Bert's notes » TRIM https://a20.net/bert Mon, 02 Nov 2020 10:47:22 +0000 en-US hourly 1 http://wordpress.org/?v=3.8.5 TRIM on Linux not supported for modern Samsung SATA drives? https://a20.net/bert/2015/07/23/discardtrim-not-getting-through-kvmlvmmdsatassd-stack/ https://a20.net/bert/2015/07/23/discardtrim-not-getting-through-kvmlvmmdsatassd-stack/#comments Thu, 23 Jul 2015 13:44:18 +0000 https://a20.net/bert/?p=10 Previous title: Discard/TRIM not getting through KVM/LVM/MD/SATA/SSD stack

I thought my TRIMs were being blocked by the virtualization/LVM stack, but it turns out the bare device won’t be TRIMmed either.

# fstrim /mnt/sde/
fstrim: /mnt/sde/: FITRIM ioctl failed: Operation not supported

According to this Algolia blog article there has been an kernel bug affecting these drives (mine is a Samsung 850 PRO 1TB), so I guess it has been blacklisted for the time being.

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