You cannot compare the results of one test like AJA to a different test like BlackMagic or QuickBench.Į.g, on my 8TB P1 R4 with 4x2TB Toshiba drives in RAID 5, QuickBench Large gives a read rate of 830MB/sec, yet the AJA "Read Existing File" test on a 5GB file only gives about 430MB/sec - on the exact same hardware, run within 60 sec of each other. Sometimes it's unclear what the user-adjustable parameters even do.Įven running the same test on different machines means nothing unless that test is configured identically on both machines. So besides the parameters you typically cannot change (such as # of async I/Os and I/O size) there may be user-adjustable parameters you *can* change, such as file size. Oftentimes tests (such as AJA) have many different configuration parameters. This makes it difficult for users to compare disk benchmarks - you have to run the exact same test, configured the same way. They can vary in number of threads used, I/O size, number of overlapped (async) I/Os, what caching request flags the API submits, etc. The fact that each different benchmark program often produces radically different numbers on the same hardware indicates the source of variability.
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As for those of us with a Windows computer or an older Mac, well, we'll have to wait for the next device or until we upgrade our computers.įor more information on how really fast the drive is, check out CNET's full review of Promise's Pegasus R6 Thunderbolt drive.This more likely reflects the characteristics of AJA System Test, not the P2 R4 capability. For most owners of Thunderbolt-enabled Macs, the Pegasus R6 is still a very good device to consider but for now they should probably sit tight and wait till the price goes down. If you are one of them, be aware that you might not be able to take full advantage of the device's speed-that's how fast it is!-as there aren't any computers on the market that offer the same level of storage performance. That said, the Pegasus R6 is still an excellent device for those who want to get the most data performance and have the funds to pay for it. To add to the insult, the device doesn't include the necessary Thunderbolt cable, which you'll have to spend another $49 for. The Pegasus R6 costs around $1,500 for the 6TB version or $2,000 for the 12TB version, making it one of the most expensive direct-attached external-drive storage devices on the market.
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Owners of a Mac Pro, for example, could get one to use via FireWire or eSATA for now, before upgrading to a Thunderbolt-enabled Mac later. If Promise would include just a USB, FireWire, or eSATA port with the Pegasus, it would make the device compatible with the rest of the existing Macs and even PCs, and hence increase its value tremendously. This is because it doesn't come with any other connection types. The first is that, as a storage device, the drive works only with Thunderbolt-enabled Macs, which includes the latest releases of the MacBook Pro, iMac, MacBook Air, and Mac Mini. Showcasing Intel's revolutionary Thunderbolt 2 connectivity, the Pegasus2 boasts a staggering speed of 20Gb/s - more than enough to effortlessly handle and accelerate any 3D or 4K (Ultra-HD) workflow environment. Unfortunately, there are quite a few other things you can complain about. The Pegasus2 is the fastest and the only Thunderbolt 2 enabled hardware RAID storage available in the market. We did try two Pegasus R6es together and witnessed no drop-off in performance. On top of that the drive is good-looking and, per the Thunderbolt standard, can be daisy-chained with five others without reducing the bandwidth. In other words, nobody can complain about the drive's performance. This means that in some parts of our testing, it was the test machine itself that imposed the bottleneck of the data connection. You can even call it too fast, as it's much faster than our test machine's internal drive, which is already one of the fastest internal storage devices on the market: a SATA 3 (6Gbps)-based solid-state drive.
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However, the hardest part was not the logistics but how to rate the drive.Īs Thunderbolt currently offers 10Gbps bandwidth (about 1.2GBps), the Pegasus R6 is by far the fastest storage device we've ever seen. For one thing, as it's the first storage device with Thunderbolt, we needed to think of a new set of tests for it while still comparing it with existing storage devices in a way that makes sense. It's a storage device like no other.Īnd it was hard to review it. If you're looking for a storage device that only a few deserving computers can handle, Promise Technology's Thunderbolt-enabled Pegasus R6 external hard drive is for you. The first Thunderbolt-enabled storage device, the Pegasus R6 from Promise Technology.
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