- Users - oVirt List Archives

3.6 InClusterUpgrade
by Kapetanakis Giannis 27 Oct '17

27 Oct '17

Hi, I'm in the process of upgrading to 4.1 from 3.6.7 (centos 6) The default cluster runs in 3.5 compatibility mode. I cannot add a new Centos 7 host: 2017-10-23 13:50:08,359 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (DefaultQuartzScheduler_Worker-40) [6a0dd9df] Correlation ID: 6a0dd9df, Job ID: e570c94b-bbd8-486b-bb93-3d28fb905bb3, Call Stack: null, Custom Event ID: -1, Message: Host v5 is compatible with versions (3.6,4.0,4.1) and cannot join Cluster Default which is set to version 3.5. I'm following https://www.ovirt.org/feature/inclusterupgrade/ for upgrading. I've set engine-config -s CheckMixedRhelVersions=false --cver=3.5 restarted and set Scheduling policy InClusterUpgrade Any recommendations how to proceed without shutting down all VMs? I also want to avoid creating a new cluster with 3.6 version cause then I will have to shutdown all VMs again. Thanks G ps. The steps I had in mind were: upgrade serially hosts to Centos 7 migrate VMs there backup-restore engine to new Centos 7 machine

2 2

ovirtmgmt network security
by Istvan Buki 26 Oct '17

26 Oct '17

Hello ovirt experts, I'm totally new to ovirt and trying to learn as fast as I can.So, please bear with me and my possibly stupid questions. Sorry if my questions have been answered already, but please point me to the place where I can find the answers. I've setup ovirt 4.1.6 and created a first VM that I want to expose in a DMZ. I attached a dedicated NIC to the VM using passthrough which is connected to the DMZ network. This is all working as expected. Now,I'm wondering what to do about the ovirtmgmt interface. Obviously, in case the security of the VM is compromised and someone get unautorized access to it I do not want the attacker to have access to my internal network through the ovirtmgmt interface. The most secure solution would be to remove that ovirtmgmt interface but then I loose management functionalities. Can you suggest the possible solutions to protect the ovirtmgmt network from unwanted access? Thanks for your answers Istvan

2 1

Re: [ovirt-users] Storage Performance
by Bryan Sockel 26 Oct '17

26 Oct '17

My server load is pretty light. Currently there is no more than 15-20 VM's running on my ovirt config. Attached are performance testing results on the local host and from a windows box. I have also attached my gluster volume configuration. There seems to be a significant performance loss between server performance and guest performance. Not sure if it is related to my limited bandwidth, mismatched server hardware or something else. When not performing any major disk intensive activities system typically runs at less than 10 MiB/s. Network activity about 100 Mbps. Does anyone know if there is any sort of best practices document when it comes to hardware setup for gluster? Specifically related to hardware raid vs JBOD, stripe size, brick configuration etc. Thanks Bryan -----Original Message----- From: Juan Pablo <pablo.localhost(a)gmail.com> To: Bryan Sockel <Bryan.Sockel(a)altn.com> Cc: "users(a)ovirt.org" <users(a)ovirt.org> Date: Thu, 26 Oct 2017 09:59:16 -0300 Subject: Re: [ovirt-users] Storage Performance Hi, can you check IOPS? and state # of VM's ? do : iostat -x 1 for a while =) Isnt RAID discouraged ? AFAIK gluster likes JBOD, am I wrong? regards, JP 2017-10-25 12:05 GMT-03:00 Bryan Sockel <Bryan.Sockel(a)altn.com>: Have a question in regards to storage performance. I have a gluster replica 3 volume that we are testing for performance. In my current configuration is 1 server has 16X1.2TB( 10K 2.5 Inch) drives configured in Raid 10 with a 256k stripe. My 2nd server is configured with 4X6TB (3.5 Inch Drives) configured Raid 10 with a 256k stripe. Each server is configured with 802.3 Bond (4X1GB) network links. Each server is configured with write-back on the raid controller. I am seeing a lot of network usage (solid 3 Gbps) when i perform file copies on the vm attached to that gluster volume, But i see spikes on the disk io when watching the dashboard through the cockpit interface. I spikes are up to 1.5 Gbps, but i would say the average through put is maybe 256 Mbps. Is this to be expected, or should it be a solid activity in the graphs for disk IO. Is it better to use a 256K stripe or a 512 strip on the hardware raid configuration? Eventually i plan on having the hardware match up for better performance. Thanks Bryan _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users

