On Tue, 19.05.15 02:33, Pádraig Brady (p...@draigbrady.com) wrote: > FYI... > > mv reflinks by default, but only in the unreleased V8.24 (Fedora 23). > > cp doesn't default to --reflink=auto as that would break the case where one > uses copy > for durability reasons to have a second copy of the data. Also for > performance reasons > you may want the writes to happen at copy time rather than some latency > sensitive process > working on a CoW file and being delayed by the writes possibly to a different > part of a mechanical disk.
I am pretty sure that both those usecases are of the more exotic kind, and that reflinks should hence be the default, and people who want the byte-by-byte kind of copy should request it explicitly with --reflink=no or dd. I think a good user interface make the common operations easy (and hence default) and the exotic ones possible. For me that clearly means that --reflink=auto should be the default, and --reflink=no the option, and *not* the other way round... Lennart -- Lennart Poettering, Red Hat _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
