[linux-lvm] exposing snapshot block device
tomas.dalebjork at gmail.com
Thu Nov 7 17:29:21 UTC 2019
Den tors 7 nov. 2019 kl 17:54 skrev Mikulas Patocka <mpatocka at redhat.com>:
> On Tue, 5 Nov 2019, Tomas Dalebjörk wrote:
> > Thanks,
> > That really helped me to understand how the snapshot works.
> > Last question:
> > - lets say that block 100 which is 1MB in size is in the cow device, and
> a write happen that wants to something or all data on that region of block
> > Than I assume; based on what have been previously said here, that the
> block in the cow device will be overwritten with the new changes.
> Yes, the block in the cow device will be overwritten.
> > Regards Tomas
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