On Mon, Jun 9, 2014 at 9:23 AM, Nicolas Ecarnot <nicolas(a)ecarnot.net> wrote:
Le 09-06-2014 14:44, Maor Lipchuk a écrit :
> basically, you should upgrade your DC to 3.4, and then upgrade the
> clusters you desire also to 3.4.
Well, that seems to have worked, except I had to raise the cluster level
first, then the DC level.
Now, I can see the iSCSI multipath tab has appeared.
But I confirm what I wrote below :
>>>> I saw that multipathing is talked here :
>>>>
http://www.ovirt.org/Feature/iSCSI-Multipath
>>>>
>>>>> Add an iSCSI Storage to the Data Center
>>>>> Make sure the Data Center contains networks.
>>>>> Go to the Data Center main tab and choose the specific Data
Center
>>>>> At the sub tab choose "iSCSI Bond"
>>>>> Press the "new" button to add a new iSCSI Bond
>>>>> Configure the networks you want to add to the new iSCSI Bond.
>>>>
>>>>
>>>> Anyway, I'm not sure to understand the point of this wiki page and
this
>>>> implementation : it looks like a much higher level of multipathing over
>>>> virtual networks, and not at all what I'm talking about above...?
I am actually trying to know whether bonding interfaces (at low level) for
the iSCSI network is a bad thing, as was told by my storage provider?
--
Nicolas Ecarnot
Hi Nicolas,
I think the naming of the managed iscsi multipathing feature a "bond"
might be a bit confusing. It's not an ethernet/nic bond, but a way to
group networks and targets together, so it's not "bonding interfaces"
Behind the scenes what it does is creates iscsi
ifaces(/var/lib/iscsi/ifaces) and changes the way the iscsiadm calls
are constructed to use those ifaces (instead of the default) to
connect and login to the targets
Hope that helps.
-John