2 1

Storage Performance
by Bryan Sockel 26 Oct '17

26 Oct '17

Have a question in regards to storage performance. I have a gluster replica 3 volume that we are testing for performance. In my current configuration is 1 server has 16X1.2TB( 10K 2.5 Inch) drives configured in Raid 10 with a 256k stripe. My 2nd server is configured with 4X6TB (3.5 Inch Drives) configured Raid 10 with a 256k stripe. Each server is configured with 802.3 Bond (4X1GB) network links. Each server is configured with write-back on the raid controller. I am seeing a lot of network usage (solid 3 Gbps) when i perform file copies on the vm attached to that gluster volume, But i see spikes on the disk io when watching the dashboard through the cockpit interface. I spikes are up to 1.5 Gbps, but i would say the average through put is maybe 256 Mbps. Is this to be expected, or should it be a solid activity in the graphs for disk IO. Is it better to use a 256K stripe or a 512 strip on the hardware raid configuration? Eventually i plan on having the hardware match up for better performance. Thanks Bryan

3 2

Re: [ovirt-users] Bad volume specification after hung migration
by Michal Skrivanek 26 Oct '17

26 Oct '17

--Apple-Mail=_7EF46EB5-FF10-4695-889D-DC90FC772541 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 > On 26 Oct 2017, at 12:32, Roberto Nunin <robnunin(a)gmail.com> wrote: >=20 > Hi Michael >=20 > By frozen I mean the action to put host in maintenance while some VM = were running on it. > This action wasn't completed after more than one hour. ok, and was the problem in this last VM not finishing the migration? Was = it migrating at all? If yes, what was the progress in UI, any failures? = There are various timeouts which should have been triggered, so if they = were not triggered it would indeed point to some internal issue. Would = be great to attach source and destination vdsm.log > Thinking that shutting down the VM could help, I've done it. Looking = at results, not. What was the result? Did it fail to shut down? Did you use Power Off to = force immediate shutdown? If it was migrating, did you try to cancel the = migration first? >=20 > Yes, I've restarted the ovirt-engine service, I've still not restarted = the hosted-engine VM. well, it=E2=80=99s not only a universal =E2=80=9Cfix=E2=80=9D of various = things, sometimes it does more harm than benefit too. Logs would be = helpful. > Hosts still not restarted. Do you think can help ? hard to say. Either way please salvage logs first >=20 > Obviously we will migrate, this activities are enabling us to have = redundancy at the storage level, then we will migrate to 4.1.x great:) Thanks, michal >=20 > Thanks >=20 > 2017-10-26 12:26 GMT+02:00 Michal Skrivanek = <michal.skrivanek(a)redhat.com <mailto:michal.skrivanek@redhat.com>>: >=20 >> On 26 Oct 2017, at 10:20, Roberto Nunin <robnunin(a)gmail.com = <mailto:robnunin@gmail.com>> wrote: >>=20 >> We are running 4.0.1.1-1.el7.centos >=20 > Hi, > any reason not to upgrade to 4.1? >=20 >>=20 >> After a frozen migration attempt, we have two VM that after shutdown, = are not anymore able to be started up again. >=20 > what do you mean by frozen? Are you talking about "VM live migration" = or =E2=80=9Clive storage migration=E2=80=9D? > How exactly did you resolve that situation, you only shut down those = VMs? No other troubleshooting steps, e.g. restarting engine, hosts, = things like