Re: [ovirt-users] oVirt + gluster with host and hosted VM on different subnets
Am 08.07.2014 21:15, schrieb Martin Sivak:
Hi,
I do not recommend running hosted engine on top of GlusterFS. Not even on top of NFS
compatibility layer the GlusterFS provides.
There have been a lot of issues with setups like that. GlusterFS does not ensure that the
metadata writes are atomic and visible to all nodes at the same time and that causes
serious trouble (the synchronization algorithm relies on the atomicity assumption).
You can use GlusterFS storage domain for VMs, but the hosted engine storage domain needs
something else - NFS or iSCSI (available in 3.5).
You should maybe document this with a big fat warning
sign on the wiki and in the release notes and on the
feature pages.
I think many people will just combine what ovirt offers
if there is just a warning hidden somewhere on a mailing
list.
--
Mit freundlichen Grüßen / Regards
Sven Kieske
Systemadministrator
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