[ovirt-users] Re: Active Active Stretched Node cluster not working as expected.
On Sat, Aug 19, 2023 at 7:03 PM <gaurang.patel(a)allotgroup.com> wrote:
Hi,
i have a Six node Stretched HCI cluster with 2 x 3 =6 distributed
Replicated bricks, want to achieve Active - Active Disaster Recovery , if
my three hosts in DC power Down or Failed my DR Site Three node should take
care of running virtual machines.
During Split-brain scenario Ovirt-Hosted-Engine VM goes in PAUSE mode and
not restarting on DR hosts and waited for long time, due to this my all
production VMs are not restarting on DR Site.
Hi,
even if the guide mentions GlusterFS as supported storage domain for
Active-Active DR scenario and Self Hosted Engine configuration as a
supported one for Active-Active DR scenario, and it doesn't explicitly
mention that HCI configurations are not supported, I have always
interpreted that the storage replication mentioned inside the docs refers
to "external" replication, provided by the storage array hw architecture,
not by RHV HCI sw solution itself. In that sense your architecture should
not be a supported one for Active-Active DR scenario.
Some wordings inside the docs:
"
...
This configuration requires replicated storage that is writeable on both
sites...
...
The sites require synchronously replicated storage that is writeable on
both sites with shared layer 2 (L2) network connectivity...
...
pre-requisites
Real-time storage replication service to duplicate the storage.
"
Anyway you can open a bugzilla request to ask for confirmation.
HIH,
Gianluca
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