Matthew Dillon wrote:
quoted text
>     DragonFly has a new filesystem called HAMMER in the works which should
>     become production ready in a few months.  All primary operations work now
>     so it is very real, but major pieces still need to be written and others
>     need to be rewritten and stabilized.  It's in pre-alpha state now and
>     will be early-alpha by the DFly 2.0 release later this month.  It should
>     be in a state that can be ported without having to play constant catchup
>     in maybe 2-3 months.  This filesystem has full historical capabilities...
>     you don't even have to make snapshots per say, just sync, and you can get
>     at any data as-of any point in the past with a simple @@<timestamp>
>     file/directory name extension.

Wow, pretty neat. If HAMMER becomes the default filesystem and snapshots
are low cost and easy are they any plans to leverage these features? :-)
 If I understand some of the opensolaris work correctly they are
starting to make use of zfs snapshots for upgrades/updates and packaging
systems.
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