Am 24.09.2014 10:47, schrieb Stefan Hajnoczi:
I think the assumption with drive-mirror is that you throw away the
destination image if something fails. That's the exact opposite of MC
where we want to fail over to the destination :).
This was not obivous for me...
Here is one example of a
Am 18.09.2014 15:56, schrieb Stefan Hajnoczi:
There is the issue of request ordering (using write cache flushes). The
secondary probably needs to perform requests in the same order and
interleave cache flushes in the same way as the primary. Otherwise a
power failure on the secondary could
Thank you for your Time and the detailed answer!
I have needed some time to work through your answer ;-)
What MC needs is a block device agnostic, controlled and asynchronous
approach for replicating the contents of block devices and its state changes
to the secondary VM while the primary VM is
Am 11.09.2014 19:44, schrieb Dr. David Alan Gilbert:
For keeping the complete system state consistent on the secondary system
there must be a possibility for MC to commit/discard block device state
changes. In normal operation the mirrored block device state changes (block
buffer) are committed
Hello Michael, Hello Paolo
i have „studied“ the available documentation/Information and tried to
get an idea of the QEMU live block operation possibilities.
I think the MC protocol doesn’t need synchronous block device
replication because primary and secondary VM are not synchronous. The
videos or any other source of information to get started?
Walid
Am 14.08.2014 um 12:58 schrieb Dr. David Alan Gilbert dgilb...@redhat.com:
cc'ing in a couple of the COLOers.
* Michael R. Hines (mrhi...@linux.vnet.ibm.com) wrote:
On 08/13/2014 10:03 PM, Walid Nouri wrote:
While looking
Hi Paolo,
thanks for your hint. I missed your mail from last sunday.
I will take a look on that!
Walid
Am 17.08.2014 um 11:52 schrieb Paolo Bonzini pbonz...@redhat.com:
Il 11/08/2014 22:15, Michael R. Hines ha scritto:
Excellent question: QEMU does have a feature called drive-mirror
in
.)
The MC implementation also needs to be re-based against the latest
master - I just haven't had a chance to do it yet because some of my
hardware has been taken away from me the last few months - will
see if I can find some reasonable hardware soon.
- Michael
On 08/12/2014 01:22 AM, Walid Nouri
