February 2018 - Users - oVirt List Archives

Re: [ovirt-users] Import Domain and snapshot issue ... please help !!!
by Enrico Becchetti 18 Feb '18

18 Feb '18

This is a cryptographically signed message in MIME format. --------------ms050607070104000301070509 Content-Type: multipart/alternative; boundary="------------ED6337BCF2BC492470FB68A8" Content-Language: it-IT This is a multi-part message in MIME format. --------------ED6337BCF2BC492470FB68A8 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable =C2=A0 Hi, also you can download them throught these links: https://owncloud.pg.infn.it/index.php/s/QpsTyGxtRTPYRTD https://owncloud.pg.infn.it/index.php/s/ph8pLcABe0nadeb Thanks again !!!! Best Regards Enrico > Il 13/02/2018 14:52, Maor Lipchuk ha scritto: >> >> >> On Tue, Feb 13, 2018 at 3:51 PM, Maor Lipchuk <mlipchuk(a)redhat.com=20 >> <mailto:mlipchuk@redhat.com>> wrote: >> >> >> On Tue, Feb 13, 2018 at 3:42 PM, Enrico Becchetti >> <enrico.becchetti(a)pg.infn.it >> <mailto:enrico.becchetti@pg.infn.it>> wrote: >> >> see the attach files please ... thanks for your attention !!! >> >> >> >> Seems like the engine logs does not contain the entire process, >> can you please share older logs since the import operation? >> >> >> And VDSM logs as well from your host >> >> Best Regards >> Enrico >> >> >> Il 13/02/2018 14:09, Maor Lipchuk ha scritto: >>> >>> >>> On Tue, Feb 13, 2018 at 1:48 PM, Enrico Becchetti >>> <enrico.becchetti(a)pg.infn.it >>> <mailto:enrico.becchetti@pg.infn.it>> wrote: >>> >>> =C2=A0Dear All, >>> I have been using ovirt for a long time with three >>> hypervisors and an external engine running in a centos vm= . >>> >>> This three hypervisors have HBAs and access to fiber >>> channel storage. Until recently I used version 3.5, then >>> I reinstalled everything from scratch and now I have 4.2.= >>> >>> Before formatting everything, I detach the storage data >>> domani (FC) with the virtual machines and reimported it >>> to the new 4.2 and all went well. In >>> this domain there were virtual machines with and without >>> snapshots. >>> >>> Now I have two problems. The first is that if I try to >>> delete a snapshot the process is not end successful and >>> remains hanging and the second problem is that >>> in one case I lost the virtual machine !!! >>> >>> >>> >>> Not sure that I fully understand the scneario.' >>> How was the virtual machine got lost if you only tried to >>> delete a snapshot? >>> >>> >>> So I need your help to kill the three running zombie >>> tasks because with taskcleaner.sh I can't do anything >>> and then I need to know how I can delete the old snapshot= s >>> made with the 3.5 without losing other data or without >>> having new processes that terminate correctly. >>> >>> If you want some log files please let me know. >>> >>> >>> >>> Hi Enrico, >>> >>> Can you please attach the engine and VDSM logs >>> >>> >>> Thank you so much. >>> Best Regards >>> Enrico >>> >>> >>> >>> _______________________________________________ >>> 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 >> ______________________________________________________________= _________ >> >> Enrico Becchetti Servizio di Calcolo e Reti= >> >> Istituto Nazionale di Fisica Nucleare - Sezione di Perugia >> Via Pascoli,c/o Dipartimento di Fisica 06123 Perugia (ITALY) >> Phone:+39 075 5852777 <tel:+39%20075%20585%202777> = Mail: Enrico.Becchetti<at>pg.infn.it <http://pg.infn.it> >> ______________________________________________________________= ________ >> >> >> > > --=20 > _______________________________________________________________________= > > Enrico Becchetti Servizio di Calcolo e Reti > > Istituto Nazionale di Fisica Nucleare - Sezione di Perugia > Via Pascoli,c/o Dipartimento di Fisica 06123 Perugia (ITALY) > Phone:+39 075 5852777 Mail: Enrico.Becchetti<at>pg.infn.it > ______________________________________________________________________ --=20 _______________________________________________________________________ Enrico Becchetti Servizio di Calcolo e Reti Istituto Nazionale di Fisica Nucleare - Sezione di Perugia Via Pascoli,c/o Dipartimento di Fisica 06123 Perugia (ITALY) Phone:+39 075 5852777 Mail: Enrico.Becchetti<at>pg.infn.it ______________________________________________________________________ --------------ED6337BCF2BC492470FB68A8 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <html> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf= -8"> </head> <body text=3D"#000000" bgcolor=3D"#FFFFFF"> =C2=A0 Hi, <div class=3D"moz-cite-prefix">also you can download them throught these<br> links:<br> <br> <a class=3D"moz-txt-link-freetext" href=3D"https://owncloud.pg.infn= =2Eit/index.php/s/QpsTyGxtRTPYRTD">https://owncloud.pg.infn.it/index.php/= s/QpsTyGxtRTPYRTD</a><br> </div> <a class=3D"moz-txt-link-freetext" href=3D"https://owncloud.pg.infn.i= t/index.php/s/ph8pLcABe0nadeb">https://owncloud.pg.infn.it/index.php/s/ph= 8pLcABe0nadeb</a><br> <br> Thanks again !!!!<br> Best Regards<br> Enrico<br> <br> <blockquote type=3D"cite" cite=3D"mid:54306728-1b78-6634-0bcb-26f836cb1cf9@pg.infn.it"> <div class=3D"moz-cite-prefix"> Il 13/02/2018 14:52, Maor Lipchuk h= a scritto:<br> </div> <blockquote type=3D"cite" cite=3D"mid:CAJ1JNOfTOG850gVAznZpC1qfRPU1ws9ow3OGSJUK=3Dk+dVAzjdg@mail.gm= ail.com"> <div dir=3D"ltr"><br> <div class=3D"gmail_extra"><br> <div class=3D"gmail_quote">On Tue, Feb 13, 2018 at 3:51 PM, Maor Lipchuk <span dir=3D"ltr"><<a href=3D"mailto:mlipchuk@redhat.com" target=3D"_blank" moz-do-not-send=3D"true">mlipchuk(a)redhat.com</a>></s= pan> wrote:<br> <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div dir=3D"ltr"> <div class=3D"gmail_extra"><br> <div class=3D"gmail_quote"><span class=3D"">On Tue, F= eb 13, 2018 at 3:42 PM, Enrico Becchetti <span dir=3D"ltr"><<a href=3D"mailto:enrico.becchetti@pg.infn.it" target=3D"_blank" moz-do-not-send=3D"true">en= rico.becchetti(a)pg.infn.it</a>></span> wrote:<br> <blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> <div bgcolor=3D"#FFFFFF"> <div class=3D"m_1867120190031562186gmail-m_-8783= 667902876592593moz-cite-prefix">see the attach files please ... thanks for your attention !!!<br> </div> </div> </blockquote> <div class=3D"gmail_quote"><br> </div> <div class=3D"gmail_quote"><br> </div> </span>Seems like the engine logs does not contain the entire process, can you please share older logs since the import operation?</div> </div> </div> </blockquote> <div><br> </div> <div>And VDSM logs as well from your host</div> <div>=C2=A0</div> <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div dir=3D"ltr"> <div class=3D"gmail_extra"> <div class=3D"gmail_quote"> <div> <div class=3D"h5"> <div>=C2=A0</div> <blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> <div bgcolor=3D"#FFFFFF"> <div class=3D"m_1867120190031562186gmail-m_-87= 83667902876592593moz-cite-prefix"> Best Regards<br> Enrico <div> <div class=3D"m_1867120190031562186gmail-h= 5"><br> <br> Il 13/02/2018 14:09, Maor Lipchuk ha scritto:<br> </div> </div> </div> <div> <div class=3D"m_1867120190031562186gmail-h5"= > <blockquote type=3D"cite"> <div dir=3D"ltr"><br> <div class=3D"gmail_extra"><br> <div class=3D"gmail_quote">On Tue= , Feb 13, 2018 at 1:48 PM, Enrico Becchetti <span dir=3D"ltr"><<a href=3D"mailto:enrico.becch= etti(a)pg.infn.it" target=3D"_blank" moz-do-not-send=3D"true">en= rico.becchetti(a)pg.infn.it</a>></span> wrote:<br> <blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">=C2=A0Dear All,<br> I have been using ovirt for a long time with three hypervisors and an external engine running in a centos vm .<br> <br> This three hypervisors have HBAs and access to fiber channel storage. Until recently I used version 3.5, then I reinstalled everything from scratch and now I have 4.2.