that? >=20 > Thanks, > michal >>=20 >> Message returned is : >>=20 >> Bad volume specification {'index': '0', u'domainID': = u'731d95a9-61a7-4c7a-813b-fb1c3dde47ea', 'reqsize': '0', u'format': = u'cow', u'optional': u'false', u'address': {u'function': u'0x0', u'bus': = u'0x00', u'domain': u'0x0000', u'type': u'pci', u'slot': u'0x05'}, = u'volumeID': u'cffc70ff-ed72-46ef-a369-4be95de72260', 'apparentsize': = '3221225472', u'imageID': u'3fe5a849-bcc2-42d3-93c5aca4c504515b', = u'specParams': {}, u'readonly': u'false', u'iface': u'virtio', = u'deviceId': u'3fe5a849bcc2-42d3-93c5-aca4c504515b', 'truesize': = '3221225472', u'poolID': u'00000001-0001-0001-0001-0000000001ec', = u'device': u'disk', u'shared': u'false', u'propagateErrors': = u'off',u'type':u'disk'} >>=20 >> Probably this is caused by a wrong pointer into the database that = still refer to the migration image-id. >>=20 >> If we search within all_disks view, we can find that parentid field = isn't 00000000-0000-0000-0000-000000000000 like all other running vm, = but it has a value: >>=20 >> vm_names | parentid >> ----------------------+-------------------------------------- >> working01.company.xx | 00000000-0000-0000-0000-000000000000 >> working02.company.xx | 00000000-0000-0000-0000-000000000000 >> working03.company.xx | 00000000-0000-0000-0000-000000000000 >> working04.company.xx | 00000000-0000-0000-0000-000000000000 >> broken001.company.xx | 30533842-2c83-4d0e-95d2-48162dbe23bd = <<<<<<<<< >> working05.company.xx | 00000000-0000-0000-0000-000000000000 >>=20 >>=20 >> How we can recover from this ? >>=20 >> Thanks in advance >> Regards, >>=20 >> --=20 >> Robert=E2=80=8Bo=E2=80=8B >>=20 >>=20 >>=20 >> _______________________________________________ >> Users mailing list >> Users(a)ovirt.org <mailto:Users@ovirt.org> >> http://lists.ovirt.org/mailman/listinfo/users = <http://lists.ovirt.org/mailman/listinfo/users> >=20 >=20 >=20 >=20 > --=20 > Roberto >=20 >=20 >=20 --Apple-Mail=_7EF46EB5-FF10-4695-889D-DC90FC772541 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 <html><head><meta http-equiv=3D"Content-Type" content=3D"text/html = charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; = -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" = class=3D""><br class=3D""><div><blockquote type=3D"cite" class=3D""><div = class=3D"">On 26 Oct 2017, at 12:32, Roberto Nunin <<a = href=3D"mailto:robnunin@gmail.com" class=3D"">robnunin(a)gmail.com</a>> = wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><div = dir=3D"ltr" class=3D""><div class=3D"gmail_default" style=3D"">Hi = Michael</div><div class=3D"gmail_default" style=3D""><br = class=3D""></div><div class=3D"gmail_default" style=3D"">By frozen I = mean the action to put host in maintenance while some VM were running on = it.</div><div class=3D"gmail_default" style=3D"">This action wasn't = completed after more than one = hour.</div></div></div></blockquote><div><br class=3D""></div>ok, and = was the problem in this last VM not finishing the migration? Was it = migrating at all? If yes, what was the progress in UI, any failures? = There are various timeouts which should have been triggered, so if they = were not triggered it would indeed point to some internal issue. Would = be great to attach source and destination vdsm.log</div><div><br = class=3D""><blockquote type=3D"cite" class=3D""><div class=3D""><div = dir=3D"ltr" class=3D""><div class=3D"gmail_default" style=3D"">Thinking = that shutting down the VM could help, I've done it. Looking at results, = not.