Pegasus R6 dropping from disk list every day or so

  • Last Post 10 April 2017
Eric Smith posted this 31 March 2017

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)

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Eric Smith posted this 31 March 2017

A drive just failed completely. That must have been triggering the disconnect, but upon power-cycling the drive came back as healthy and I never saw the failure before.

I'm replacing the drive, but is there a way in the logs to determine which drive was failing? Since I never saw the failure, I never knew which slot might have been causing the issue.

Raghuraman Kannan posted this 04 April 2017

Hi Eric,

In order to find the exact problem please send us the latest subsystem report.

Steps to save the subsystem report :

- Open Promise Utility

- Click subsystem information icon on the top of the window

- Click the lock symbol on the left bottom corner of the screen to unlock the utility

- Click on save service report button to save the subsystem report.

Open a case at and attach the file for our review.

Thanks !

Eric Smith posted this 10 April 2017

Will do. Right now it appears to be working. I'll run a report next time it happens.