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Thread: Recommended Hardware RAID

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  1. #1
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    Which card are you talking about ?
    Changing the firmware code that drastically would be a first for LSI.

  2. #2

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    Quote Originally Posted by Gr-R View Post
    Which card are you talking about ?
    Changing the firmware code that drastically would be a first for LSI.
    I am talking about the whole MegaRAID Line, like the MegaRAID 924x, 926x, 927x and 928x RAID Controllers. The new driver MR 5.6 (Linux Version 6.506.00.00-2) is out from Mar 02, 2013 and replacing the MR 5.4 (Linux Version 6.504.01.00-02) from Oct 08, 2012. The funny thing is that you recently released a "new" LSI Driver on April 04, 2013 in your "Engineering Phase" section but is was still the old 6.504.01.00-02 driver from last year....

    So, yes this is drastic code change and the warning is still active....
    Last edited by Alex-Joda; 04-07-2013 at 04:54 PM.

  3. #3

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    I am using a 9271-8iCC and 9266-8i (plus CacheCade). The volumes are recognized, but the performance is unexpectedly slow. Is this related?

  4. #4
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    Oct 2006
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    Quick question, what would the settings ( Read Policy, Cache Policy,Disk Policy, write policy etc..) be for the SSD Cache Virtual disk in open-e and then what would the settings for the other virtual disks that is associated with the SSD Cache virtual disk.

  5. #5
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    recommended for LSI w/BBU

    -write policy: write-back caching
    -read policy: readahead
    -Cache Policy: Cached
    -Disk cache policy: Enabled

  6. #6

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    Quote Originally Posted by Gr-R View Post
    recommended for LSI w/BBU

    -write policy: write-back caching
    -read policy: readahead
    -Cache Policy: Cached
    -Disk cache policy: Enabled
    And no inherent issues with performance?

  7. #7
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    Quote Originally Posted by TheLastDay View Post
    And no inherent issues with performance?
    Shouldn't be, this is preferred settings.

  8. #8
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    Oct 2006
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    Quote Originally Posted by Gr-R View Post
    recommended for LSI w/BBU

    -write policy: write-back caching
    -read policy: readahead
    -Cache Policy: Cached
    -Disk cache policy: Enabled
    So that is even with using SSD Cache on the controller

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