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Understanding Data written usage on SSD's

Discussion in 'Storage Drives' started by lowrider007, Apr 25, 2018.

  1. lowrider007

    Capodecina

    Joined: Jul 27, 2005

    Posts: 11,288

    Location: The Orion Spur

    I have installed an 850 evo (1TB) today as a secondary drive for games, all I've installed on it is steam, and the Witcher 3 @ 51GB, SSDLife claims I have written 98.6GB? Am I missing something?

    Is this because downloading and installing uses double the data writes?
     
  2. WoodyUK

    Soldato

    Joined: Dec 29, 2009

    Posts: 5,885

    Steam downloads first, then installs/writes to the actual game folder.
     
  3. lowrider007

    Capodecina

    Joined: Jul 27, 2005

    Posts: 11,288

    Location: The Orion Spur

    ah, bugger, I guess I should of just copied the steam folder across from the old harddrive, silly me.
     
  4. WoodyUK

    Soldato

    Joined: Dec 29, 2009

    Posts: 5,885

    It's okay, 98.6GB out of 150,000 GB before your warranty is no good :p
     
  5. andy_mk3

    Soldato

    Joined: Oct 5, 2009

    Posts: 7,215

    Location: Lincolnshire

    Don't worry about writes to your SSD. It'll take hundreds of TB's before it does any damage.
     
  6. BlackAle

    Hitman

    Joined: Nov 4, 2006

    Posts: 764

    Location: Rugeley, Staffordshire

    Don't worry about it, on a 1TB 850 EVO, you'll probably get a 2PB+ endurance.
     
    Last edited: Apr 26, 2018
  7. DarkBahamut

    Gangster

    Joined: Mar 24, 2011

    Posts: 447

    It won't be how steam downloads. It's because of SLC caching. The first X amount is written into an SLC buffer for faster performance, but this causes much high write amplication as that data then later needs to be rewritten out in TLC mode.
     
  8. blueacid

    Hitman

    Joined: May 28, 2007

    Posts: 565

    I wouldn't worry; I've got an old 256GB Samsung 830 in my desktop, which has been there since 2013 or so. I've just used it like normal, with lots of steam games downloaded / updated / patched / reinstalled. Around 15TB written in total, and the health is still absolutely 'good' according to the Samsung magician software.

    I'd say you'll be fine!
     
  9. lowrider007

    Capodecina

    Joined: Jul 27, 2005

    Posts: 11,288

    Location: The Orion Spur

    Interesting, is this unavoidable then? If I write data to the drive I will always write twice the amount of data due to write amplification? I've had a bit of a google but it's a little complicated.