SSD's and defrag

bobblebob

I know you arent meant to run defrag on an SSD and instead Windows 10 will run TRIM as needed, but ive just looked in the defrag menu and its saying that my SSD defrag was last run 28 days ago and "needs optimisation". Should i just ignore that? Or is that telling me last time TRIM was run? Its down to run weekly automatically

Looking at the defrag task in Task Scheduler it says it was last run 7 days ago, so i assume that is the TRIM command?

unforeseen

Ignore it. SSDs don't need to be defragged

mluton

Its telling you its ran a TRIM

bobblebob

unforeseen said:

Ignore it. SSDs don't need to be defragged

Cheers. You would think if Windows is clever enough to know you have an SSD, it would disable the option for a defrag (or stop reporting that it needs defraging)

Neil_Jones

Trim and Defrag are not the same thing.

Defrag = art of rearranging fragments of files to maximise file access by in a nutshell putting them all together on the drive.  Useful on mechanical drives as it reduces seeking, but this isn't an issue on SSDs.

Trim - A trim command allows an operating system to inform a solid-state drive (SSD) which blocks of data are no longer considered in use and can be wiped internally.   Trimming enables the SSD to more efficiently handle garbage collection, which would otherwise slow future write operations to the involved blocks.

If you do run defrag on SSD by accident or otherwise it's not an issue.  It won't hurt as a one-off.  Windows knows its an SSD but uses the same terminology as for mechanical drives.  Don't worry about it.

almillar

Yes, Windows 10 doesn't talk about defragmentation any more - it talks about optimisitation. That means TRIM-ing for SSDs and Defragmenting for hard disk drives. You should allow Windows to 'optimise' your drive, whatever it is. If you want to make sure Windows knows it's running on an SSD, search the net for 'is TRIM enabled' or similar.