot? Thanks
macOS Sierra 10.12.4
Mac Mini server (2012)
Promise Utility Version 3.20.0000.15 (C03)