Hi again, I have more questions about geo-replication on oVirt-RHHI
Need to understand somethings about DR on oVirt-HI 1 - What does mean : Scheduling regular backups using geo-replication (point 3.3.4 RHHI 1.7 Doc Maintaining RHHI) - Does this mean creating a check-point? - If yes, does this mean that the geo-replication process will sync data up to that check-point and then stops the synchronization, then repeat the same cycle the day after? does this mean that the minimum RPO is one day? 2 - Why the use of this check-point? why not let the geo-replication work all the time? 3 - Geo-replication can be started/stoped after at any time, could this be a problem when executing a disaster-recovery? 4 - I am running a test environnement, and it's not up all the time, but I noticed this, if the geo-replication is running and the time of the schedule (the check-point hour) is reached, the replication is stopped. What does this mean? 5 - I created a snapshot of a VM on the source Manager, I synced the volume then I executed a DR, The VM was started on the Target Manager but the VM didn't have its snapshot, any idea??? Regards and be safe . Le ven. 4 oct. 2019 à 06:32, Satheesaran Sundaramoorthi <sasun...@redhat.com> a écrit : > Hello Wodel, > > Glad to hear for considering gluster geo-replication for oVirt-gluster HC > infra. > More answers inline > > On Wed, Oct 2, 2019 at 3:54 PM wodel youchi <wodel.you...@gmail.com> > wrote: > >> Hi, >> >> oVirt Hyperconverged disaster recovery uses georeplication to replicate >> the volume containing the VMs. >> >> What I know about georeplication is that it is an asynchronous >> replication. >> >> My questions are : >> - How the replication of the VMs is done, are only the changes >> synchronized? >> > Gluster geo-replication should be configured from the gluster volume that > backs the storage domain at your > site to other( at the remote site ). Gluste geo-rep uses 'rsync' under the > hoods, so post the first sync, > only the changes are synchronized > >> - What is the interval of this replication? can this interval be >> configured taking into consideration the bandwidth of the replication link. >> > You have to make use of oVirt Manager to schedule your remote sync. > Click on gluster volume backed storage domain -> click on 'Remote data > sync setup' -> create a schedule > >> - How can the RPO be measured in the case of a georeplication? >> > Its completely based on the schedule that you set. > Geo-replication process by itself, sets the checkpoint at the master > volume and it guarantees > that contents will be synced till that checkpoint to the slave, when > completed. > > Thanks, > Satheesaran S ( sas ) >
________ Community Meeting Calendar: Schedule - Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC Bridge: https://bluejeans.com/441850968 Gluster-users mailing list Gluster-users@gluster.org https://lists.gluster.org/mailman/listinfo/gluster-users