> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Karl Wagner
> The only thing I think Oracle should have done differently is to allow
> either a downgrade or creating a send stream in a lower version
> (reformatting the data where necessary, and disabling features which
> weren't present). However, this would not be a simple addition, and it
> is probably not worth it for Oracle's intended customers.
So you have a backup server in production, that has storage and does a zfs send
to removable media, on periodic basis. (I know I do.)
So you buy a new server, and it comes with a new version of zfs. Now you can't
backup your new server.
Or maybe you upgrade some other machine, and now you can't back *it* up.
The ability to either downgrade a pool, or send a stream that's compatible with
an older version seems pretty obvious, as a missing feature.
I will comment on the irony, that right now, there's another thread on this
list seeing a lot of attention, regarding how to receive a 'zfs send' data
stream on non-ZFS systems. But there is no discussion about receiving on older
zfs-discuss mailing list