The motherboard seems fine until 5/6 disks are added and even then not problems are reported.įrom what I can see, the spec on the side of the PSUs from R6 and R4 are exactly the same however I am now wondering if the PSU is actually downgraded or has even been swapped out for one from an R4. It must either be the motherboard or the PSU. I even tried another power supply from a Pegasus R4 and I get the same problem so this seems to elimate the PSU. Eveyhting is fine until the 5th and 6th disks are added and then it kind of freezes up. I have tried it on two separate computers with three different start-up drives running different Mac OSX 10.14, 1015 and OS11. After a short while the thing hangs and PU will not respond alhtough the moment I unplug the Pegasus, PU will start up (I know this is not good protocol but it elimiates PU from the equation). I have got as far as formatting a logical drive RAID 6 with it however this is where the problems start. It seems superficially fine but doesnt want to seem to mount although PU reports all disks OK and all other parts gets green ticks. My Pegasus R6 was inherited so I'm not sure of service history. I don't think it is software related - either Mac or PU reasosn below. So just to recap on this Sherlock Holmes type journey. Is there any way to hard reset it? There appears to be a button on the back underneath the cover plate but this doesnt seem to do anything.Īnyone got any ideas? I realise it is EOL and not covered by Promise but maybe someone knows.

I've narrowd it down to something on the board of the Pegasus. I've tried a different set of drives, a different computer, different TB cable and even a different power supply from another R6. In order to get it back online, I have to unplug power and thunderbolt and then it appears and eveybhting seems hunky dory but then it goes again. I've even managed to stripe an array and mount it but the connection seems very very unstable and is lost. It will connect to Promise Utility if the drives are introduced one by one into the enclosure they appear as physical drives, however after about five or six drives are in the enclosure, something goes wrong and the connection appears to be lost. I've got an original R6 with 2TB drives in it and something is not right.

Pegasus2 r6