Promise pegasus r4 speed test archive#
Promise pegasus r4 speed test mac#

You can daisy chain up to 6 Thunderbolt devices. As you can see below, Thunderbolt offers 2 channels of 10 Gbit/s bidirectional throughput and has significantly higher throughput than many of the existing protocols. Having just one cable (interface) that can do all this is truly remarkable, but the real power of Thunderbolt is its speed. A number of new Thunderbolt devices are now starting to come to market, Thunderbolt hard drives and RAIDs, hubs and video breakout boxes. You can daisy chain from one Thunderbolt device to up to 6 other Thunderbolt devices, and Thunderbolt cables are 'hot swappable'. Using a new type of cable, about the thickness of a pencil, it carries, USB 2, FireWire, Ethernet, supports high-resolution displays for up to 2 Apple Thunderbolt displays and connectivity to Thunderbolt drives. Thunderbolt is a new interface for connecting peripheral devices to the Mac. The new iMacs (MBP, Air and MacMinis) now come equipped with a new technology from Intel called Thunderbolt. The issue of video backup is not addressed either, so additional FW drives are needed for archiving video media. And even with three FW drives, read and write speeds is a huge issue for todays new demanding video formats. I have never been able to daisy chain more than three FW hard drives together. True, you can daisy chain a number of external FireWire hard drives, but even this is problematic. You can not add internal hard drives and the iMac has only one FireWire 800 port. It is a pretty powerful desktop, there is lot to like, but it does have one major shortcoming. Rather than go with a new MacPro, I decided to go with a new Thunderbolt iMac 27', with 2 gigs of ram on the monitor card, a i7 processor and 16 gigs of ram.

One of my NLE MacPro computers was over 6 years old and it was time to replace it. The days of running our video from single hard drives, either internal or external FireWire drives is passing. The demands for video storage space and the need for much faster throughput from our hard drives has skyrocketed. But all this high quality HD video comes at a cost. The newest format is 4k, which is even more demanding of storage and drive speed. A number of these new formats also carry additional color information and at greater bit depth, yielding significantly higher quality video output. Instead of 720 x 480 SD video we now work with 1280 x 7 x 1080 formats (and larger). In the beginning we worked with Standard Definition 4:3 video, but now 16:9 HD video is the standard. However, over the past 11 years, the video codecs and formats have changed dramatically. In the early years many of us were working with DV, NTSC and PAL, which is heavily compressed to have a very low data rate of 3.5 MB/s (25 Mbit/s), and does run well from Internal and Firewire drives. You should see my work stations I have hard drives all over the place.

Promise pegasus r4 speed test archive#

Because internal and FireWire hard drives can and will fail at some point, more drives were needed to back up and archive all of my primary hard drives. To supplement my internal hard drives I have purchased a large number of external FireWire hard drives, first FW 400 and then FW 800. As you know, video not only takes up a lot of space but the amount of footage accumulates over the years, consuming more and more hard drives. I have always filled my Macs with as many hard drives as they can hold. Starting with the G3 and finishing up 11 years later with MacPros.

Promise pegasus r4 speed test mac#

Since FCP first shipped, I have been running it on Mac Desktops. Warranty: Two years with a one-year limited warranty on fan and power adapter. Review: Promise Pegasus RAID - Thunderbolt