Darren J Moffat wrote: > Andreas Dilger wrote: > >> I agree, but I suspect large dnodes could also be of use to ZFS at >> some point, either for fast EAs and/or small files, so we wanted to >> get some buy-in from the ZFS developers on an approach that would >> be suitable for ZFS also. In particular, being able to use the larger >> dnode space for a variety of reasons (more elements in dn_blkptr[], >> small file data, fast EA space) is much more desirable than a Lustre-only >> implementation. > > Let me give an alternate view here. This could make ZFS Crypto more > complex because now data would sometimes be stored inside the dnode. I > need to think about this a bit more but in general it makes me uneasy, > it may turn out not to be an issue though.
I thought we were just talking about increasing the potential bonus buffer size. So it is no different than the problem you have today: you need to encrypt the bonus buffer part of the dnode_phys_t, but not the rest of it. --matt
