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Thread: Open Boot Challenge 2009

  1. #101
    Who am I? HiJackZX1's Avatar
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    Quote Originally Posted by SFiorito View Post
    Win7 supports TRIM, but wear leveling needs to be in the SSD controller.
    Everyone is telling me that but how long will the drives stay alive? I have to assume its at least 5 years. I will mainly be reading, not writing, unless Win 7 is constantly writing for no reason.
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  2. #102
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    Quote Originally Posted by Tidder View Post
    If it's built onto the motherboard and the motherboard isn't a big expensive server board, chances are it's software/fake RAID.
    That was true a couple of years ago but most higher end desktop boards have hardware raid.

    As far as life... it really won't die like a conventional hard drive. As the sectors die the drive just gets smaller and smaller.

  3. #103
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    Quote Originally Posted by justchat_1 View Post
    That was true a couple of years ago but most higher end desktop boards have hardware raid.

    As far as life... it really won't die like a conventional hard drive. As the sectors die the drive just gets smaller and smaller.
    OK.... That makes sense. Thanx for clearing that up.

    *Prays I have hardware Raid 0*
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  4. #104
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    Quote Originally Posted by justchat_1 View Post
    That was true a couple of years ago but most higher end desktop boards have hardware raid.
    I highly doubt that. Being that real hardware raid requires it's own processor and it's own ram, I don't think so.

    Even on higher end boards, it's still software/fake RAID. You show me links and I'll change my tune.

    EDIT: Just to clarify. The hardware has to support RAID, yes. But most motherboards that sport RAID, all the actual RAID function is performed by software.

    Example. This motherboard "supports" RAID. http://www.newegg.com/Product/Produc...82E16813130223 However when I needed to replace a drive and rebuild the array, I could not do it from the RAID controller's menu. It had to all be done in software after windows booted, and I noticed a constant usage of about 20% of the CPU when it was rebuilding the mirror. A real RAID wouldn't do that. Yes, the RAID would still run slow until the rebuild was done, but it wouldn't be a processor intensive process since a real RAID controller has it's own CPU to handle things like that.
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  5. #105
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    Quote Originally Posted by Tidder View Post
    I highly doubt that. Being that real hardware raid requires it's own processor and it's own ram, I don't think so.

    Even on higher end boards, it's still software/fake RAID. You show me links and I'll change my tune.

    EDIT: Just to clarify. The hardware has to support RAID, yes. But most motherboards that sport RAID, all the actual RAID function is performed by software.

    Example. This motherboard "supports" RAID. http://www.newegg.com/Product/Produc...82E16813130223 However when I needed to replace a drive and rebuild the array, I could not do it from the RAID controller's menu. It had to all be done in software after windows booted, and I noticed a constant usage of about 20% of the CPU when it was rebuilding the mirror. A real RAID wouldn't do that. Yes, the RAID would still run slow until the rebuild was done, but it wouldn't be a processor intensive process since a real RAID controller has it's own CPU to handle things like that.
    It's handled by the chipset on the mobo exactly like a standalone raid controller. A "CPU" is a huge over-generalization.
    The hardware may not be full featured in that you need standalone software to rebuild the array (not with of of my boards) but it is true hardware raid in that there will be no additional CPU overhead when in use.

  6. #106
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    I was looking online and it turns out there is three types of RAID controllers. Software, Hybrid, and Hardware.

    My guess is maybe MoBo manufacturers are using the Hybrid version.

    Here is a PDF on how they work. http://www.adaptec.com/NR/rdonlyres/..._HWRAID_10.pdf
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  7. #107
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    Quote Originally Posted by ZX1Cruizer View Post
    I was looking online and it turns out there is three types of RAID controllers. Software, Hybrid, and Hardware.

    My guess is maybe MoBo manufacturers are using the Hybrid version.

    Here is a PDF on how they work. http://www.adaptec.com/NR/rdonlyres/..._HWRAID_10.pdf
    Hybrid raid is commonly known as firmware based raid...its software raid with a bootloader basically. This was used on the very cheap raid controllers and on a few generations of intel chipsets...but really not much anymore.

  8. #108
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    Quote Originally Posted by justchat_1 View Post
    Hybrid raid is commonly known as firmware based raid...its software raid with a bootloader basically. This was used on the very cheap raid controllers and on a few generations of intel chipsets...but really not much anymore.
    AHHHH so its basically between Hardware and Software now...... Well I have read that the Zotac is pretty fast with its RAID, but I still dont know which one it is, but it doesnt matter, as long as its fast.
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  9. #109
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    Quote Originally Posted by justchat_1 View Post
    It's handled by the chipset on the mobo exactly like a standalone raid controller. A "CPU" is a huge over-generalization.
    The hardware may not be full featured in that you need standalone software to rebuild the array (not with of of my boards) but it is true hardware raid in that there will be no additional CPU overhead when in use.
    I'm not sure where you are getting this information. Almost every desktop board out there uses fake/software RAID. I know of no chipset that can do RAID functions and act as a RAID micro processor. All of this processing is done by the CPU. It's basically a modified standard hdd controller with extra firmware to handle the initial boot (and yes, some do even allow you to rebuild the array from the firmware). Once the initial boot is done, software/drivers take over and the CPU does ALL the processing for the RAID.

    True hardware RAID does require a stand alone microprocessor to do the work. These do not exist on the majority of desktop boards that offer RAID, even high-end boards.

    I believe you need to read up a bit on Fake Raid, sometimes also called Host Raid. Or, post up some links and school me please.
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  10. #110
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    Cant you call it Host RAID, you keep calling it Fake RAID, which makes me feel cheap, lol. From me reading the only ones that have Hardware RAID are high end Servers.
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