Jump to content
Piriform Community Forums
Sign in to follow this  
Asphyxium

SSD Optimization

Recommended Posts

Hello.  My understanding of the optimization in defraggler for SSD's is that it executes what the TRIM function does across the whole drive.

 

What I need to know is does it affect areas of the disk already taken care of by a drive's built-in trim function?  I am concerned that it is affecting areas of the drive already optimized by TRIM and that I am depleting the lifespan of the hardware.

 

Thank you.

Share this post


Link to post
Share on other sites

It probably has no, or very little, effect on the lifespan of the device. A retrim (which is what an SSD optimise is) will issue the same TRIM command to pages already trimmed, as NTFS - which issues the TRIM and retrim commands - has no knowledge of what pages have already been trimmed.

I would imagine that the SSD controller would recognise that a page has already been trimmed and ignore the retrim command for that page. A cluster which has had a successful TRIM executed against it does not have a physical page allocated to it so it's difficult to see how it could be trimmed a second time.

I've used the words probably and imagine as nobody here knows how the propietary software in SSD controllers works at this level of detail.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×