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

Aug 9, 2011 1:08 AM in response to rmichael777

I use mine as my main Aperture, Final Cut X and iTunes drive (in RAID 5). I specifically bought it for this reason due to the speed and size of it. I then have an old Hive RAID 5 4Tb (firewire 800) that I use as my Aperture Vault but then you could use any drive really for the vault. It's not advisable to rely on even a RAID 5 drive as your only drive because although it's pretty safe against failure, it's no safer against any potential file corruption.


I keep my iTunes backed up from the Pegasus onto my TimeCapsule as I double that up as my NAS drive for my Sonos and my original AVCHD files that I use in Final Cut X are all archived safely to Blu Ray discs. This I find works best for me and touch wood I've never lost anything.


The great thing about the R4/R6 is that it's incredibly fast (even faster than my SSD in the iMac) so means Aperture in particular flies along with no lag anywhere.


Fingers crossed, since I left it on it hasn't ejected again but Pegasus have confirmed to me that they believe there may be an iMac firmware update required and they are in talks with Apple regarding this. I do believe the drive is fine, I'm just a little nervous when connected to an iMac at the moment.

Aug 9, 2011 6:20 AM in response to levindenboer1975

Have you had ANY ejects? Mine has just ejected AGAIN (about the 30th time now and this is my 2nd R4). I notice you use an iMac and it appears to be the iMac that I'm having the issues with. It never ejected when it was plugged into a MacBook Pro.


I would STRONGLY recommend that anyone with an iMac does not buy one these drives until a firmware fix has been released because I'm not the only one with the problem and it's happened with 2 drives now.

Aug 9, 2011 6:24 AM in response to Infotech 24 7

I don't have any problems at all with the connections.


Are all the lights off blinking on your R4? Background task from the Promise http://127.0.0.1:8080 in your safari browser and you will see what it is doing.


But if your Laptop doesn't show this problem and you have a second R4 all ready, than i think it's the thunderbolt port on your iMac that causes this problem.


*** you tried to connect to the second thunderbolt port on your iMac?

Aug 11, 2011 6:36 AM in response to Infotech 24 7

Can anyone with a Pegasus R4/R6 please try keep iTunes running in background and maybe sync the odd iPod/iPad/iPhone now and again and see if it stays connected? This is for iMac only as I believe from my experience plugged into my MacBook Pro it's fine on everything else. EVERYTIME it's ejected (and it's a LOT of ejects) it has been running iTunes. In particular, ripping a CD or Syncing my iPhone.


Just hope this is a firmware fix and not back to Apple for repair.

Aug 30, 2011 5:44 AM in response to levindenboer1975

I feel your pain on this but I promise mine has been flawless since finding the link with the hub or ipod cable. It may be yours is a different clash of some kind but it's worth trying to remember what may have been either connected or running at the time of the eject and working back from there.


I'm not entirely convinced mine won't eject again as my firewire raid neever ejected under the same circumstances but I'd make sure you keep in contact with Pegasus throughout the process.

Sep 5, 2011 9:18 AM in response to Infotech 24 7

Hi


I have been reading this with much interest.


In troubleshooting the problems, has anyone tried a different Thunderbolt cable?

I realize it's expensive to troubleshoot with the price of these cables.


You could maybe bring your drive to the Applestore? Might be easier than bringing your whole computer.


I do not have a Pegasus, I was thinking of getting one so I am reading and researching on the subject


best of luck


thanks

Sep 5, 2011 9:30 AM in response to FrankieMTL

When I was having my problems I did indeed buy a 2nd cable but it didn't fix my problem. I've replaced my USB Hub and iPod cable and been running for about a month now without any issues. I think it may be a conflict somewhere but hopefully mine was as simple as a suspect iPod cable. I need to try some more Aperture and Final Cut to really put it to the test but 90% of my ejects we're when iTunes was running.

Sep 5, 2011 9:35 AM in response to levindenboer1975

All I know is mine eject 9 times out of 10 when the iPad, iPod or iPhone tried to sync. I changed the cables and I couldn't get it to eject anymore. I'm not suggesting that it's universally an iPod cable but you need to identify what was happening when it ejected. The best thing to do is run the Console in the Utlities program after it ejects and see if you can see anything that ran at the same time as the eject. Mine hasn't ejected now since August 9th so I'm just keeping everything crossed.

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Thunderbolt Pegasus R4 Experience?

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