On 02/20/2015 09:30 AM, Simone Tiraboschi wrote:
----- Original Message -----
From: "Pat Riehecky" <[email protected]>
To: [email protected]
Sent: Thursday, February 19, 2015 3:14:08 PM
Subject: [ovirt-users] Local and remote storage?
Hello,
I've run into an "odd" problem with oVirt 3.5.1.
I've two sets of VMs:
A) some fairly critical VMs which need HA and have access to shared storage
B) some less important systems which can be reconstructed in the event
of a disaster
My plan was to use the slack disk on my oVirt nodes to host the 'B'
systems while still allowing the 'A' systems to run there. This seems
to not be allowed[1].
Is there a way I can utilize both the spare disk on my compute nodes and
have HA configured for some VMs with shared storage?
Currently indeed each datacenter must be configured as a shared or local
storage one, no mix for the same datacenter.
For the next release (ovirt 3.6) we are going to have oVirt and GlusterFS hyper
converged: you'll can use each host both for virtualization pourposes and for
storages ones sharing the local spare disks into a shared GlusterFS volume to
be used by oVirt hosts.
So you can also have HA capabilities and so on for the VM stored on the host
disks shared in a GlusterFS volume; at the same time you could still use you
state-of-the art SAN for critical VMs.
Here you can find some info an this architecture:
http://www.ovirt.org/images/6/6c/2015-ovirt-glusterfs-hyperconvergence.pdf
Than we are also going to have self-hosted engine over GlusterFS.
Pat
[1] http://www.ovirt.org/OVirt_Administration_Guide#Preparing_Local_Storage
also in 3.6 we are working on removing the hopefully last obstacle to
allow mixed local/shared (which will require work to allow that, post 3.6)
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