Hello all, I have a Hosted engine Setup, 2 physical hosts, 1 for virtualization and another for managing OVirt.

I've setup the storage via iSCSI, with 2 sessions tcp: [1] *.*.*.*:3260,1 iqn.1992**************** (non-flash) tcp: [2] *.*.*.*:3260,2 iqn.1992**************** (non-flash) Everything is working as expected until I added a new physical host to the cluster. The new host only establishes 1 iSCSI session. If I add the session manually afterwards: iscsiadm -m node -l I do get both sessions but if I put the host in maintenance it only logs out from the one that the OVirt made. Is there a way to force the new added host to login in the same iscsi targets as the other host?

OVirt Engine Version: 4.0.5.5-1.el7.centos CentOS Linux release 7.3.1611 (Core) Regards, -- Duarte Fernandes Rocha <dfr(a)eurotux.com&gt; _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users

Hi Simone,

Thanks for your reply. Maybe I did not explain myself correctly. > > I have a Hosted engine Setup, 2 physical hosts, 1 for virtualization and > > another for managing OVirt. > > The host that runs the engine VM could also run other VMs at the same time. > On the other side, only if both the hosts could run the engine VM, > ovirt-ha-agent is ensuring HA: HA on a single host is not HA. The engine is installed on a host with no virtualization capabilities, it is only used for managing the host agents.

> > I've setup the storage via iSCSI, with 2 sessions > > > > tcp: [1] *.*.*.*:3260,1 iqn.1992**************** (non-flash) > > > > tcp: [2] *.*.*.*:3260,2 iqn.1992**************** (non-flash) > > > > Everything is working as expected until I added a new physical host to the > > cluster. The new host only establishes 1 iSCSI session. > > > > If I add the session manually afterwards: > > > > iscsiadm -m node -l > > > > I do get both sessions but if I put the host in maintenance it only logs > > out from the one that the OVirt made. > > > > Is there a way to force the new added host to login in the same iscsi > > targets as the other host? > > Deploy it as an hosted-engine host from the webui. The other host is not deployed (which is working properly) as a "hosted-engine", do I need re-deploy it as a "hosted-engine"? I am not using a Self Hosted Engine VM. Sorry for the confusion/mixup, I am new to OVirt. Regards, -- Duarte Fernandes Rocha <dfr(a)eurotux.com&gt;

Hello, For anyone interested this is how I solved the problem. First, please note that as I mentioned earlier the OVirt documentation states that ALL the iscsi sessions/paths must be configured when adding the storage domain: http://www.ovirt.org/documentation/admin-guide/chap-Storage/ Adding iSCSI Storage ... 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. So one way to fix this issue is: 1. Put the Storage domain under maintenance 2. Remove the storage domain from the datacenter (do not wipe/format) 3. Import storage domain using all the iscsi paths Another way that I think is better because it does not involve deleting the storage domain is to use the REST API and/or OVirt Shell. The storage domain must be in maintenance and the iscsi storage connection must exist. The upside is that the storage domain does not have to be deleted and imported which may not be easy if there are VMs using that storage domain. First we need to have the storage domain ID and the storage connection ID (this one I got using the first method on an empty LUN) [oVirt shell (connected)]# list storagedomains id : d591d9f0-..... name : ISO_DOMAIN description: ISO_DOMAIN id : 7d30dff2-..... name : LUN description: ISCSI LUN [oVirt shell (connected)]# list storageconnections id : b793b463-..... id : 65300f39-.... [oVirt shell (connected)]# show storageconnection 65300f39-ac93-423a-9692- 15984f842ae2 id : 65300f39-..... address : ip.addr.x.x port : 3260 target : iqn.1992-04.... type : iscsi username: username With this info make a POST request to the API using curl #!/bin/sh -ex # https://ovirt.addr/ovirt-engine/api/storagedomains/STORAGE-DOMAIN-ID/ storageconnections url="https://ovirt.addr/ovirt-engine/api/storagedomains/521fcfdc-...../ storageconnections" User="admin at internal" password="*********" curl \ --insecure \ --user "${user}:${password}" \ --request POST \ --header "Accept: application/xml" --header "Content-Type: application/xml" \ --data ' <storage_connection id="430ee71d-......"> </storage_connection> ' \ "${url}" If there are easier/simpler ways please let me know =) -- Duarte Fernandes Rocha <dfr(a)eurotux.com&gt; _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users