[ovirt-users] iSCSI storage domain and multipath when adding node

[Ondrej Svoboda]

Gianluca,

I can see that the workaround you describe here (to complete multipath
configuration in CLI) fixes an inconsistency in observed iSCSI sessions. I
think it is a shortcoming in oVirt that you had to resort to manual
configuration. Could you file a bug about this? Ideally, following the bug
template presented to you by Bugzilla, i.e. "Expected: two iSCSI sessions",
"Got: one the first node ... one the second node".

Edy, Martin, do you think you could help out here?

Thanks,
Ondra

On Fri, Apr 7, 2017 at 5:21 PM, Gianluca Cecchi <gianluca.cecchi at gmail.com>
wrote:

> Hello,
> my configuration is what described here:
> http://lists.ovirt.org/pipermail/users/2017-March/080992.html
>
> So I'm using iSCSI multipath and not bonding
> can anyone reproduce?
>
>
> Initial situation is only one node configured and active with some VMS
>
> I go and configure a second node; it tries to activate but networks are
> not all already mapped and so gies to non operational.
> I setup all networks and activate the node
>
> It happens that:
> - on the first node where I currently have 2 iSCSI connections and
> 2multipath lines (with p1p1.100 and p1p2) it is instantiated a new iSCSI
> SID using interface "default" and in multipath -l output I see now 3 lines
>
> - on the newly added node I only see 1 iSCSI SID using interface default
>
> My way to solve the situation was to go inside iscsi multipath section
> do nothing but save the same config
>
> brutally on first node
> iscsiadm -m session -u
> --> all iscsi sessions are closed
> after a while I see again the original 2 connections recovered, with
> correct interface names used
>
> - on second node
> iscsiadm -m session -u
> --> the only session is cloed
> nothing happens
> if I set to maintenance the node and then activate the node
> --> the 2 correct iscsi sessions are activated...
>
> Thanks
> Gianluca
>
>
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