I seen many posts on some website saying the windows update is bugged cozing the ssd to keep defraging. so is this true ?
have it been fixed (i heard only insider got fix so far) ?
how bad is it ? if I keep the settings as it is and let it defrag with this bug ?
Apparently 2004 borked it by causing Windows to âforgetâ that it had defragged/run Trim on drives. So if drive maintenance/optimization is set to automatic it would constantly run these tasks.
I read somewhere that Microsoft does do some amount of defrag even on SSDs. Files with ridiculous amounts of fragments get rewritten, and something to do with the MFT.
Yes TRIM is âneededâ to keep the SSDs in good enough health/performance over time, defrag however moves pieces of files to be closther together which in turn is a write operation which reduces the overall lifespan of the NAND flash cells.
Afaik TRIM is issued as a queue operation when certain operations are requested or done through the OS automatically. I sadly havenât found a real good source for that.
Filesystems need to de-frag if they are sufficiently full otherwise you can run out of free clusters, never mind what the layout is. i.e., defrag is not really a performance thing on SSD, but the filesystem running on top can suffer fragmentation and lose the ability to write.
Have seen it under NTFS on an old database server. Had 10-20% free space, could not write to disk due to fragmentation. Essentially free space was scattered over so many fragments that it couldnât be used due to filesystem issues. De-frag fixed it.
So whilst de-frag is less essential on SSD and likely youâll get away with never needing it, if you run your filesystems pretty full and do a lot of read/write you can eventually trip NTFS up.
This would be why MS are still de-fragging SSDs periodically. Never mind that this patch fucked that up, and does it too much
SSD defrag strategy is/should be to focus on consolidation of free space. Small amounts of file fragmentation arenât a big deal as you donât really pay an access speed penalty whereas on spinning disk the penalty can be huge.
HD de-frag strategy is/was to consolidate files into contiguous chunks and place those chunks as close to the start of the disk as possible where the outer tracks have a faster read/write rate. AND try to consolidate free space in the process of doing that