On 2013-06-27, Николай /Thug/ <blackthug@xxxxxxxxx> wrote:
> We've got a question, as there's a need to mount NFS over RDMA.
> How we should define a pool on an already mounted NFS folder? The pool must
> be "shared" for all KVM nodes for live migration purposes.
> Thanks in advance.
An NFS mounted pool shouldn't be any different from a regular
directory-based pool. You should be able to define it in virsh like
this:
virsh # pool-define-as poolname dir --target /path/to/nfs/mount
virsh # pool-autostart poolname
virsh # pool-start poolname
Which will get you something like this:
virsh # pool-dumpxml poolname
<pool type='dir'>
<name>poolname</name>
<uuid>b1fb2bef-baa4-0163-fbef-369c24c43a01</uuid>
<capacity unit='bytes'>52710469632</capacity>
<allocation unit='bytes'>15555280896</allocation>
<available unit='bytes'>37155188736</available>
<source></source>
<target>
<path>/tmp/libvirt</path>
<permissions>
<mode>0700</mode>
<owner>4294967295</owner>
<group>4294967295</group>
</permissions>
</target>
</pool>
Assuming you have the NFS volume mounted at the same point on all your
KVM hosts you can just perform the same commands on each host.
--
Lars Kellogg-Stedman <lars@xxxxxxxxxx>
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