Hi, does your stack support MC-LAG (multichassis link aggregation
group)? If so, configure LAGs with interfaces on both switches and you
should be fine.
-ps
On Thu, Apr 6, 2017 at 12:31 PM, Alessandro Briosi <ab1 at metalit.com>
wrote:> Hi all,
> a feature that would really be nice is network redundance.
>
> In a current installation I have 3 servers with 2 switches (staked with
> 10gb uplink). The servers contain VM.
>
> I have configured the hosts to comunicate through the first switch, but
> what happens is the switch goes down? Probably the VM would shutdown as
> the quorum is not available at any host.
>
> Is there a way to make it to switch automatically on a the backup link
> on the second switch ? (The hosts right now have bonding interfaces with
> LACP on the switches, bond0 -> switch1, bond1 -> switch2)
> I tried using balance-alb across the 2 switches but as the hosts are 3
> there's no balance at all...
>
> A bond of a bond is not possible AFAIK, but I'd like to have something
> similar.
>
> It would be nice to have something like iSCSI multipath or at least an
> active/backup network for the storage.
>
> Anybody has a suggestion on how to solve this right now?
>
> Thanks,
> Alessandro
>
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