[ovirt-users] Re: Clusters run virtual machines or Red Hat Gluster Storage Servers
OVirt + Gluster is called 'Hyperconverged' setup and it supports only replica3 or
a 'replica3 arbiter1' volumes.
Vmware VSAN is another popular Hyperconverged Setup but requires a lot of licenses.
The CPU and Disk resources are plenty on virtualization Hosts and this setup allows you
to save space by removal of the iSCSI/NFS/SAN dedicated system.
The setup is quite popular and it works quite well, but requires a 10G network (as load
balancing smaller NICs is very hard ) - if performance is required, while even a 1 gbit/s
NIC is possible to be used.
Note: 1gbit/s will provide no more than 87 MB/s on gluster level for all your VMs , which
is very poor.
If you have 4 hosts -> one of them will not be in the gluster setup, or you will have 2
separate gluster volumes like this:
oVirt1- Replica for volume A
oVirt2- Replica for volume A , arbiter for volume B
oVirt3 - Replica for volume B,arbiter for volume A
oVirt4 - Replica for volume B
Then you add them as hosts in your oVirt setup.
Best Regards,
Strahil NikolovOn Jun 10, 2019 05:29, xilazz(a)126.com wrote:
Hi, everybody. When I was looking at the administrator's manual, it prompted Clusters
run virtual machines or Red Hat Gluster Storage Servers. These two purposes are mad
exclusive:
Virtualization and storage hosts together. When I configured the cluster, I said that the
glusterfs and virt I saw were alternatives to the two checkboxes.
I would like to ask what happens when glusterfs and virt are in the same cluster?
How can I use hosted engine when I have four nodes?
Thank you very much for your reply.
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