[ovirt-users] Host cannot access the Storage Domain(s) <UNKNOWN> attached to the Data Center

[Fawzy Ibrhim]

Dear Sir;

I thought also that it could be issue with multipath; so I have added to multipathd.conf the below lines:-
blacklist {
    wwid  "*" 
}

# multipath -ll
<nothing>

# iscsiadm -m discovery -t st -p X.X.X.X
X.X.X.X:3260,1 iqn.2006-01.com.openfiler:tsn.6f138bf1cc59

# multipath -ll
<nothing>



Best Regards
Fawzy Ibrahim


________________________________
From: Raz Tamir <ratamir at redhat.com>
To: Fawzy Ibrahim <fawzy_ibrhim at yahoo.com> 
Sent: Friday, February 12, 2016 4:27 PM
Subject: Re: [ovirt-users] Host cannot access the Storage Domain(s) <UNKNOWN> attached to the Data Center



Hi, 
Can you make sure the host sees the iscsi luns?  From the host run:
# multipath -ll
If the output is nothing so please follow the below commands:
# iscsiadm -m discovery -t st -p ISCSI_IP
You should get list of iscsi targets
# iscsiadm -m node -l
This will login to all targets and should output list of luns 
# multipath -ll
Try this and update in case the problem still exist



Thanks,
Raz Tamir
Red Hat Isreal
On Feb 10, 2016 20:47, "Fawzy Ibrahim" <fawzy_ibrhim at yahoo.com> wrote:

Dear All;
>
>I have oVirt Engine Version: 3.5.6.2-1.el6 with three nodesrunning standard Centos 6.7 64bit. 
>
>The main data storage storage is on OpenFiler iScsi volume.
>
>After rebooting the three nodes; the main data storage domain is down and all the three hosts are marked as "Non Operational"
>
>When I try to activate any host; I get the below error message:-
> 
>"Host XXXXX cannot access the Storage Domain(s) <UNKNOWN> attached to the Data Center Default. Setting Host state to Non-Operational."
>>
>I have attached the engine and vdsm log.
>
>Best Regards
>Fawzy Ibrahim
> 
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