Hi Ulrich,
On 2021/5/18 18:52, Ulrich Windl wrote:
Hi!
I thought using the reflink feature of OCFS2 would be just a nice way to make
crash-consistent VM snapshots while they are running.
As it is a bit tricky to find out how much data is shared between snapshots, I
started to write an
Are you using KVM ?
Maybe you can create a snapshot on VM level and then defragfs.ocfs2 the
read-only part of the VM disk file and after the defrag -> merge it back by
deleting the snapshot ?
Yet, the whole idea seems wrong to me. I would freeze the FS and the
application in the VM and then
On Tue, May 18, 2021 at 1:52 PM Ulrich Windl
wrote:
>
> Hi!
>
> I thought using the reflink feature of OCFS2 would be just a nice way to make
> crash-consistent VM snapshots while they are running.
> As it is a bit tricky to find out how much data is shared between snapshots,
> I started to
Hi!
I thought using the reflink feature of OCFS2 would be just a nice way to make
crash-consistent VM snapshots while they are running.
As it is a bit tricky to find out how much data is shared between snapshots, I
started to write an utility to examine the blocks allocated to the VM backing