</div></div></div></blockquote><div><br class=3D""></div>What was = the result? Did it fail to shut down? Did you use Power Off to force = immediate shutdown? If it was migrating, did you try to cancel the = migration first?</div><div><br class=3D""><blockquote type=3D"cite" = class=3D""><div class=3D""><div dir=3D"ltr" class=3D""><div = class=3D"gmail_default" style=3D""><br class=3D""></div><div = class=3D"gmail_default" style=3D"">Yes, I've restarted the ovirt-engine = service, I've still not restarted the hosted-engine = VM.</div></div></div></blockquote><div><br class=3D""></div>well, it=E2=80= =99s not only a universal =E2=80=9Cfix=E2=80=9D of various things, = sometimes it does more harm than benefit too. Logs would be = helpful.</div><div><br class=3D""><blockquote type=3D"cite" = class=3D""><div class=3D""><div dir=3D"ltr" class=3D""><div = class=3D"gmail_default" style=3D"">Hosts still not restarted. Do you = think can help ?</div></div></div></blockquote><div><br = class=3D""></div>hard to say. Either way please salvage logs = first</div><div><br class=3D""><blockquote type=3D"cite" class=3D""><div = class=3D""><div dir=3D"ltr" class=3D""><div class=3D"gmail_default" = style=3D""><br class=3D""></div><div class=3D"gmail_default" = style=3D"">Obviously we will migrate, this activities are enabling us to = have redundancy at the storage level, then we will migrate to = 4.1.x</div></div></div></blockquote><div><br = class=3D""></div>great:)</div><div><br = class=3D""></div><div>Thanks,</div><div>michal</div><div><br = class=3D""><blockquote type=3D"cite" class=3D""><div class=3D""><div = dir=3D"ltr" class=3D""><div class=3D"gmail_default" style=3D""><br = class=3D""></div><div class=3D"gmail_default" style=3D"">Thanks</div><div = class=3D"gmail_extra"><br class=3D""><div class=3D"gmail_quote">2017-10-26= 12:26 GMT+02:00 Michal Skrivanek <span dir=3D"ltr" class=3D""><<a = href=3D"mailto:michal.skrivanek@redhat.com" target=3D"_blank" = class=3D"">michal.skrivanek(a)redhat.com</a>></span>:<br = class=3D""><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 = .8ex;border-left:1px #ccc solid;padding-left:1ex"><div = style=3D"word-wrap:break-word" class=3D""><br class=3D""><div = class=3D""><blockquote type=3D"cite" class=3D""><div class=3D"">On 26 = Oct 2017, at 10:20, Roberto Nunin <<a = href=3D"mailto:robnunin@gmail.com" target=3D"_blank" = class=3D"">robnunin(a)gmail.com</a>> wrote:</div><br = class=3D"m_-7560322293096975458Apple-interchange-newline"><div = class=3D""><div dir=3D"ltr" class=3D""><div class=3D"">We are = running<span style=3D"font-size:large" class=3D""> <span = style=3D"font-family:'Arial Unicode = MS',Arial,sans-serif;text-align:-webkit-center;font-size:small" = class=3D"">4.0.1.1-1.el7.centos</span></span></div></div></div></blockquot= e><div class=3D""><br class=3D""></div>Hi,</div><div class=3D"">any = reason not to upgrade to 4.1?</div><div class=3D""><span class=3D""><br = class=3D""><blockquote type=3D"cite" class=3D""><div class=3D""><div = dir=3D"ltr" class=3D""><div style=3D"font-size:large" class=3D""><span = style=3D"font-family:'Arial Unicode = MS',Arial,sans-serif;text-align:-webkit-center;font-size:small" = class=3D""><br class=3D""></span></div><div style=3D"font-size:large" = class=3D""><span style=3D"font-family:'Arial Unicode = MS',Arial,sans-serif;text-align:-webkit-center;font-size:small" = class=3D"">After a frozen migration attempt, we have two VM that after = shutdown, are not anymore able to be started up = again.