[linux-lvm] Is trim/discard supported on LVM RAID logical volume? (resent)

Patrick Dung mpatdung at gmail.com
Mon Nov 28 07:43:36 UTC 2016


In my old setting, fstrim is supported:
ext4 over LVM over MD software raid (mdadm) > SSD.

After reading the recommendation in RHEL 6

I change to use raid 1 mirror using 'LVM RAID logical volume'. It make use
of MD raid internally.
But I found fstrim does not work anymore. Is the behavior expected?

Thanks and regards,
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