<br> <br> Before formatting everything, I detach the storage data domani (FC) with the virtual machines and reimported it to the new 4.2 and all went well. In<br>= this domain there were virtual machines with and without snapshots.<br> <br> Now I have two problems. The first is that if I try to delete a snapshot the process is not end successful and remains hanging and the second problem is that<br> in one case I lost the virtual machine !!!<br> </blockquote> <div><br> </div> <div><br> </div> <div>Not sure that I fully understand the scneario.'</di= v> <div>How was the virtual machine got lost if you only tried to delete a snapshot?</= div> <div>=C2=A0</div> <blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> <br> So I need your help to kill the three running zombie tasks because with taskcleaner.sh I can't do anything and then I need to know how I can delete the old snapshots<br> made with the 3.5 without losing other data or without having new processes that terminate correctly.<br> <br> If you want some log files please let me know.<br> </blockquote> <div><br> </div> <div><br> </div> <div>Hi Enrico,</div> <div><br> </div> <div>Can you please attach the engine and VDSM logs</div> <div>=C2=A0=C2=A0</div> <blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> <br> Thank you so much.<br> Best Regards<span class=3D"m_1867120190031562= 186gmail-m_-8783667902876592593gmail-HOEnZb"><font color=3D"#888888"><br> Enrico<br> <br> <br> </font></span><br> ______________________________<wbr>_________________<br> Users mailing list<br> <a href=3D"mailto:Users@ovirt.= org" target=3D"_blank" moz-do-not-send=3D"true">Us= ers(a)ovirt.org</a><br> <a href=3D"http://lists.ovirt.= org/mailman/listinfo/users" rel=3D"noreferrer" target=3D"_blank" moz-do-not-send=3D"true">ht= tp://lists.ovirt.org/mailman<wbr>/listinfo/users</a><br> <br> </blockquote> </div> <br> </div> </div> </blockquote> <p><br> </p> </div> </div> <span class=3D"m_1867120190031562186gmail-HOEnZ= b"><font color=3D"#888888"> <pre class=3D"m_1867120190031562186gmai= l-m_-8783667902876592593moz-signature" cols=3D"72">--=20 ______________________________<wbr>______________________________<wbr>___= ________ Enrico Becchetti Servizio di Calcolo e Reti Istituto Nazionale di Fisica Nucleare - Sezione di Perugia Via Pascoli,c/o Dipartimento di Fisica 06123 Perugia (ITALY) Phone:<a href=3D"tel:+39%20075%20585%202777" value=3D"+390755852777" targ= et=3D"_blank" moz-do-not-send=3D"true">+39 075 5852777</a> Ma= il: Enrico.Becchetti<at><a href=3D"http://pg.infn.it" target=3D"_bl= ank" moz-do-not-send=3D"true">pg.infn.it</a> ______________________________<wbr>______________________________<wbr>___= _______ </pre> </font></span></div> </blockquote> </div> </div> </div> <br> </div> </div> </blockquote> </div> <br> </div> </div> </blockquote> <p><br> </p> <pre class=3D"moz-signature" cols=3D"72">--=20 _______________________________________________________________________ Enrico Becchetti Servizio di Calcolo e Reti Istituto Nazionale di Fisica Nucleare - Sezione di Perugia Via Pascoli,c/o Dipartimento di Fisica 06123 Perugia (ITALY) Phone:+39 075 5852777 Mail: Enrico.Becchetti<at>pg.infn= =2Eit ______________________________________________________________________ </= pre> </blockquote> <p><br> </p> <pre class=3D"moz-signature" cols=3D"72">--=20 _______________________________________________________________________ Enrico Becchetti Servizio di Calcolo e Reti Istituto Nazionale di Fisica Nucleare - Sezione di Perugia Via Pascoli,c/o Dipartimento di Fisica 06123 Perugia (ITALY) Phone:+39 075 5852777 Mail: Enrico.Becchetti<at>pg.infn= =2Eit ______________________________________________________________________ </= pre> </body> </html> --------------ED6337BCF2BC492470FB68A8-- --------------ms050607070104000301070509 Content-Type: application/pkcs7-signature; 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2 6

