[ovirt-users] Re: Asking about snapshot concept

2018-06-07 Thread Eyal Shenitzky
Exactly. On Thu, Jun 7, 2018 at 10:21 AM, Terry hey wrote: > Hi Eyal, > > Thank you so much for answering me about snapshot concept. I am sorry for > my late reply. > > Do you mean that when we create a new COW layer, we not only need to > preserve the original disk, but we also need to mark the

[ovirt-users] Re: Asking about snapshot concept

2018-06-07 Thread Terry hey
Hi Eyal, Thank you so much for answering me about snapshot concept. I am sorry for my late reply. Do you mean that when we create a new COW layer, we not only need to preserve the original disk, but we also need to mark the difference. Therefore, the disk format must be changed to be sparse? Als

[ovirt-users] Re: Asking about snapshot concept

2018-05-27 Thread Eyal Shenitzky
Hey Terry, When creating a snapshot it causes a new COW layer to be created over the current layer. All write actions performed after a snapshot is taken are written to the new COW layer. The format that supports the option of "growable" disks is sparse, therefore, when creating a snapshot of the