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Hi Andrei,
i don't think so.
The future way to support Ceph in Xencenter is the kernel.
Xencenter is based on .... centOS, and centOS is the downstream
of RHE.
This means that some day in the future the kernel of RHE will be
already compiled to completly support RADOS.
At that time having ceph working will be easy as having NFS
working.
Xen is just the software and work already with CEPH if you setup
a server by yourself with some linux distribution.
XenServer is the adhoc Linux distribution, with a kernel
personalized.
Which makes install 3rd parts componets harder.
The fact that is based on CentOS is why more-or-less you can let
this work.
However nobody know why should be as painfull as this.
Ceph is already well supported by all the main Linux
distribution.
In xenserver it seems that they just forgot to includes some RPMs
and don't want to let you use it.
(while 4 years ago claimed that they are goona to support it in
the near future).
This is so bad.
Andrei, are you using Ceph at the moment?
Il 24/02/2017 18:17, Andrei
Mikhailovsky ha scritto:
Hi Max,
I've played around with ceph on xenserver about 2-3 years
ago. I made it work, but it was all hackish and a lot of
manual work. It didn't play well with the cloud orchestrator
and I gave up hoping that either Citrix or Ceph team would
make it work. Currently, I would not recommend using it in
production. There was very little done since and I am not sure
if it is even safe to use it on the current versions of ceph.
You should be able to run nfs over ceph and use ceph this way,
but I am not sure how well it would perform.
Taking into account that ceph has been converted into the
redhat house, I doubt that they will play nicely with
xenserver. Please correct my way of thinking, but my guess is
that from RH point of view all the efforts would go to make
ceph work well in kvm environment and forget about other
hypervisors. From the xenserver point of view, I doubt people
will be taking it seriously until ceph proves itself to be
rock solid, or have commercial development backing, which so
far, doesn't seem like the case. Just reading about issues
with ceph during install, updates, usage, etc. on this thread
tells me that ceph is still rough and needs to be polished.
Andrei
Dear all,
even if Ceph should be officially supported by Xen since 4
years.
Still there is no support yet.
At this point there are only some self-made plugin and
solution around.
Here some:
Nobody know how much they are compatible or if they are
gonna to break Xen the next update.
The ugly truth is that XEN is not still able to fully
support Ceph and we can only pray that one of the plugin
above will not destroy our precious data or VDI.
Does anybody had some experience with the plugin above?
Which one you'll reccomend?
Is there any good installation guide to let this work
correctly?
Can I just install Ceph with ceph-deploy or do I have to
unlock repos on the xenserver and instal it manually?
Thanks for any kind of support.
Regards,
Max
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