[linux-lvm] Snapshot limit?

[Mike Snitzer]

On Tue, Jul 24 2012 at 10:21am -0400,
Fred van Zwieten <fvzwieten at vxcompany.com> wrote:

> I agree, but that doesn't answer my questions ;-)

please don't top-post.

The old dm-snapshot cannot scale to 150 concurrent read-only
snaps.. sorry.

There would be a 150-way copy out to the 150 different COW areas.  Aka,
the dm-snapshot N-way copy-out penalty

thinp snapshots use a single shared pool for the COW area.