- Users - oVirt List Archives

oVirt Nested Virtualization
by Luca 'remix_tj' Lorenzetto 06 Mar '17

06 Mar '17

Hello, we're installing a small ovirt cluster for hosting some test environments at work. We're interested in testing VM running hypervisors (i.e ovirt itself or a small openstack deployment). Is there any documentation showing how to enable nested virtualization in ovirt? I've seen that while adding an host to the cluster there is the opportunity to flag "Nested Virtualization" option, but i didn't understand if other packages and configs are required. Our environment is running latest ovirt 4.1 installed with ovirt-node-ng. 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>

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VM Permissions (3.6)
by Alexis HAUSER 06 Mar '17

06 Mar '17

------=_Part_2283923_195487747.1488714679596 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit hi, I'm trying to figure out how to manage VM permissions with ovirt. >From what I've understood, if you add a user to user role in the system preferences, this user can access every VM and resources on the cluster, with the associated permissions; right ? Now, if I want to control who has access to each VM : I musn't add this user to user role from the system tab; but instead add it on each resources (like on each VM) it should access ? Is there another way to manage permissions ? How you guys do personally manage this ? Do you automate it with scripts ? Thanks for you ideas and suggestions (using 3.6) ------=_Part_2283923_195487747.1488714679596 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit <html><body><div style="font-family: times new roman, new york, times, serif; font-size: 12pt; color: #000000"><div>hi, I'm trying to figure out how to manage VM permissions with ovirt.<br></div><div>From what I've understood, if you add a user to user role in the system preferences, this user can access every VM and resources on the cluster, with the associated permissions; right ?<br></div><div>Now, if I want to control who has access to each VM : I musn't add this user to user role from the system tab; but instead add it on each resources (like on each VM) it should access ?<br></div><div><br></div><div>Is there another way to manage permissions ? How you guys do personally manage this ? Do you automate it with scripts ?<br></div><div><br></div><div>Thanks for you ideas and suggestions<br></div><div><br></div><div>(using 3.6)<br></div></div></body></html> ------=_Part_2283923_195487747.1488714679596--

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Ovirt importing VM
by rightkicktech.gmail.com 06 Mar '17

06 Mar '17

------SZR5TSRASD8ALPWG0P8ZQNHBNKKQYO Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi, I am using Virt4=2E1 on top glusterfs=2E I have defined two data domains, one for engine and one for vms=2E Also ex= port and iso domains are on separate dedicated gluster volumes=2E When I try to import a VM from the export domain the VM is imported in the= engine data domain=2E I would expect to be able to select on which data do= main to import it=2E Am I missing sth? Thanx, Alex --=20 Sent from my Android device with K-9 Mail=2E Please excuse my brevity=2E ------SZR5TSRASD8ALPWG0P8ZQNHBNKKQYO Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi,<br> <br> I am using Virt4=2E1 on top glusterfs=2E<br> I have defined two data domains, one for engine and one for vms=2E Also ex= port and iso domains are on separate dedicated gluster volumes=2E<br> <br> When I try to import a VM from the export domain the VM is imported in the= engine data domain=2E I would expect to be able to select on which data do= main to import it=2E Am I missing sth?<br> <br> Thanx,<br> Alex<br> <br> -- <br> Sent from my Android device with K-9 Mail=2E Please excuse my brevity=2E ------SZR5TSRASD8ALPWG0P8ZQNHBNKKQYO--

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Re: [ovirt-users] lvscan on rhv host
by Nir Soffer 06 Mar '17

