Is quite useful to quickly get your answers and guides. Now I know what can I do with these drives and what I can’t. This can prove that a USB3 RAID0 is really possible and even decisive when your purpose is to edit video.Īll the tests were performed using a 5GB load, the RAID was created with a 256K chunk size (since this is for video a large chunk size is needed) As most filmmakers know, hard drive speed has a lot to do with how long a download will take. And as the math implies, with RAID 0 and 2 drives you should get double the speed (varying on conditions and chunk size right?) Happily this happened and I measured around 370MB/s (2.96Gbps). There have been a variety of hard drive speed tests around forever. Then, my MBP SSD measured the nice speed of 640MB/s - But that’s an internal SSD, quite utopic isn’t it?Īfter creating the RAID 0 using two P’9233 drives, I measured it again. Once the program is downloaded, open it and click Speed Test Start. Where all my drives measured their “top” speed at around 75MB/s write. Search for Blackmagic and click the download button next to the Disk Speed Test result. I also noticed that using a Kanex Thunderbolt Adapter to USB3.0 kinda stabilizes the drive, operating at its full speed. This drive is a desktop one, my other portable USB3.0 Drives (WD Elements, Porsche P’9220, etc.) gave me a poor measurement of 20-70 MB/s on write, being the LaCie (P’9220) the fastest with 76.4 MB/s and 26MB/s the slowest (WD Elements). (This translates to 1.4 Gb/s, where is USB3 spec of 3/5Gbps?) They are operating on the board controller and for most use is quite enough. I tested them alone, giving me 180 / 190 MB/s for Write/Read respectively. I created the RAID using two LaCie Porsche P’9233 3TB Drives. You can download it from the link provided on this page and follow the installation instructions. It is a freeware developed by Blackmagic Design Inc. The answer?… wow! - Very useful to prove theory. Blackmagic Disk Speed Test is a tool for checking the performance of a hard drive. I was wondering if a USB3 RAID 0 would give any improvements and if it would really be worth it or of any use creating a RAID on USB3.0 on a MBPr (Late-2013, Qi7/16/SSD).įound some stuff on internet and then this one. It uses the Windows Explorer or macOS Finder to copy a 1.23GB test folder full of several different file types. You can easily detect when a device is performing subpar and, and with the spinning disk, you can see is transfer speeds deteriorates over time.I spent quite some time trying to think about the proper configuration for my Hard Drives. The final test for external drives is a drag-and-drop test. I have run Blackmagic on USB 2, thumb drives, USB 3, and USB C devices to see if I’m getting my money’s worth. On an older PC the rates I see are 500 MB/S both read and write, as you would expect. I have tried this on my older mackbooks with SSD and they do scale down as the device is older. On my 2016 PC, I am seeing speeds like 1,000+ MB/s write, and 1100+ MB/S read. Since the “volume” is on your Startup Disk, you will see how fast it drive is. In Blackmagic select the disk image mounted. Mount the volume (if it is not already mounted). Make it big enough for Blackmagic to work with (7+ GB) and name it what you will. Create a disk image (.dmg) using the disk utility specifying file->new image->blank image. I found a workaround that will report the rates of the Startup Disk. When Blackmagic tries to read the Startup Disk, you get the message that the device is not writeable, hence you cannot rate the the transfer rates of the drive. Determining the speed of a hard-disk is more like a job addressed to beginners, but Disk Speed Test promises to make everything a lot easier even for. Blackmagic has been updated to adequately report the speed of SSD devices.
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