</span></div></div></div></blockquote><div class=3D""><br = class=3D""></div></span>what do you mean by frozen? Are you talking = about "VM live migration" or =E2=80=9Clive storage = migration=E2=80=9D?</div><div class=3D"">How exactly did you resolve = that situation, you only shut down those VMs? No other troubleshooting = steps, e.g. restarting engine, hosts, things like that?</div><div = class=3D""><br class=3D""></div><div class=3D"">Thanks,</div><div = class=3D"">michal</div><div class=3D""><blockquote type=3D"cite" = class=3D""><div class=3D""><span class=3D""><div dir=3D"ltr" = class=3D""><div style=3D"font-size:large" class=3D""><span = style=3D"font-family:'Arial Unicode = MS',Arial,sans-serif;text-align:-webkit-center;font-size:small" = class=3D""><br class=3D""></span></div><div style=3D"font-size:large" = class=3D""><span style=3D"font-family:'Arial Unicode = MS',Arial,sans-serif;text-align:-webkit-center;font-size:small" = class=3D"">Message returned is :</span></div><div = style=3D"font-size:large" class=3D""><span style=3D"font-family:'Arial = Unicode MS',Arial,sans-serif;text-align:-webkit-center;font-size:small" = class=3D""><br class=3D""></span></div><div class=3D""><span = style=3D"font-family:'Arial Unicode = MS',Arial,sans-serif;text-align:-webkit-center" class=3D""><div = style=3D"text-align:left" class=3D"">Bad volume specification {'index': = '0', u'domainID': u'731d95a9-61a7-4c7a-813b-<wbr class=3D"">fb1c3dde47ea',= 'reqsize': '0', u'format': u'cow', u'optional': u'false', u'address': = {u'function': u'0x0', u'bus': u'0x00', u'domain': u'0x0000', u'type': = u'pci', u'slot': u'0x05'}, u'volumeID': u'cffc70ff-ed72-46ef-a369-<wbr = class=3D"">4be95de72260', 'apparentsize': '3221225472', u'imageID': = u'3fe5a849-bcc2-42d3-<wbr class=3D"">93c5aca4c504515b', u'specParams': = {}, u'readonly': u'false', u'iface': u'virtio', u'deviceId': = u'3fe5a849bcc2-42d3-93c5-<wbr class=3D"">aca4c504515b', 'truesize': = '3221225472', u'poolID': u'00000001-0001-0001-0001-<wbr = class=3D"">0000000001ec', u'device': u'disk', u'shared': u'false', = u'propagateErrors': u'off',u'type':u'disk'}</div><div = style=3D"text-align:left;font-size:small" class=3D""><br = class=3D""></div></span></div><div style=3D"font-size:large" = class=3D""><span style=3D"font-family:'Arial Unicode = MS',Arial,sans-serif;text-align:-webkit-center;font-size:small" = class=3D"">Probably this is caused by a wrong pointer into the database = that still refer to the migration image-id.</span></div><div = style=3D"font-size:large" class=3D""><span style=3D"font-family:'Arial = Unicode MS',Arial,sans-serif;text-align:-webkit-center;font-size:small" = class=3D""><br class=3D""></span></div><div class=3D""><span = style=3D"font-size:small;font-family:'Arial Unicode = MS',Arial,sans-serif;text-align:-webkit-center" class=3D"">If we search = within all_disks view, we can find that parentid field = isn't </span><font face=3D"Arial Unicode MS, Arial, sans-serif" = class=3D"">00000000-0000-0000-0000-<wbr class=3D"">000000000000 like all = other running vm, but it has a value:</font></div><div class=3D""><font = face=3D"Arial Unicode MS, Arial, sans-serif" class=3D""><br = class=3D""></font></div><div class=3D""><font class=3D""><div = class=3D""><font face=3D"monospace, monospace" class=3D"">    =    vm_names       |      =          parentid</font></div><div = class=3D""><font face=3D"monospace, monospace" = class=3D"">----------------------+-------<wbr = class=3D"">------------------------------<wbr = class=3D"">-</font></div><div class=3D""><font face=3D"monospace, = monospace" class=3D""> working01.company.xx | = 00000000-0000-0000-0000-<wbr class=3D"">000000000000</font></div><div = class=3D""><font face=3D"monospace, monospace" = class=3D""> working02.company.xx | 00000000-0000-0000-0000-<wbr = class=3D"">000000000000</font></div><div class=3D""><font = face=3D"monospace, monospace" class=3D""> working03.company.xx | = 00000000-0000-0000-0000-<wbr class=3D"">000000000000</font></div><div = class=3D""><font face=3D"monospace, monospace" = class=3D""> working04.company.xx | 00000000-0000-0000-0000-<wbr = class=3D"">000000000000</font></div><div class=3D""><font = face=3D"monospace, monospace" class=3D""> broken001.company.xx | = 30533842-2c83-4d0e-95d2-<wbr class=3D"">48162dbe23bd = <<<<<<<<<</font></div><div class=3D""><font = face=3D"monospace, monospace" class=3D""> working05.company.xx | = 00000000-0000-0000-0000-<wbr class=3D"">000000000000</font></div><div = style=3D"font-family:"Arial Unicode MS",Arial,sans-serif" = class=3D""><br class=3D""></div></font></div><div class=3D""><font = face=3D"Arial Unicode MS, Arial, sans-serif" class=3D""><br = class=3D""></font></div><div class=3D""><font face=3D"Arial Unicode MS, = Arial, sans-serif" class=3D"">How we can recover from this = ?</font></div><div class=3D""><font face=3D"Arial Unicode MS, Arial, = sans-serif" class=3D""><br class=3D""></font></div><div class=3D""><font = face=3D"Arial Unicode MS, Arial, sans-serif" class=3D"">Thanks in = advance</font></div><div class=3D""><font face=3D"Arial Unicode MS, = Arial, sans-serif" class=3D"">Regards,</font></div><div class=3D""><br = class=3D""></div>-- <br class=3D""><div = class=3D"m_-7560322293096975458gmail_signature"><div dir=3D"ltr" = class=3D""><div dir=3D"ltr" class=3D""><font size=3D"4" = class=3D"">Robert<div style=3D"font-size:large;display:inline" = class=3D"">=E2=80=8Bo=E2=80=8B</div><br class=3D""><br = class=3D""></font><span class=3D""><font size=3D"4" class=3D""><br = class=3D""><br class=3D""></font></span></div></div></div> </div></span> ______________________________<wbr class=3D"">_________________<br = class=3D"">Users mailing list<br class=3D""><a = href=3D"mailto:Users@ovirt.org" target=3D"_blank" = class=3D"">Users(a)ovirt.org</a><br class=3D""><a = href=3D"http://lists.ovirt.org/mailman/listinfo/users" target=3D"_blank" = class=3D"">http://lists.ovirt.org/<wbr = class=3D"">mailman/listinfo/users</a><br = class=3D""></div></blockquote></div><br = class=3D""></div></blockquote></div><br class=3D""><br clear=3D"all" = class=3D""><div class=3D""><br class=3D""></div>-- <br class=3D""><div = class=3D"gmail_signature" data-smartmail=3D"gmail_signature"><div = dir=3D"ltr" class=3D""><div dir=3D"ltr" class=3D""><font size=3D"4" = class=3D"">Roberto<br class=3D""><br class=3D""></font><span = class=3D""><font size=3D"4" class=3D""><br class=3D""><br = class=3D""></font></span></div></div></div> </div></div> </div></blockquote></div><br class=3D""></body></html>= --Apple-Mail=_7EF46EB5-FF10-4695-889D-DC90FC772541--