database restoration
by Fabrice Bacchella 18 Feb '18

18 Feb '18

I'm running a restoration test and getting the following log generated by engine-backup --mode=restore: pg_restore: [archiver (db)] Error while PROCESSING TOC: pg_restore: [archiver (db)] Error from TOC entry 4274; 0 0 COMMENT EXTENSION plpgsql pg_restore: [archiver (db)] could not execute query: ERROR: must be owner of extension plpgsql Command was: COMMENT ON EXTENSION plpgsql IS 'PL/pgSQL procedural language'; pg_restore: WARNING: no privileges could be revoked for "public" pg_restore: WARNING: no privileges could be revoked for "public" pg_restore: WARNING: no privileges were granted for "public" pg_restore: WARNING: no privileges were granted for "public" WARNING: errors ignored on restore: 1 Do I need to worry, as this error is ignored ?

2 2

Unable to put Host into Maintenance mode
by Mark Steele 16 Feb '18

16 Feb '18

I have a host that is currently reporting down with NO VM's on it or associated with it. However when I attempt to put it into maintenance mode, I get the following error: Host hv-01 cannot change into maintenance mode - not all Vms have been migrated successfully. Consider manual intervention: stopping/migrating Vms: <UNKNOWN> (User: admin) I am running oVirt Engine Version: 3.5.0.1-1.el6 *** *Mark Steele* CIO / VP Technical Operations | TelVue Corporation TelVue - We Share Your Vision 16000 Horizon Way, Suite 100 | Mt. Laurel, NJ 08054 800.885.8886 x128 | msteele(a)telvue.com | http://www.telvue.com twitter: http://twitter.com/telvue | facebook: https://www.facebook.com/telvue

7 11

Username / password for ovirt-shell
by Mark Steele 16 Feb '18

16 Feb '18

Hello, I'm not the original system architect of our Cluster and I'm not able to locate any documentation regarding the username and password for our ovirt-shell CLI. Is there a config file on the HostedEngine that would point me in the right direction? Best regards, *** *Mark Steele* CIO / VP Technical Operations | TelVue Corporation TelVue - We Share Your Vision 16000 Horizon Way, Suite 100 | Mt. Laurel, NJ 08054 800.885.8886 x128 | msteele(a)telvue.com | http://www.telvue.com twitter: http://twitter.com/telvue | facebook: https://www.facebook.com/telvue

1 1

Requirements for basic host
by Mark Steele 16 Feb '18

16 Feb '18

Hello again, I'm building a new host for my cluster and have a quick question about required software for joining the host to my cluster. In my notes from a previous colleague, I am instructed to do the following: yum install http://resources.ovirt.org/pub/yum-repo/ovirt-release35.rpm yum install ovirt-hosted-engine-setup hosted-engine --deploy We already have a HostedEngine running on another server in the cluster - so do I need to install ovirt-hosted-engine-setup and then deploy it for this server to join the cluster and operate properly? As always - thank you for your time. *** *Mark Steele* CIO / VP Technical Operations | TelVue Corporation TelVue - We Share Your Vision 16000 Horizon Way, Suite 100 | Mt. Laurel, NJ 08054 800.885.8886 x128 | msteele(a)telvue.com | http://www.telvue.com twitter: http://twitter.com/telvue | facebook: https://www.facebook.com/telvue

2 2

ERROR - some other host already uses IP ###.###.###.###
by Mark Steele 16 Feb '18

