Hi On Fri, Jun 28, 2019, 17:54 Marcus Schopen <[email protected]> wrote:
> Hi, > > does anyone have experience with gluster in KVM environments? I would > like to hold qcow2 images of a KVM host with a second KVM host in sync. > Unfortunately, shared storage is not available to me, only the > two KVM hosts. In principle, it would be sufficient for me - in case of > a failure of the first KVM host - to start the guests on the second > host by hand without restoring the images from the nightly backup > first. The question is, is glusterfs a sensible solution here or > should one better use other approaches e.g. DRBD. I have read > contradictory statements about this, many advise against using gluster > for qcow2 images, some report no problems at all. > Redhat uses gluster in its RHEV solution. Ovirt is the open source one. Thus gluster can be used with good results. You will need a 10G network for the gluster storage for higher performance and enable sharding on the shared volume. Two node setups are prone to split brain issues which may cause headaches. I am running such setups for years and encountered few splits which i was able to recover from. You need some fencing solution inplace to minimize such issues. I would expect higher performance from DRBD, though I am not aware of any GUI solution that simplifies its management. > > Cheers > Marcus > > > _______________________________________________ > Gluster-users mailing list > [email protected] > https://lists.gluster.org/mailman/listinfo/gluster-users >
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