Maybe an idea to add a cache volume to the LV?? Not 100% sure if this works but would be nice to try.
On Sun, 2021-04-04 at 20:18 +0200, Sebastian Bachmann wrote: > Hello, > > I played around with the new dm-integrity integration in lvm. > Unfortunately, it > is very slow, as the checksums has to be written and read on - which > is the > price to pay obviously. > > I thought that it might be a good idea to move the metadata to a fast > disk, > i.e., a SSD, however that is not possible and I get an error message > on pvmove: > > # pvmove -n r10_int_rimage_0_imeta /dev/sdd /dev/sda2 > Unable to pvmove device used for raid with integrity. > > I could not find a reason why this should not be done in theory, thus > I guess > that this is simply not supported by LVM right now? > Or is there another reason why you should keep the metadata always on > the same > device? > > Best, > Sebastian > > _______________________________________________ > linux-lvm mailing list > linux-lvm@redhat.com > https://listman.redhat.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ >
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