16 Feb '18

Good morning, We had a storage crash early this morning that messed up a couple of our ovirt hosts. Networking seemed to be the biggest issue. I have decided to remove the bridge information in /etc/sysconfig/network-scripts and ip the nics in order to re-import them into my ovirt installation (I have already removed the hosts). One of the NIC's refuses to come up and is generating the following error: ERROR : [/etc/sysconfig/network-scripts/ifup-eth] Error, some other host (0C:C4:7A:5B:11:5C) already uses address ###.###.###.###. When I ARP on this server, I do not see that Mac address - and none of my other hosts are using it either. I'm not sure where to go next other than completely reinstalling Centos on this server and starting over. Ovirt version is oVirt Engine Version: 3.5.0.1-1.el6 OS version is CentOS Linux release 7.4.1708 (Core) Thank you *** *Mark Steele* CIO / VP Technical Operations | TelVue Corporation TelVue - We Share Your Vision 16000 Horizon Way, Suite 100 | Mt. Laurel, NJ 08054 800.885.8886 x128 | msteele(a)telvue.com | http://www.telvue.com twitter: http://twitter.com/telvue | facebook: https://www.facebook.com/telvue

2 2

Internal Server Error while add Permission [cli]
by Thomas Fecke 16 Feb '18

16 Feb '18

--_000_077d1469b6bf4f3c886b50c69af94b2fDR1XEXCH01Besetcorp_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hey dear Community, I work a bit with that ovirt shell. That worked pretty fine but I got some = Problems when I try to add Permission: What I want to do: Add a Role to an VM What I did: add permission --parent-vm-name vm1 --user-id user1 --role-id UserVmCreator Error: status: 500 reason: Internal Server Error detail: <html><head><title>Error</title></head><body>Internal Server Error</body></= html> Any other cli command works fine for me. What am I doing wrong? Thank you ! --_000_077d1469b6bf4f3c886b50c69af94b2fDR1XEXCH01Besetcorp_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micr= osoft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:= //www.w3.org/TR/REC-html40"> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"= > <meta name=3D"Generator" content=3D"Microsoft Word 15 (filtered medium)"> <style></style> </head> <body lang=3D"EN-US" link=3D"#0563C1" vlink=3D"#954F72"> <div class=3D"WordSection1"> <p class=3D"MsoNormal">Hey dear Community,<o:p></o:p></p> <p class=3D"MsoNormal"><o:p> </o:p></p> <p class=3D"MsoNormal">I work a bit with that ovirt shell. That worked pret= ty fine but I got some Problems when I try to add Permission:<o:p></o:p></p= > <p class=3D"MsoNormal"><o:p> </o:p></p> <p class=3D"MsoNormal">What I want to do:<o:p></o:p></p> <p class=3D"MsoNormal">Add a Role to an VM<o:p></o:p></p> <p class=3D"MsoNormal"><o:p> </o:p></p> <p class=3D"MsoNormal">What I did:<o:p></o:p></p> <p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:"Ca= libri Light",sans-serif;mso-fareast-language:EN-GB">add permission --p= arent-vm-name vm1 --user-id user1 --role-id UserVmCreator<o:p></o:p></span>= </p> <p class=3D"MsoNormal"><o:p> </o:p></p> <p class=3D"MsoNormal">Error:<o:p></o:p></p> <p class=3D"MsoNormal">status: 500<o:p></o:p></p> <p class=3D"MsoNormal">  reason: Internal Server Error<o:p></o:p></p> <p class=3D"MsoNormal">  detail:<o:p></o:p></p> <p class=3D"MsoNormal"><html><head><title>Error</title= ></head><body>Internal Server Error</body></html&gt= ;<o:p></o:p></p> <p class=3D"MsoNormal"><o:p> </o:p></p> <p class=3D"MsoNormal">Any other cli command works fine for me. What am I d= oing wrong? Thank you !<o:p></o:p></p> </div> </body> </html> --_000_077d1469b6bf4f3c886b50c69af94b2fDR1XEXCH01Besetcorp_--

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XML error ovirt-4.2.1 release
by Ladislav Humenik 16 Feb '18

