Thunderbolt Pegasus R4 Experience?

Has anyone else got any first hand experience of the Promise Pegasus R4 (or R6) with their iMac? I bought mine this week and managed to load it up with around 1.4Tb (it holds around 3Tb) no problem. Now, today I can't get the drive to stay connected before it ejects for more than 5 minutes. It's driving me mad and I'm very concerned as I moved all my family video onto it from another drive and it won't stay connected long enough to get it back onto another drive again.

iMac, Mac OS X (10.6.8), 2011 i7 3.4, 256Gb SSD and 16Gb RAM

Posted on Jul 16, 2011 8:38 AM

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455 replies

Jan 7, 2012 2:01 PM in response to nanofunk.net

I am yet to purchase, and based on the experiences here, I am unlikely to do so. I am sorry to here of your problems and hope that either Apple or Promise will take note, provide some feedback that they are actually doing something, and resolve this issue for you. I find it most disturbing that Apple are still offering this unit as a configuration option when purchasing a new Mac online given the issues that so many of you have.


Maybe some more public pressure is required. I wrote to MacRumors submissions (http://www.macrumors.com) via the 'Share It' link to see if they would run the story - but nothing happened. Perhaps if more people wrote in highlighting the same issue - just an idea.


My experiences with Promise so far - on 15/11/2011 I sent the following email to sales@promise.com:


[I am a Mac owner and I want to purchase a 12TB Pegasus R6 but I am troubled by the following report: "The Pegasus R4 and R6 RAID units from Promise which are connected to the Mac via Thunderbolt are reported to be intermittently disconnecting, a number of users have said that the drives randomly disconnect, both Promise and Apple are said to be looking at the issue. A couple of users have said the the problems appear to be caused by phone interference, this can be replicated by holding the phone close to the Thunderbolt cable, as calls are received the drives disconnect. One user reported to have cured the problem by wrapping the cable with tin foil."


and as documented by all the users in the following thread:

https://discussions.apple.com/thread/3181015?answerId=16717630022#16717630022


I do not want to purchase at the moment until I know that this problem has been acknowledged, that a cause is being identified, and that a solution is being worked on. Obviously my concerns are that it could be any of the following: Mac software or hardware related; Thunderbolt cable related; or Pegasus hardware or software related.

I am hoping that by writing to you, you will be able to shed some light on the situation. There is obviously an issue, and for my confidence to be restored in your product, and to allow me to move closer to a purchasing decision, I would like to know what the current situation is.]


I received no answer.


On the 24/11/2011 I then sent the following email to sales@promise.com, sales@eu.promise.com, sales-de@eu.promise.com, sales@tw.promise.com:


[As a potential new customer, I am extremely disheartened, to have received absolutely no reply whatsoever to my email enquiry below. My email was sent about 10 days ago to sales@promise.com (support@promise.com bounced?). I am contacting your other offices as well, in the hope that someone will reply.As a business customer, I am now extremely worried that investing in your products would be a wise thing to do.]


On the 24/11/2011 - I did receive a reply from the Taiwan office:

[Dear Alan and Jog, Please response this Pegasus technical issue as describe below. Thank you! Phil]


That is the last I heard then I just gave up. Maybe someone there will listen: phil.zen@tw.prom**e.com, alan.chu@tw.prom**e.com, jog.hung@tw.prom**e.com, charles.kao@tw.prom**e.com


< Emails Edited By Host >



Jan 10, 2012 2:14 PM in response to Infotech 24 7

Just for your info:


Had major problem with my Promise R6 freezing up after approx 25% transfer from my new Imac.

Whatever i was trying to transfer it just froze up, had to hard-restart the mac and disconnect the power cord to the R6. Tried a bunch of different things until i finally read this thread and tried turning the thunderbolt cable the other way around and using the left thunderbolt port on the R6. Since then i have had no problem whatsoever...


Best


Daniel

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