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21Dec/116

Caution with Promise Pegasus Thunderbolt RAID 6x3TB (18TB) or 6x4TB (24TB) modification. 6x5TB (30TB) possible as of January 2012?

Nanofunk reported on a possible modification of the Promise Pegasus Thunderbolt RAID to host 6x3TB Hard Drives for a total of 18TB storage back in July 2011. While we did not have any issues with Hitachi Deskstar 3 0F12450 and Western Digital 3 TB SATA II Intellipower 64 MB Drives, other people repeatedly reported issues and even failures when the drives hold more than 11TB of data.

Currently, with the announcement of the Hitachi Deskstar 7K4000 4000GB, SATA 6Gb/s (0F14681) and the 4TB Deskstar 5K4000 as well as the 4TB Seagate Barracuda XT 7200RPM a total of 24TB could be reached when modding the Promise Pegasus just replacing the 2TB drives it comes with.

Tomshardware even reported on 5TB HDDs arriving in January 2012, so a modification to fit 30TB into the Promise Pegasus would be possible theoretically.

While all the drives are not available at the current time of writing of this article, please do consult the Promise Support if you are planning to do modifications or already did! Judging from the current feedback on modifications, updating the Promise Pegasus before an official answer or statement from Promise Technology is NOT RECOMMENDED!

Please send emails to Promise directly and ask them to react on the current limitations. I already did so - still waiting for response.

Related posts:

  1. Promise Pegasus Thunderbolt RAID system for high-speed data demands: 6x3TB for a total of 18TB (mod)
  2. Intel teases Thunderbolt I/O port for Windows PCs … and for Hackintosh
  3. OCZ Vertex 3 Fail: “Runtime corruption detected on SSD” and why SSD drives are not safe yet.
  4. 2011 Macbook Pro and SATA III 6Gbps, Optibay: two HD drives – setup explained
  5. Panasonic GH2 Driftwood/Vitaly Patches 176Mbps AVCHD Intra up to 244Mbps Intra: A poor man’s RED?
  6. Should I use Trim Enabler on Lion for the OCZ Vertex (3)? No! (Benchmarks inside)
  7. Install OS X 10.7 Lion on any Supported Intel Core 2 or Core i based PC & Make an OSX Lion Boot Disc
  8. Installing Mac OSX Lion 10.7 on any Core 2 or Core i based PC (Hackintosh) with xMove or HOTiSO
  9. hackintosh: XPC Bootloader Can Boot Mac OS X 10.7 Lion
  10. Mac OSX Lion 10.7 System Freezes: kernel: IOSurface: buffer allocation size is zero (console message)


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DIY DSLR Video Setup: equipment, tools and gear to complete your setup.

This post was written by on December 21, 2011 and last edited on December 23, 2011
Post categories: apple, beta, community, diy, examples, experimental, gadgets, hardware, howto, installation, news, online, opinions, osx, prototyping, rumors, thunderbolt, tweaking, update
Permalink: http://nanofunk.net/caution-with-promise-pegasus-thunderbolt-raid-6x3tb-18tb-or-6x4tb-24tb-modification-6x5tb-30tb-possible-as-of-january-2012/

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Comments (6) Trackbacks (0)
  1. Johnny C
    January 5th, 2012 - 17:23

    I updated the drives to 4TB samples I had in my Promise Pegasus R6… wow, it screamed and had a lot of capacity… until I left the unit all night and all my data was destroyed, the RAID Groups disappeared and I had a bunch of blinking lights on the box! Don’t do it!

  2. Broken Promise(s)
    April 21st, 2012 - 01:27

    Yeah, B&H sells the 4TB drives in a ‘kit’ but when ask Promise about it, they say they don’t know anything about it. Then they say it’s not supported, but B&H says it’s fine.

    Very disappointed that B&H would sell a ‘kit’ that doesn’t have manufacturer support (and that they won’s support).

    Very expensive solution – without support = fail.

  3. Ulisses
    May 7th, 2012 - 15:56

    Do you guys tested the latest firmware? Is it worked?

  4. nanofunk
    May 8th, 2012 - 11:40

    can you give us some more hints on the new firmware? does it support 3TB and 4TB drives?

  5. Ulisses
    May 21st, 2012 - 22:44

    Any news? Do guys tested the 6x 3TB or 6x 4TB layout using the new pegasus firmware?Is it worked? Please update us!!
    Thanks.

  6. mikey
    September 28th, 2012 - 04:57

    ^as above: any news on 4TB in the R6?^

    (Apple sell directly the 6x3TB unit for $3K now, but why no 6x4TB? Link below)
    http://store.apple.com/us/product/HA017VC/A/


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