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  1. #1
    Senior Member JJJJJ's Avatar
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    Default just being careful

    I have 2 SSD disks running in RAID 0.
    Can I defrag them without losing everything?

    I know you shouldn't defrag ssd's
    Jack GOF.

  2. #2
    amateur expert dugimodo's Avatar
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    Default Re: just being careful

    Yes you can but no you shouldn't. Why would you want to ?

    I'm thinking of getting a 2nd one and raiding them also, just because it's cheaper than getting a bigger one. I was wondering about trim support using RAID myself.
    What I do is have a convential hard disk dedicated to backups and windows scheduled to backup the SSD once a week, makes me feel safe even if I have never used the backup.
    Ryzen 2700X, 16Gb DDR4RAM, 512GB M.2 NVME SSD, MSI GTX1070

  3. #3
    Where is Metla these days Chilling_Silence's Avatar
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    Default Re: just being careful

    Nope, never defrag a SSD.

  4. #4
    Network Engineer SolMiester's Avatar
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    Default Re: just being careful

    DO NOT defrag an SSD period, all you are doing is accelerating the wear which will decrease performance, the only way I know to increase the performance is to image the logical drive, then erase and re-image down....

    If disk performance really is a big issue for you, their are a couple of options.....buy more RAM and create a RAM Drive, or purchase a PCIe Expansion Card with RAM on it...
    HOME-LianLi PC-9F,ASRock P67Pro3, i5 2500k @4Ghz, 8Gb HyperX, ASUS GTX660 OC, Corsair Force 120 SSD, HP zIPS22", HOME SERVER HP ML110G6 HOST-Plex\Ubuntu\8

  5. #5
    Computer "Specialist" Agent_24's Avatar
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    Default Re: just being careful

    Buy a hard drive and then defragment it, instead.
    Non-system disk or disk error. Replace and strike any key when ready.

  6. #6
    Senior Member JJJJJ's Avatar
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    Default Re: just being careful

    I have been useing ssd's ever since they became available. I have always defraged them every three or so months. My computer always seems to run faster after the defrag. May just be my imagination, but they have never caused any problems or damage.
    I notice the warning that says MAY cause this or that. I believe the warning is to protect the manufacturer.
    In my case I'm more concermed with upsetting the RAID.
    Jack GOF.

  7. #7
    Mostly harmless member kingdragonfly's Avatar
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    Default Re: just being careful

    "Being careful" doesn't usually exist in the same neighborhood as "RAID 0"

    Personally I avoid RAID0, because you're doubling the chance of a disk failure destroying all your data.

    The exception is temporary files, browser caches, memory page files, or other non-production temporary files that are always rebuilt on restart. ("TempDB" for SQL server).

    Still to each his own.

  8. #8
    Where is Metla these days Chilling_Silence's Avatar
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    Default Re: just being careful

    Yup, definitely just your imagination.

    Defragging orders the files sequentially, and together, on a drive. Fragmentation occurs when one single file is stored in dozens of places all around the HDD. The "slow down" is the seek times as the head physically moves across the drive to the different locations.

    SSDs are flash-based, they're like a thumb-drive, you don't defrag them. It's a genuine warning, there's no need to do it, and there's definitely no performance increase.
    I mostly do Bitcoin & DigiByte things these days, feel free to say hi on Twitter: https://twitter.com/dgb_chilling

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  9. #9
    Senior Member JJJJJ's Avatar
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    Default Re: just being careful

    I'm not concerned with backups.
    The only reason I use RAID 0 is to boost r/w speed. It doubles their speed. I am told it will double again if a third disk is added.
    Jack GOF.

  10. #10
    Short Member pcuser42's Avatar
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    Default Re: just being careful

    Quote Originally Posted by kingdragonfly View Post
    Personally I avoid RAID0, because you're doubling the chance of a disk failure destroying all your data.
    Exactly. It's a little known fact* that RAID arrays are named after the number of disks they protect in a failure

    *disclaimer: may not be fact
    "He who resorts to personal insults hath lost the argument."

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