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To start with, it has two Thunderbolt3 ports, so you effectively have an in and an out. There are a few other features that I liked about the Promise3 R8.
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Just before I sent it back I did reformat it into RAID 0 just to see what kind of speeds I could get and the tests showed 1189.2 MB/s write and 1304.5MB/s read. This is more than enough to be editing multiple streams of 4K footage at the same time. I am super glad I did, because even with using the safer, slower RAID 5 setup I was getting speeds of 1090.6 MB/s write and 583.1 MB/s read. But I thought before I did that, I should at least test the speed of the unit in RAID 5. I was going to re-configure it into RAID 0 which is the fastest type of RAID, but also the most dangerous as, in that setup, if even one drive fails you then lose everything. This means that one entire drive can fail and you won’t lose any data. My review unit arrived setup in a RAID 5 configuration which means that one of the drives is used for redundant backup. There is also the R6 and R4, the numbers, of course, denoting how many bays each unit has. There are also other models in the thunderbolt range. I got the unit with the smallest storage amount which is 48TB, it also comes in a 60TB and 80TB configuration.
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It has two Thunderbolt connections, which is good as it means you can daisy chain it to more Thunderbolt devices. The Pegasus3 R8 ( Amazon), as the name would suggest, is an eight-bay RAID array that has Thunderbolt 3 connections. So when Promise agreed to loan me one of their Pegasus3 R8 units. It wouldn’t be as fast as using SSDs but it would be fast enough, it would give me far more storage and it would be noticeably cheaper. He suggested that if I got a RAID with five drives or more, being able to use RAID 0 with that many drives would give me the speed I need. I then had a very interesting conversation with an engineer from Seagate at SMPTE. Of course, the problem here is that SSDs that are about 1TB or 2TB are not cheap and then I’d have even less space than I have now… I know it’s not Thunderbolt 3, but Thunderbolt 2 is still plenty fast for most of what we do.įor a while, I was looking at maybe getting two SSD drives to replace the two 3TB drives in the R2+ which I figured would speed things up. I’m pretty sure it’s not the Thunderbolt 2 connection.
PROMISE PEGASUS R4 REPLACEMENT DRIVES MAC
So 6TB isn’t enough space anymore.Įven if it was enough space, I am starting to get beach balls on my Mac when trying to edit footage of the R2+ and so I think it’s also getting too slow for what I am demanding from it. I normally have anywhere from four to six editing projects on at the same time and each of those could be anywhere from 1TB to 3TB. To begin with, the 6TB of storage it provides me is starting to be just a bit too small for my needs. The R2+ has served me well, but, as is the way with tech, it’s starting to show its age.