[ovirt-users] iscsi failover MD3820i

[Dan Yasny]

"*Important:* If more than one path access is required, ensure to discover
and log in to the target through all the required paths. Modifying a
storage domain to add additional paths is currently not supported."

This is from the oVirt admin guide, did you discover and login to all the
MD3xxxi controllers/portals when you were setting the storage domain up?

On Tue, Mar 7, 2017 at 4:43 PM, Marcin Kruk <askifyouneed at gmail.com> wrote:

> Hello I have got Dell MD3820i and four interfaces which was connected to
> the hostst via switches.
>
> But there is only one IP which I can set during the configuration of iSCSI
> RHV storage.
> Everything has been fine until I pluged off cable from the storage NIC
> interface with IP configured in the RHV iSCSI section.
>
> Now VDSMD got problem because it tries to connect via iscsiadm with exact
> IP and does not use the configuration from the /var/lib/iscsi/, where are
> tree extra paths to achive the LUN. In multipath -ll I see an active path,
> of course with the second storage interface IP
>
> systemctl status vdsmd:
>    CGroup: /system.slice/vdsmd.service
>            ├─4975 /usr/bin/python /usr/share/vdsm/vdsm
>            ├─5558 /usr/bin/sudo -n /usr/sbin/iscsiadm -m node -T
> iqn.1984-05.com.dell:powervault.md3800i.600a098000ae589c000000005893ade2
> -I default -p 192...
>            └─5559 /usr/sbin/iscsiadm -m node -T iqn.1984-05.com.dell:
> powervault.md3800i.600a098000ae589c000000005893ade2 -I default -p
> 192.168.130.101 32...
>
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