1 0

Bad volume specification after hung migration
by Roberto Nunin 26 Oct '17

26 Oct '17

We are running 4.0.1.1-1.el7.centos After a frozen migration attempt, we have two VM that after shutdown, are not anymore able to be started up again. Message returned is : Bad volume specification {'index': '0', u'domainID': u'731d95a9-61a7-4c7a-813b-fb1c3dde47ea', 'reqsize': '0', u'format': u'cow', u'optional': u'false', u'address': {u'function': u'0x0', u'bus': u'0x00', u'domain': u'0x0000', u'type': u'pci', u'slot': u'0x05'}, u'volumeID': u'cffc70ff-ed72-46ef-a369-4be95de72260', 'apparentsize': '3221225472', u'imageID': u'3fe5a849-bcc2-42d3-93c5aca4c504515b', u'specParams': {}, u'readonly': u'false', u'iface': u'virtio', u'deviceId': u'3fe5a849bcc2-42d3-93c5-aca4c504515b', 'truesize': '3221225472', u'poolID': u'00000001-0001-0001-0001-0000000001ec', u'device': u'disk', u'shared': u'false', u'propagateErrors': u'off',u'type':u'disk'} Probably this is caused by a wrong pointer into the database that still refer to the migration image-id. If we search within all_disks view, we can find that parentid field isn't 00000000-0000-0000-0000-000000000000 like all other running vm, but it has a value: vm_names | parentid ----------------------+-------------------------------------- working01.company.xx | 00000000-0000-0000-0000-000000000000 working02.company.xx | 00000000-0000-0000-0000-000000000000 working03.company.xx | 00000000-0000-0000-0000-000000000000 working04.company.xx | 00000000-0000-0000-0000-000000000000 broken001.company.xx | 30533842-2c83-4d0e-95d2-48162dbe23bd <<<<<<<<< working05.company.xx | 00000000-0000-0000-0000-000000000000 How we can recover from this ? Thanks in advance Regards, -- Robert o

2 1

Change iSCSI target IP address
by Colin Coe 25 Oct '17

25 Oct '17

Hi all Running RHV 4.1.6, I need to move an iSCSI appliance to a new subnet. There are VMs that I need to keep on this appliance. What would be the best way to point RHV at the new IP address? Thanks CC

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direct lun resizing
by Jiří Sléžka 25 Oct '17

25 Oct '17

This is a cryptographically signed message in MIME format. --------------ms010105050605010202080105 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable Hi all, one of our user uses direct lun inside one of his vm. Now he expanded this lun on the disk array side from 500GB to 600GB but this change was not reflected on oVirt nor vm side. How is direct lun resizing handled in oVirt? 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2 3

Problems to log into portal
by Juan Pablo Lorier 25 Oct '17

25 Oct '17

Hi, I'm trying to log into a fresh install (4.1 on centos 7) but though I've set the hostname-ip mapping in /etc/hosts of the server and my desktop, it keep complaining with the error: The client is not authorized to request an authorization. It's required to access the system using FQDN. Engine log shows the same error: ERROR [org.ovirt.engine.core.sso.utils.SsoUtils] (default task-9) [] The client is not authorized to request an authorization. It's required to access the system using FQDN What else should I do to get access? Regards

2 3

Testing ansible playbook against a mock engine?
by Luca 'remix_tj' Lorenzetto 25 Oct '17

25 Oct '17

Hello, i'm planning to create a big standardization playbook for my environment to ensure that all the required configs (networks, hosts, host's nics and networks....) are correctly set up. Since i don't want to test against a running setup, i'd like to spawn a transient one for testing. I already know Lago, but i think is bit overkill for testing an ansible playbook. Is there any tool that creates only an engine instance with some fake hosts configured so i can test the playbook against it? Luca -- "E' assurdo impiegare gli uomini di intelligenza eccellente per fare calcoli che potrebbero essere affidati a chiunque se si usassero delle macchine" Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716) "Internet è la più grande biblioteca del mondo. Ma il problema è che i libri sono tutti sparsi sul pavimento" John Allen Paulos, Matematico (1945-vivente) Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , <lorenzetto.luca(a)gmail.com>

2 1