Horrible SSD write speeds... not sure how to fix this :(

Discussion in 'Memory and Storage' started by k1114, May 13, 2012.

  1. k1114

    k1114 Golden Member

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    The drive is a SV100S264G that I've had for less than a year. It's been run under Win 7 64 bit the whole time, and it's always been a bit slow, but about a month ago it started to get REALLY bad; stuttering and freezing all the time. I've seen a lot of people complaining about "bad" write speeds that are over 100mb/s. THIS is a bad write speed result:

    [​IMG]

    edit: No screenshot, but SSDLife guesses 65% life left

    * TRIM support is on
    * ACHI is on
    * All drivers are up to date
    * APM setting is fine
    * Roughly the same results with and without write caching on
    * Checked alignment; no problem there

    What should I check next? I'm lost.
     
    #1 k1114, May 13, 2012
    Last edited: May 13, 2012
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  3. Coup27

    Coup27 Platinum Member

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    How much of a job is it to SE and start again?
     
  4. k1114

    k1114 Golden Member

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    I run storage server 08 in the rack upstairs so I have full drive backups; can reimage in about 30 minutes from it

    edit: f it, I'm gonna do that
     
  5. Coup27

    Coup27 Platinum Member

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    If the image was taken long before it went tits up, then go for it.
     
  6. groberts101

    groberts101 Golden Member

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    Secure erase is the key to make sure the drive is completely fresh again. And a nice clean image never hurts either.
     
  7. k1114

    k1114 Golden Member

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    I'm just now getting around to doing the reimage right now (about 20 minutes left) using a recent image, and if that is still slow, i'll manually backup all my important files and image fresh to see if it improves.
     
  8. k1114

    k1114 Golden Member

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    So something was wrong with my image; I restored and had the same problem. Installed win7 on my storage drives and wiped the SSD clean again, and here's what it gets:

    [​IMG]

    Gonna reinstall win7 on it fresh tonight.
     
  9. groberts101

    groberts101 Golden Member

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    no.. actually it's likely the other way around there. If you "restored and had the same problem"?.. that indicates that the SSD is low on fresh block reserves and is showing degraded performance(due to read/write/modify) as a result.

    SE will take care of that completely. If you would have SE'd and THEN restored that image?.. you would have eliminated the drives current fresh block reserve state as the culprit and could look directly at the image itself.

    Although it is possibly a driver related issue or some other conflict going on there.

    Simplest test is this. Boot to another OS volume and test that SSD as a spare. Then SE and retest as spare once more. That will spell it out clearly. Good luck with it all
     
  10. k1114

    k1114 Golden Member

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    I did SE before the reimage
     
  11. sm625

    sm625 Diamond Member

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    Well that is strange...
     
  12. UFCwhore

    UFCwhore Junior Member

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  13. sub.mesa

    sub.mesa Senior member

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    The SV100S264G appears to be powered by a low-end controller chip: the JMicron JMF616. This must be one of the lowest quality SSDs available. The random I/O benchmarks are very low, performance degradation can be very high, there probably is abysmal protection against corruption and more of these kind of issues.

    So I would never recommend buying one. But now that you have one, you can continue to use it for light systems. Just do not make the same mistake again and buy a quality SSD in the future for a little bit more money. This will buy you much more quality and is very much worth the extra pocket change.
     
  14. KingFatty

    KingFatty Diamond Member

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    Was the drive nearly completely full with little free space?

    The original bad write performance was so bad that I think it's beyond explanation if you only consider the type of controller chip alone - surely the performance indicated something was very wrong, not just that it's a low performance SSD?

    Please let us know your progress and if you can figure out what it might have been to get such low performance.
     
  15. rsutoratosu

    rsutoratosu Platinum Member

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    That drive's specs are

    Sustained Sequential Read
    up to 250MB/s
    Sustained Sequential Write
    up to 145MB/s


    You're pretty close to it
     
  16. tweakboy

    tweakboy Diamond Member

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    NOPE! You dont have to do jack, maybe depends on the vendor. I know I can slap on a re image from external to SSD and booting off I go. No aligning bs. plus I use 512k sector size haha, which gives me 550mbps heheh.
     
  17. k1114

    k1114 Golden Member

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    I guess i'll do a follow-up since this thread got revived somehow. The drive continued to exhibit similar problems shortly after a fresh re-image. Did a RMA and the new drive was just fine.