On Wed, 3 Aug 2022 10:15:54 -0500 David Teigland <teigland@xxxxxxxxxx> wrote: > On Tue, Aug 02, 2022 at 04:27:53PM +0200, ajs124 wrote: > > Hi, > > > > I've been wondering. Why does lvconvert not allow me to add raid > > integrity to LVs that are not top level? > > It only says "Integrity can only be added to top level raid LV." > > > > Skimming the commit that added this [1] did not provide me with > > an answer, so I thought I'd ask here. > > Hi, good question, I think it was just an effort to limit the scope of the > feature initially. Over time we can possibly expand the scope after > seeing how things were working technically, and the experience of users. > I'm curious to know what configuration you're trying, and if you have any > experience using raid+integrity otherwise. > > Dave Hi, we're using a thin pool on top of two raid lvs for thinpool metadata and data and I tried adding integrity to that. We don't have much experience with raid+integrity, just a handful of systems, which have been running fine. They're not particularly performance critical and we don't have much data on how exactly they behave. The reason why I started looking into this again is because I observed some mismatched sectors on a host, where all drives seem fine and I'd like to have integrity to maybe figure out if any of the drives are actually faulty. ajs124 _______________________________________________ linux-lvm mailing list linux-lvm@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
