[linux-lvm] exposing snapshot block device

[Mikulas Patocka]

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 100.
> 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.

Mikulas

> Regards Tomas