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 block/mirror.c that was introduced a couple of years ago. I'm not >> sure what the >> adoption rate of the feature is, but I would start with that one. > > block/mirror.c is asynchronous, and there's no support for communicating > checkpoints back to the master. However, the quorum disk driver could > be what you need. > > There's also a series on the mailing list that lets quorum read only > from the primary, so that quorum can still do replication and fault > tolerance, but skip fault detection. > > Paolo > >> There is also a second fault tolerance implementation that works a >> little differently called >> "COLO" - you may have seen those emails on the list too, but their >> method does not require a disk replication solution, if I recall correctly. >
