Write-cache policy on Shadow Defender

Discussion in 'sandboxing & virtualization' started by Mr.X, Jul 12, 2017.

  1. Mr.X

    Mr.X Registered Member

    Joined:
    Aug 10, 2013
    Posts:
    3,323
    Location:
    Mexico
    Reading here and there I stumbled upon an interesting and controversial setting which is now in my sight.

    write-cache.png

    As I'm always going after performance and SSD optimization to reduce wear, wonder if it's kind of safe to enable it or "Turn off Windows cache-write buffer flushing on device".

    Some say it's not safe for various reasons, among others, a power surge or brownouts/blackouts can lead to drive corruption leading to Windows re-install, etc., others says it's fine for SSD users.
     
    Last edited: Jul 12, 2017
  2. Peter2150

    Peter2150 Global Moderator

    Joined:
    Sep 20, 2003
    Posts:
    19,983
    Hi Mister X

    I played with the write cache and honestly couldn't see the extra benefit. The power failure isn't a concern as my system have UPS backups, and I have a good 10 minutes warning.
     
  3. Mr.X

    Mr.X Registered Member

    Joined:
    Aug 10, 2013
    Posts:
    3,323
    Location:
    Mexico
    Thanks @Peter2150

    Alright. No extra benefit on performance, granted. Still wondering about SSD wear. Guess I don't need that feature as Shadow Defender protects my system partition of any sort of corruption.
     
  4. Peter2150

    Peter2150 Global Moderator

    Joined:
    Sep 20, 2003
    Posts:
    19,983
    You know it's funny. Up until now, Velocity Micro has advised me to stick with HDD's because of all the back ups I do. But I think Mr Froggie put it in perspective. Since most quality SSD's now have a performance lifetime of almost 20yrs, even if what I do reduces it's life by 30%, do I really care. Good point.
     
  5. mood

    mood Updates Team

    Joined:
    Oct 27, 2012
    Posts:
    7,209
    If write caching is enabled, the writing of data is "delayed":
    It may result in loss of data:
    If write caching is enabled, an UPS can help (power outage), but not in the case of a physical hardware failure or an OS crash.
     
  6. mood

    mood Updates Team

    Joined:
    Oct 27, 2012
    Posts:
    7,209
    Yes, if Shadow Defender is running you don't really need to worry about file corruption.
     
  7. Mr.X

    Mr.X Registered Member

    Joined:
    Aug 10, 2013
    Posts:
    3,323
    Location:
    Mexico
    Thanks @mood

    You're describing what that setting actually does. But how's related to my initial question?

    Edit: Saw your reply right now! As I figured out.
     
    Last edited: Jul 12, 2017
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.