Multiple concurrent snapshots - what are the implications?
Hi all,
I am trying to wrap my head around the implications of utilizing multiple concurrent snapshots of the same LV.
What I seem not to get from my searches, is how it really works, if you do the follwoing:
- create a snpshot from a LV
- modify data on the LV (which is of course modified in the snapshot, due to COW)
- create another snapshot from the same LV
- modify data on the LV (deltas will be written on both snapshots)
If I now delete the 2nd snapshot, there's really nothing to do, since the deltas in snapshot2 are already present in snapshot1, but what if I delete the first snapshot before the second? Will the deltas then be carried over to the 2nd snapshot and the other ones, if ther're even more of them present?