Can some one share the use cases for the local storage?
Hi, I would like to understand the local storage purpose. I was wondered are there any production systems using local storage? Or in another way, how to use effectively the local hosts disks? My ovirt purpose is so serve HA-VM LAMPs. Thanks, Arman.
On 06/11/14 09:15, Arman Khalatyan wrote:
Hi, I would like to understand the local storage purpose. I was wondered are there any production systems using local storage? Or in another way, how to use effectively the local hosts disks? My ovirt purpose is so serve HA-VM LAMPs.
Well yes there is local storage in production at various sites. For real HA you inevitable need a shared storage solution. You could try to utilize local disks by using gluster ceph or any other software defined storage system. Gluster is the most integrated withing ovirt, but here are some caveats: It's not encouraged to run vms on the hosts which are part of the gluster cluster (but it works, at least this is what you can read on this very ML). It's not supported to run hosted-engine on top of gluster, at least not without a replica count of at least 3. HTH -- Mit freundlichen Grüßen / Regards Sven Kieske Systemadministrator Mittwald CM Service GmbH & Co. KG Königsberger Straße 6 32339 Espelkamp T: +49-5772-293-100 F: +49-5772-293-333 https://www.mittwald.de Geschäftsführer: Robert Meyer St.Nr.: 331/5721/1033, USt-IdNr.: DE814773217, HRA 6640, AG Bad Oeynhausen Komplementärin: Robert Meyer Verwaltungs GmbH, HRB 13260, AG Bad Oeynhausen
On 06.11.2014 09:44, Sven Kieske wrote:
On 06/11/14 09:15, Arman Khalatyan wrote:
Hi, I would like to understand the local storage purpose. I was wondered are there any production systems using local storage? Or in another way, how to use effectively the local hosts disks? My ovirt purpose is so serve HA-VM LAMPs.
Well yes there is local storage in production at various sites. For real HA you inevitable need a shared storage solution.
An example and 'real' use case to Svens answer: The term 'local' might indeed a bit misleading. The posix file system option basically lets you use anything posix compliant. For instance I am using a cluster file system called StorNext in our company - witch is very well suited for use with oVirt. Without POSIX, I could not have used it.
You could try to utilize local disks by using gluster ceph or any other software defined storage system.
Gluster is the most integrated withing ovirt, but here are some caveats:
It's not encouraged to run vms on the hosts which are part of the gluster cluster (but it works, at least this is what you can read on this very ML).
It's not supported to run hosted-engine on top of gluster, at least not without a replica count of at least 3.
Posix enables usage of GlusterFuseFS. However, it might be the case the replica 3 is only needed when using FuseFS [1], independent from the fact of using Gluster and Compute on the same host.
HTH
[1] http://www.mail-archive.com/users@ovirt.org/msg22416.html -- Daniel Helgenberger m box bewegtbild GmbH P: +49/30/2408781-22 F: +49/30/2408781-10 ACKERSTR. 19 D-10115 BERLIN www.m-box.de www.monkeymen.tv Geschäftsführer: Martin Retschitzegger / Michaela Göllner Handeslregister: Amtsgericht Charlottenburg / HRB 112767
participants (3)
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Arman Khalatyan -
Daniel Helgenberger -
Sven Kieske