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Re: [linux-lvm] Re: [RFC] Multiple Snapshots - Manageability problem



Tomasz Chmielewski <mangoo wpkg org> wrote:
> Dan Kegel schrieb:
> > Yes.  Dan Phillips has implemented a shared snapshot exception store.
> > You can try it out now if you like; it's at http://zumastor.org.
> > It feels a bit different from the user's point of view than LVM, though.
> > It plays well with the device mapper and can be used with any
> > block device (LVM or non-LVM).
>
> Does it use device mapper (or it just "plays well with the device
> mapper")? Or is it a totally different technology?

It is a device mapper target, so yeah, it uses device mapper.

> I didn't find it explained very clearly in Zumastor HOWTO on
> http://zumastor.googlecode.com/svn/trunk/doc/zumastor-howto.html (other
> than pointers to /dev/mapper/zumatest, which probably means it uses
> device mapper).

A little further down the page, http://zumastor.org links to
http://zumastor.googlecode.com/svn/trunk/doc/desimplnotes.html
which does mention it explicitly.
- Dan


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