On Mon, 2022-12-26 at 21:37 +0000, Tim Woodall wrote: > > > But now I'm concerned about disks in a raid-1. Everything gets written > when the raid rebuilds. > > I've found fstrim - but that only seems to be for filesystems. > > How do I tell the card that the free space in the VG really is free?
You probably can't. I've not heard of removable cards supporting the 'trim' command.
