TRIM

FSTrim Trimming the Same Amount Multiple Times in a Row

I was running fstrim on a couple of old drives in anticipation of installing them in an even older RAID controller that doesn't support the trim command.[0] To do this, I formatted the entire drive as ext4, mounted it, then ran fstrim -v /mnt/temp to discard all of the unused blocks. I did this using a USB-SATA adapter, and what I noticed was that after running fstrim the adapter activity light was still blinking like crazy. I was curious if fstrim was still running, even though the command had completed already.

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