Prototype for the time machine similar solution as you noted in h-u-b whiteboard.

Erast Benson erast at
Wed Nov 15 21:38:00 GMT 2006

On Wed, 2006-11-15 at 22:27 +0100, Ulrik Mikaelsson wrote:
> Well my only thought is a reference to the old way of engineering, to
> first decide what you want, and then use the tools that best suits
> your needs to achieve it.
> Since I believe the "Time-Machine" use case to be one of the two
> reasons why snapshotting in LVM were implemented, to me it seems like
> the best suited tool. 
> "Do the right thing, and do the thing right." It seems to me like a
> time-machine is the right thing to do, and LVM is the right way to
> achieve it, but I could be wrong. :)

I think you are right. And LVM is the right place to do such things.
Unfortunetly it is quite limited on functionality. OpenSolaris's ZFS
would be way better fit, but it is not an option for GNU/Linux users at
the moment.

> Respectfully
> / Ulrik
> On 11/15/06, Sivan Greenberg <sivan at> wrote:
>         Ulrik Mikaelsson wrote:
>         > Don't know if I've totally missed something, but for local
>         backups,
>         > isn't it possible to use the snapshotting feature of LVM?
>         Should be
>         > quite fast, I think?
>         I believe that the complexity of a back end essentially
>         dictates how 
>         complex it's UI as a fron end, as we are aiming for something
>         simple and
>         usable by even newest people to Ubuntu. I can't see mandating
>         LVM
>         installation could align with that actually. However, if we
>         had LVM by
>         default like in recent fedora and red hat we could probably
>         use this to
>         achieve the "Time Machine" functionality by wrapping it up in
>         a nice
>         similar UI.
>         More thoughts ?
>         Sivan

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