I've found this on RHV manual, which should apply to oVirt:


Let me know if works, because I'm considering a migration to oVirt and I will 
have the same issue.


Sent from my iPhone

On 3 Jul 2017, at 11:42, Matthias Leopold 


i'm trying to use iSCSI multipathing for a LUN shared by a Hitachi SAN. i can't 
figure out how this is supposed to work, maybe my setup isn't applicable at 

our storage admin shared the same LUN for me on two targets, which are located 
in two logical networks connected to different switches (i asked him to do so). 
on the oVirt hypervisor side there is only one bonded interface for storage 
traffic, so i configured two VLAN interfaces located in these networks on the 
bond interface.

now i create the storage domain logging in to one of the targets connecting 
through its logical network. when i try to create a "second" storage domain for 
the same LUN logging in to the second target, oVirt tells me "LUN is already in 
use". i understand this, but now i can't configure an oVirt "iSCSI Bond" in any 

how is this supposed to work?
right now the only working setup i can think of would be an iSCSI target that 
uses a redundant bond interface (with only one IP addresss) to which my 
hypervisors connect through different routed networks (using either dedicated 
network cards or vlan interfaces). is that correct?

i feel like i'm missing something, but i couldn't find any examples for real 
world IP setups for iSCSI multipathing.

thanks for explaining
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