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Thread: Areca 1883i/LP/x/ix Thread

  1. #1
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    Areca 1883i/LP/x/ix Thread

    Finally got the Areca 1883i

    F?rst run with 2x samsung 840pro in raid-0 128k stripe

    Cache, but fun



    Bandwidt alright


    8x Plextor m3p

    Last edited by Nizzen; 03-30-2014 at 05:28 AM.

  2. #2
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    I just got two ARC-1883x and ARC-8026-24 SAS expanders from areca to test. Unfortunately I am seeing very similar bottlenecks to the ARC-1882 I tested before. I think its a limitation of their linux drivers. I am seeing fairly decent (for 30 disks) 3 GB/sec read speeds but I can't break 2 GB/sec write. This is on a raid6 array. Sometime in the next two weeks I will likely be doing a test with the unit in JBOD mode just to verify this isn't some limit due to running in raid6.
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  3. #3
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    Quote Originally Posted by Sandon View Post
    I just got two ARC-1883x and ARC-8026-24 SAS expanders from areca to test. Unfortunately I am seeing very similar bottlenecks to the ARC-1882 I tested before. I think its a limitation of their linux drivers. I am seeing fairly decent (for 30 disks) 3 GB/sec read speeds but I can't break 2 GB/sec write. This is on a raid6 array. Sometime in the next two weeks I will likely be doing a test with the unit in JBOD mode just to verify this isn't some limit due to running in raid6.
    I think you need the new ARC-8028 12Gbit expander

  4. #4
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    Quote Originally Posted by Nizzen View Post
    I think you need the new ARC-8028 12Gbit expander
    I Typo'd the model. It is the new 12 GB one (ARC-8028). I even used their feature to enable 12G link speed with 6 GB disks and verified via the serial interface they are 12G bit it made no performance difference. Maybe their linux drivers are just broken. I don't know...
    Supermicro SC846 Case
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    ARC-1280ML raid controller
    24x2TB Hitachi SATA (raid6)
    ARC-1880x raid controller
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  5. #5
    Registered User UObean's Avatar
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    Something I've always noticed about the Areca cards is that 4K with QD32 and above doesn't seem to scale as well as LSI w/ fastpath or even onboard Intel. Not much of a concern for me in real world usage, but its still interesting. The rest of the numbers just destroy my current setup. Will probably end up selling my Intel card and upgrading. Although I might wait for the 1883ix release. 8GB of cache sounds awesome.

    Any chance we could get some Anvil runs with 4GB+ test size?
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  6. #6
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    Quote Originally Posted by UObean View Post
    Something I've always noticed about the Areca cards is that 4K with QD32 and above doesn't seem to scale as well as LSI w/ fastpath or even onboard Intel. Not much of a concern for me in real world usage, but its still interesting. The rest of the numbers just destroy my current setup. Will probably end up selling my Intel card and upgrading. Although I might wait for the 1883ix release. 8GB of cache sounds awesome.

    Any chance we could get some Anvil runs with 4GB+ test size?
    2x 840pro R0

    12GB testsize



    8x plextor m3p R0 later. Have to change :p

  7. #7
    Registered User UObean's Avatar
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    The write test for 4k QD16 was cut off. That being said, the low queue depth numbers destroy my setup.

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  8. #8
    Uber Raid King Computurd's Avatar
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    I have been testing with some HGST 12Gb/s SSDs and have also ran into scaling issues, but on a windows 2012 platform. A real headscratcher , i cant seem to break over 70K IOPS! Im sure its something stupid i am doing.
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  9. #9
    Xtreme X.I.P. knopflerbruce's Avatar
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    Found this... but if it's real or not ("delivery in 72h") is another question.

    http://www.google.com/translate?hl=e...1883ix-24.html

    Here's a decent picture of the 1883ix:

    http://news.cens.com/cens/html/en/pr...in_141863.html
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  10. #10
    Registered User UObean's Avatar
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    I got tired of waiting for the 1883ix. Newegg had an open box 1883i for $500 so I decided to go for it. I figure if I really need to have the 1883ix in a few months I can just sell this card on ebay. Computurd, did you ever figure out your scaling issues?
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  11. #11
    Xtreme X.I.P. knopflerbruce's Avatar
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    I got tired, too... but I grabbed an 1882ix w/4GB cache on ebay
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  12. #12
    Registered User UObean's Avatar
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    Still testing with this card, but as previously noted, the higher queue depth results don't scale at all with this card. Here are Anvil results with 4 drives vs 8 drives. Besides the sequential numbers, basically nothing scales.



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  13. #13
    Uber Raid King Computurd's Avatar
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    There is a problem with their drivers, which they are working to resolve.
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  14. #14
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    Quote Originally Posted by Computurd View Post
    There is a problem with their drivers, which they are working to resolve.
    Nice to see you again back in business

    There is a new firmware:

    1.52 2014/7/21

    Maybe is solves something :p

    I just updated mine, but i did not testet yet in benchmarks

  15. #15
    Registered User UObean's Avatar
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    Quote Originally Posted by Nizzen View Post
    Nice to see you again back in business

    There is a new firmware:

    1.52 2014/7/21

    Maybe is solves something :p

    I just updated mine, but i did not testet yet in benchmarks
    Yeah I'm on the latest firmware and drivers, no change.

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