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
------------------------------------------------------------------------
*From: *"Massimiliano Cuttini" <m...@phoenixweb.it>
*To: *"ceph-users" <ceph-users@lists.ceph.com>
*Sent: *Friday, 24 February, 2017 14:52:37
*Subject: *[ceph-users] Ceph on XenServer
Dear all,
even if Ceph should be officially supported by Xen since 4 years.
*
http://xenserver.org/blog/entry/tech-preview-of-xenserver-libvirt-ceph.html
* https://ceph.com/geen-categorie/xenserver-support-for-rbd/
Still there is no support yet.
At this point there are only some self-made plugin and solution
around.
Here some:
* https://github.com/rposudnevskiy/RBDSR
* https://github.com/mstarikov/rbdsr
* https://github.com/FlorianHeigl/xen-ceph-rbd
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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