I purchased the Pegasus2 R6 to use with a new Mac Pro (late 2013) for editing 4K video. This drive comes preconfigured as a Raid 5 properly formatted for the Mac. After hooking up the Pegasus2 it automatically begins synchronizations which, for this 18TB array, required about 8 hours. The Raid 5 system is then ready for use. I found the expected high data transfer rates of about 720 MB/sec for this raid system. The Pegasus2 is very quiet in operation producing only a small amount of noise as the disks spin up. During writing to or reading from the array, the system is virtually inaudible. The Pegasus2 can be configured and controlled from the Promise Utility that comes installed on the array. This utility has an excellent interface that allows the user to address every aspect of array operation including the sophisticated power management features of The Pegasus2. The only issue that I had upon first using the Pegasus was that the hard drives were spinning down frequently when not being used for a few minutes. This caused a delay of about 10-15 seconds for the hard drives to spin up when they were addressed. I was able to correct this via commands provided by Promise and entered via Terminal commands directly to the CLI interface elf the Pegasus2. I have been told by Promise that the next version of the Promise Utility will allow this to be done completely from within the utility without the need to use a command line interface. I believe the Pegasus2 R6 is a perfect companion to the new Mac Pro for editing 4K video and other purposes where high data transfer speeds and large disk capacity are required.

What a pleasant result, faster and bigger. I'd do it again tomorrow

Owned this for a few months now (purchased it with my Mac Pro), and it is incredibly fast. I have it set up in a RAID 5 config, so I imagine it would be even a bit quicker at RAID 0. It was essentially plug and play...the setup wizard in the software created the RAID 5 config in seconds. Using blackmagic, it consistently tests at just over 1200 MB/s. I use it as my primary drive to house pictures and video...including my Lightroom library. All of my PS editing takes place on files located on this drive. So far, not a single hiccup when accessing this drive from either LR or PS. It clones once a night to a second P2 R6...that process is screaming fast. Even after a day of uploading 100 Gigs, this thing backs up in seconds. Incredible. It has performed every bit as well as I hoped and expected. It's expensive for the average hobbyist...but for a pro photographer who can afford it, the P2 R6 will help streamline your post processing efficiency.

Easy set up although it takes many (7 or 8) hours to first synchronize. Extremely fast. I use it for storing and editing media (hobbyist). Very quiet.