Is it necessary to align an SSD after cloning?

Discussion in 'SSDs & Data Storage' started by Rob94hawk, Aug 10, 2018 at 3:52 AM.

  1. Rob94hawk

    Rob94hawk [H]ard|Gawd

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    I just cloned my old 320 GB 5400 rpm HDD to a 480 GB SSD. The HDD was failing & had bad sectors so I used two different programs to clone the HDD to the SSD. I only did this because Macrium refused to clone C: but not the other partitions. Then I used AOMEI to clone C: cause it was the only program that would clone a corrupt HDD.

    To make a long story short, the new SSD works just fine. The question is, do I need to align it now? Thanks.
     
  2. faugusztin

    faugusztin 2[H]4U

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    What OS made the partition on the original drive ?
    Windows XP or a random software = yes, you need to align it to 4k boundary, because otherwise every write operation must clear 2 cells and write 2 cells.
    Windows Vista and newer = partitions are alligned by default.

    Check your alignment using one of these steps : http://www.ccboot.com/how-to-check-whether-the-hdd-is-4k-aligned.htm
     
  3. Rob94hawk

    Rob94hawk [H]ard|Gawd

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    Windows 7
     
  4. faugusztin

    faugusztin 2[H]4U

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    If Windows 7 made the partition, then it should be alligned by default. You can still check according the guide, just to be sure.
     
  5. Rob94hawk

    Rob94hawk [H]ard|Gawd

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    Your link is for a HDD. Don't know if it makes a difference or not. But I found this link, which is what I did.

    https://www.howtogeek.com/270358/ho...id-state-drive-by-re-aligning-its-partitions/

    And according to this link my partitions, which are divisible by 4096, are aligned so that solves that.
     
    Last edited: Aug 10, 2018 at 8:36 AM
  6. faugusztin

    faugusztin 2[H]4U

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    HDD or SSD makes no difference from OS side. Only difference is TRIM support, which has nothing to do with partition alignment.
     
  7. ncjoe

    ncjoe Limp Gawd

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  8. Rob94hawk

    Rob94hawk [H]ard|Gawd

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  9. PliotronX

    PliotronX [H]ard|Gawd

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    As a quick check, IIRC the starting offset needs to be divisible by 4096:

    AOjNX3j.png
     
  10. Luke M

    Luke M Limp Gawd

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    I don't recall ever reading anything about alignment from the SSD manufacturers. But it wouldn't surprise me if an SSD worked better with at least 4K alignment. That's been standard practice since Vista.
     
  11. daglesj

    daglesj [H]ardness Supreme

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    I used to pay attention to it a lot in the 'olden days' but 99.99% of software/OS/systems nowadays appear to just take care of it.