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Re: [linux-lvm] Snapshots and disk re-use



On Wed, 23 Feb 2011, Jonathan Tripathy wrote:

> > Actually, if you never (or rarely) write to the origin, lots of snapshots
> > should be fine.
> 
> > But every write to the origin will first copy the
> > original origin data to every snapshot.
> >
> Why would origin data be copied over to the snapshot after the snapshot has
> been created? Surely the point of a snapshot is to have "frozen" data?

That is how the data is "frozen" despite being written to on the origin.

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