Re: [libvirt-users] Define storage pool on NFS, mounted from fstab
On 2013-06-27, Николай /Thug/ <blackthug(a)gmail.com> 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(a)oddbit.com>