Messages in this thread | | | Subject | Re: [dm-devel] [PATCH 0/3] dm raid/raid1: enable discard support when any devices support discard | From | Ondrej Kozina <> | Date | Mon, 20 Apr 2020 12:22:59 +0200 |
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On 4/20/20 12:13 PM, Paul Wise wrote: > On Mon, 2020-04-20 at 09:35 +0200, Ondrej Kozina wrote: > >> Did you have discard allowed on both dm-crypt devices? dm-crypt >> (kernel) does not allow discards by default. > > I did not, I guess that explains why I got no errors. >
FYI if you use LUKS2 metadata format for encrypted drives, you can enable discards by default once and for all by following command:
cryptsetup open /dev/sdx sdx_unlocked --allow-discards --persistent
Any following unlock will enable discards automatically.
Regards O.
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