Write-cache policy on Shadow Defender

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

  1. Mister X

    Mister X Registered Member

    Joined:
    Aug 10, 2013
    Posts:
    2,941
    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:
    19,313
    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. Mister X

    Mister X Registered Member

    Joined:
    Aug 10, 2013
    Posts:
    2,941
    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:
    19,313
    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:
    3,100
    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:
    3,100
    Yes, if Shadow Defender is running you don't really need to worry about file corruption.
     
  7. Mister X

    Mister X Registered Member

    Joined:
    Aug 10, 2013
    Posts:
    2,941
    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
Loading...