16 Feb '18

This is a multi-part message in MIME format. --------------3F038A49E1BAC4879CE7C6F3 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Hello all, we just tested the 4.2.0 release, worked fine so far. Yesterday just updated to the latest 4.2.1 and since then we can not send and receive response; the error has to do with the response to the server: checkContentType(XML_CONTENT_TYPE_RE, "XML", response.getFirstHeader("content-type").getValue()); it seems it is not XML type the error is: throw new Error("Failed to send request", e); Through the web api I can connect and get and see all, but through the SDK it exits. I've tried both 420 and 421 SDKs of ovirt. -- Ladislav Humenik --------------3F038A49E1BAC4879CE7C6F3 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit <html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> </head> <body text="#000000" bgcolor="#FFFFFF"> <p>Hello all,</p> <p><br> </p> <p>we just tested the 4.2.0 release, worked fine so far.</p> <p> Yesterday just updated to the latest 4.2.1 and since then we can not send and receive response; the error has to do with the response to the server:<br> </p> <p> <font face="Arial,sans-serif">checkContentType(XML_CONTENT_TYPE_RE, "XML", response.getFirstHeader("content-type").getValue());</font></p> <p>it seems it is not XML type</p> <p>the error is:</p> <p><span style="color: rgb(68, 68, 68); font-family: -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI", "Segoe UI Emoji", "Segoe UI Symbol", "Meiryo UI"; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); display: inline !important; float: none;"> <font size="+1"> throw new Error("Failed to send request", e);</font></span></p> <p>Through the web api I can connect and get and see all, but through the SDK it exits. I've tried both 420 and 421 SDKs of ovirt.</p> <p><br> </p> <pre class="moz-signature" cols="72">-- Ladislav Humenik</pre> </body> </html> --------------3F038A49E1BAC4879CE7C6F3--

1 0

Partition Trouble on oVirt Node
by Matt Simonsen 16 Feb '18

16 Feb '18

Hello all, This may not be oVirt specific (but it may be) so thank you in advance for any assistance. I have a system installed with oVirt Node Next 4.1.9 that was installed to /dev/sda I had a seperate RAID Volume /dev/sdb that should not have been used, but now that the operating system is loaded I'm struggling to get the device partitioned. I've tried mkfs.ext4 on the device and also pvcreate, with the errors below. I've also rebooted a couple times and tried to disable multipathd. Is multipathd even safe to disable on Node Next? Below are the errors I've received, and thank you again for any tips. [root@node1-g6-h3 ~]# mkfs.ext4 /dev/sdb mke2fs 1.42.9 (28-Dec-2013) /dev/sdb is entire device, not just one partition! Proceed anyway? (y,n) y /dev/sdb is apparently in use by the system; will not make a filesystem here! [root@node1-g6-h3 ~]# gdisk GPT fdisk (gdisk) version 0.8.6 Type device filename, or press <Enter> to exit: /dev/sdb Caution: invalid main GPT header, but valid backup; regenerating main header from backup! Caution! After loading partitions, the CRC doesn't check out! Warning! Main partition table CRC mismatch! Loaded backup partition table instead of main partition table! Warning! One or more CRCs don't match. You should repair the disk! Partition table scan: MBR: not present BSD: not present APM: not present GPT: damaged Found invalid MBR and corrupt GPT. What do you want to do? (Using the GPT MAY permit recovery of GPT data.) 1 - Use current GPT 2 - Create blank GPT Your answer: 2 Command (? for help): n Partition number (1-128, default 1): First sector (34-16952264590, default = 2048) or {+-}size{KMGTP}: Last sector (2048-16952264590, default = 16952264590) or {+-}size{KMGTP}: Current type is 'Linux filesystem' Hex code or GUID (L to show codes, Enter = 8300): 8e00 Changed type of partition to 'Linux LVM' Command (? for help): w Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING PARTITIONS!! Do you want to proceed? (Y/N): y OK; writing new GUID partition table (GPT) to /dev/sdb. The operation has completed successfully. [root@node1-g6-h3 ~]# pvcreate /dev/sdb1 Device /dev/sdb1 not found (or ignored by filtering).

3 2

Virtual networks in oVirt 4.2 and MTU 1500
by Dmitry Semenov 15 Feb '18

15 Feb '18

I have a not big cluster on oVirt 4.2. Each node has a bond, that has several vlans in its turn. I use virtual networks OVN (External Provider -> ovirt-provider-ovn). While testing I have noticed that in virtual network MTU must be less 1500, so my question is may I change something in network or in bond in order everything in virtual network works correctly with MTU 1500? Below link with my settings: https://pastebin.com/F7ssCVFa -- Best regards

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