<html><body><div style="font-family: times new roman, new york, times, serif; font-size: 12pt; color: #000000"><div>Hi Paul,<br></div><div><br></div><div>I would like to know the following details:<br></div><div>1) Are the hosts's NICs connected to the storage server located in the same network subnet as the storage server itself?<br></div><div>2) Have you tried to deploy the connection to the storage server using the 'iSCSI multipath' bond that available in RHEV-3.4? <br><br></div><hr id="zwchr"><div style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"Nir Soffer" <nsoffer@redhat.com><br><b>To: </b>"Paul Dyer" <pmdyermms@gmail.com><br><b>Cc: </b>devel@ovirt.org, "Elad Ben Aharon" <ebenahar@redhat.com><br><b>Sent: </b>Sunday, 15 March, 2015 12:54:44 PM<br><b>Subject: </b>Re: [ovirt-devel] adding new paths to iscsi data storage domains<br><div><br></div>Adding Elad who tested this feature lately to add more info.<br><div><br></div>----- Original Message -----<br>> From: "Paul Dyer" <pmdyermms@gmail.com><br>> To: "Nir Soffer" <nsoffer@redhat.com><br>> Cc: devel@ovirt.org<br>> Sent: Friday, March 13, 2015 6:25:05 PM<br>> Subject: Re: [ovirt-devel] adding new paths to iscsi data storage domains<br>> <br>> Nir,<br>> <br>> we have added 2 more nics to each virtualization host. In order to get<br>> this working, I had to add an after_network_setup hook. The shell script<br>> simply does "/sbin/iscsiadm -m node -L all", to get the extra targets<br>> login after reboot.<br>> <br>> I looked in the engine table storage_server_connections and found that only<br>> the iscsi targets selected during the original storage domain create were<br>> present. If ovirt-engine added rows here, then most of the work would<br>> have been done.<br>> <br>> I say mostly, because the Dell MD3200i did not return exactly the correct<br>> portal target values. The device has 2 controllers, with 4 nics each.<br>> Controller 0, ports 0,1,2,3 uses portal target 1. Controller 1, the<br>> ports uses portal target 2. After iscsiadm discovery, the portal targets<br>> for ports 1,2,3 were all 1. Ports 0 had targets 1 and 2, correctly. I<br>> adjusted the values saved on the filesystem, and login/logoff works fine.<br>> <br>> Paul<br>> <br>> <br>> <br>> On Fri, Feb 6, 2015 at 11:57 AM, Paul Dyer <pmdyermms@gmail.com> wrote:<br>> <br>> > First of all, thank you for your time. I must apologize that in this<br>> > install, I am using RHEV 3.4.5. I will try to reproduce this on an ovirt<br>> > install. I just need to create some paths to iscsi targets.<br>> ><br>> > 1. This configuration has 2 physical hosts, Dell PE-R715 servers, with a<br>> > Dell PowerVault MD3200i iSCSI data storage domain. The EM3 nic was the<br>> > original link. EM4 was the new connection to storage.<br>> ><br>> > 2. From the manager interface, I selected Storage tab, then the<br>> > kvm5DataDomain, then edit. From the popup, I added the IP address under<br>> > Discovery Targets, then clicked the Discover button. Then, clicked the<br>> > login arrow on the new targets discovered.<br>> ><br>> > I have attached the engine and vdsm logs. I was working on this at about<br>> > 11:40am Feb 4th.<br>> ><br>> > When setting the host in maintenance mode, then reboot, and Activate, the<br>> > new paths do not get a login.<br>> ><br>> > Thanks,<br>> > Paul<br>> ><br>> ><br>> ><br>> > On Fri, Feb 6, 2015 at 5:38 AM, Nir Soffer <nsoffer@redhat.com> wrote:<br>> ><br>> >> ----- Original Message -----<br>> >> > From: "Paul Dyer" <pmdyermms@gmail.com><br>> >> > To: devel@ovirt.org<br>> >> > Sent: Friday, February 6, 2015 12:20:23 AM<br>> >> > Subject: [ovirt-devel] adding new paths to iscsi data storage domains<br>> >> ><br>> >> > Hi,<br>> >> ><br>> >> > I have been reading the devel list for months now, and would like to<br>> >> ask a<br>> >> > question.<br>> >> ><br>> >> > In version 3.4.5, adding new paths to an existing iSCSI data storage<br>> >> domain<br>> >> > does not work from the manager.<br>> >><br>> >> It works on ovirt 3.5 and master and it should work also in all previous<br>> >> versions.<br>> >><br>> >> Please open a bug for this:<br>> >> 1. Describe the configuration you are modifying<br>> >> 2. Describe the steps you take<br>> >> 3. Include engine log<br>> >> 4. Include vdsm log from the host trying to add new devices<br>> >><br>> >> > I have been able to add the paths with<br>> >> > command line "iscsiadm -m discovery -t st" and "iscsiadm -m node -L<br>> >> all".<br>> >> ><br>> >> > Is there any plan to allow for adding new storage paths after the data<br>> >> domain<br>> >> > has been created?<br>> >> ><br>> >> > Thanks,<br>> >> > Paul<br>> >> ><br>> >> ><br>> >> > --<br>> >> > Paul Dyer,<br>> >> > Mercury Consulting Group, RHCE<br>> >> > 504-302-8750<br>> >> ><br>> >> > _______________________________________________<br>> >> > Devel mailing list<br>> >> > Devel@ovirt.org<br>> >> > http://lists.ovirt.org/mailman/listinfo/devel<br>> >><br>> ><br>> ><br>> ><br>> > --<br>> > Paul Dyer,<br>> > Mercury Consulting Group, RHCE<br>> > 504-302-8750<br>> ><br>> <br>> <br>> <br>> --<br>> Paul Dyer,<br>> Mercury Consulting Group, RHCE<br>> 504-302-8750<br>> <br></div><div><br></div></div></body></html>