[ovirt-users] Trouble Connecting ISCSI Storage to Hosted Engine

[Kyle Conti]

I removed CHAP once I started running into issues. I did restart services, host, and vm. 

I ended up blowing the configuration away today as I have a deadline to meet, so I'll be continuing to use Virt-Manager for now. 

I'll be using a test box of mine to work out the kinks of this and will send logs over at that point. 

"The hosted-engine VM is a special VM since it's running the engine that manages your system. It should have its own storage domain since we are preventing a few actions there to avoid blocking the engine while it's working so, in order to avoid preventing some flows on regular VMs, the hosted-engine VM and other VMs should be into distinct storage domains." 

When setting up the domain storage for the initial ovirt setup script, I used an ISCSI connection to my NAS as I knew it had to be separated from the other storage domain. ISCSI to my NAS has not been a problem. 

If you have any suggestions, wonderful. If not, I'll send over logs once I can get to my test setup and we can try to get it to work from that point. I do think Ovirt will be worth it. 

Regards, 

Kyle Conti 
IT Engineer 
Boston Engineering 
Office: 781-314-0753 
kconti at boston-engineering.com 


From: "Simone Tiraboschi" <stirabos at redhat.com> 
To: "Kyle Conti" <kconti at boston-engineering.com> 
Cc: "users" <users at ovirt.org> 
Sent: Wednesday, November 15, 2017 3:29:28 AM 
Subject: Re: [ovirt-users] Trouble Connecting ISCSI Storage to Hosted Engine 



On Tue, Nov 14, 2017 at 3:12 PM, Kyle Conti < kconti at boston-engineering.com > wrote: 



Hello, 

I'm brand new to Ovirt and trying to get my Hosted Engine setup configured with ISCSI storage. I have ~8TB usable storage available on an LVM partition. This storage is on the same server that is hosting the ovirt engine virtual machine. After I use the discovery/sendtargets command via Centos 7 engine vm, it shows the correct IQN. When I use ovirt's storage discovery in GUI, I can see the storage IQN just fine as well, but when I try to connect to it, I get the following: 

"Error while executing action: Failed to login to iSCSI node due to authorization failure" 




Could you please attach vdsm logs from the host for the relevant time frame? 

BQ_BEGIN

Is NFS recommended instead when trying to connect the storage from server host to Ovirt Engine VM? There is nothing in this storage domain yet. This is a brand new setup. 

BQ_END

NFS consumed in loop-back could be problematic, iSCSI and gluster looks as better options if you want to have everything on a single machine. 

BQ_BEGIN

One other thing to note...I have iscsi storage working with a NAS for my ISO storage domain. I don't want to use the NAS for the virtual machine storage domain. What's so different about the Ovirt Engine vm? 

BQ_END

The hosted-engine VM is a special VM since it's running the engine that manages your system. It should have its own storage domain since we are preventing a few actions there to avoid blocking the engine while it's working so, in order to avoid preventing some flows on regular VMs, the hosted-engine VM and other VMs should be into distinct storage domains. 

BQ_BEGIN


Any help would be much appreciated. Please let me know If I'm taking the wrong approach here, or I'm trying to do something that this system is not meant to do. 

Regards, 

KC 

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BQ_END


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