06 Mar '17

On Mon, Mar 6, 2017 at 1:03 AM, Marcin Kruk <askifyouneed(a)gmail.com> wrote: Please reply to the list, other users may find this discussion valuable. > 1. perfect and clear explanation > 2. Could you explain "These are probably OVF_STORE volumes, used to keep vms > ovs.", what is vms ovs, > and what valuable information is in te ovf file which you extracted? OVF is standard format for describing a VM: https://en.wikipedia.org/wiki/Open_Virtualization_Format All the VM that have a disk on a storage domain are stored in the OVF_STORE disks using OVF format, so you can restore all the VM from storage if you lost your engine database. Or, if you want to move entire storage domain from one setup to another, you can detach the storage domain from one setup, attach to the other setup, and import all the VMs. The OVF is also used by hosted engine to obtain engine vm setup from storage, and start the engine vm after a host is rebooted. > 3. perfect and clear > Thank you > > 2017-03-05 12:32 GMT+01:00 Nir Soffer <nsoffer(a)redhat.com>: >> >> On Sun, Mar 5, 2017 at 10:08 AM, Marcin Kruk <askifyouneed(a)gmail.com> >> wrote: >> > VDSM side, means RHV HOST side, right? >> > I missed LVM tags, so the command: >> > lvs -o vg_name,name,lv_tags is very helpful, thanks. >> > >> > 1. Is it a tool in command line to show: disk ID, alias, atached to >> > fields? >> >> No, you need to extract this info manually. >> >> Here is an example >> >> # lvs -o lv_name,size,attr,tags aed577ea-d1ca-4ebe-af80-f852c7ce59bb >> LV LSize Attr LV Tags >> 91799827-85b8-450d-a521-42de12fa08e6 1.00g -wi-ao---- >> >> IU_db343be2-f709-4835-b1c5-a1bbdb650b2a,MD_8,PU_93331705-46be-4cb8-9dc2-c1559843fd4a >> 93331705-46be-4cb8-9dc2-c1559843fd4a 3.00g -wi-ao---- >> >> IU_239d9e96-ad7d-4a7d-83af-d593877db11b,MD_7,PU_00000000-0000-0000-0000-000000000000 >> dfbf69fc-3371-42d4-8298-415a6ad4244a 128.00m -wi------- >> >> IU_7324cafc-905f-475e-8217-1a919bcca9e9,MD_5,PU_00000000-0000-0000-0000-000000000000 >> ea556b30-e62b-4d66-b832-459a5dd01890 128.00m -wi------- >> >> IU_aab45dbc-c016-4990-b834-ce455bbc4fef,MD_4,PU_00000000-0000-0000-0000-000000000000 >> ids 128.00m -wi-ao---- >> inbox 128.00m -wi-a----- >> leases 2.00g -wi-a----- >> master 1.00g -wi-ao---- >> metadata 512.00m -wi-a----- >> outbox 128.00m -wi-a----- >> xleases 1.00g -wi-a----- >> >> What is dfbf69fc-3371-42d4-8298-415a6ad4244a? >> >> MD_5 means this volume metadata is at offset 5 * 512 in >> 143dc2d0-8e1a-4b95-a306-2a26a7b4832f metadata >> >> # dd if=/dev/aed577ea-d1ca-4ebe-af80-f852c7ce59bb/metadata bs=512 count=1 >> skip=5 >> >> # dd if=/dev/aed577ea-d1ca-4ebe-af80-f852c7ce59bb/metadata bs=512 count=1 >> skip=5 >> DOMAIN=aed577ea-d1ca-4ebe-af80-f852c7ce59bb >> CTIME=1487525999 >> FORMAT=RAW >> DISKTYPE=2 >> LEGALITY=LEGAL >> SIZE=262144 >> VOLTYPE=LEAF >> DESCRIPTION={"Updated":true,"Size":30720,"Last Updated":"Fri Feb 24 >> 20:49:24 EST 2017","Storage >> Domains":[{"uuid":"aed577ea-d1ca-4ebe-af80-f852c7ce59bb"}],"Disk >> Description":"OVF_STORE"} >> IMAGE=7324cafc-905f-475e-8217-1a919bcca9e9 >> PUUID=00000000-0000-0000-0000-000000000000 >> MTIME=0 >> POOL_UUID= >> TYPE=PREALLOCATED >> GEN=0 >> EOF >> 1+0 records in >> 1+0 records out >> 512 bytes (512 B) copied, 0.00146441 s, 350 kB/s >> >> So this is OVF_STORE disk, see bellow >> >> > >> > 2. I found information about metadata, outbox etc volumes, >> > but I can not find info about lvm volumes with 128 MiB size. >> > Are these any metadata volumes? ex: from lvscan: >> > ACTIVE >> > >> > '/dev/b41214a0-4748-47a8-85f2-9ad1e573ab10/57e904c5-3267-4d94-a52c-babb06912d90' >> > [128.00 MiB] inherit' [128.00 MiB] inherit? >> >> These are probably OVF_STORE volumes, used to keep vms ovs. >> >> You can extract the data from these volumes like this: >> >> lvchange -ay >> aed577ea-d1ca-4ebe-af80-f852c7ce59bb/dfbf69fc-3371-42d4-8298-415a6ad4244a >> >> # tar tvf >> /dev/aed577ea-d1ca-4ebe-af80-f852c7ce59bb/dfbf69fc-3371-42d4-8298-415a6ad4244a >> -rw-r--r-- 0/0 138 2017-02-25 03:49 info.json >> -rw-r--r-- 0/0 11068 2017-02-25 03:49 >> 55e347d5-4074-4408-b782-c43011483845.ovf >> -rw-r--r-- 0/0 10306 2017-02-25 03:49 >> bcb03d22-0799-4b0e-bcb3-f69954e6f5eb.ovf >> >> # tar xvf >> /dev/aed577ea-d1ca-4ebe-af80-f852c7ce59bb/dfbf69fc-3371-42d4-8298-415a6ad4244a >> bcb03d22-0799-4b0e-bcb3-f69954e6f5eb.ovf >> bcb03d22-0799-4b0e-bcb3-f69954e6f5eb.ovf >> >> # dd if=bcb03d22-0799-4b0e-bcb3-f69954e6f5eb.ovf bs=512 count=1 >> <?xml version="1.0" encoding="UTF-8"?><ovf:Envelope >> xmlns:ovf="http://schemas.dmtf.org/ovf/envelope/1/" >> >> xmlns:rasd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_ResourceAllocationSet…" >> >> xmlns:vssd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_VirtualSystemSettingD…" >> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" >> ovf:version="4.1.0.0"><References><File >> >> ovf:href="239d9e96-ad7d-4a7d-83af-d593877db11b/93331705-46be-4cb8-9dc2-c1559843fd4a" >> ovf:id="93331705-46be-4cb8-9dc2-c15598431+0 records in >> 1+0 records out >> 512 bytes (512 B) copied, 8.0163e-05 s, 6.4 MB/s >> >> > >> > 3. Are they removed? When, for example, the virtual machine or disk will >> > be >> > deleted ? >> >> Yes, we create an lv when you create a disk or create snapshot, and remove >> them >> when you delete vm, disk, or snapshot. >> >> Nir > >

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Ubuntu VM does not complete reboot cycle without Console Open
by Anantha Raghava 06 Mar '17

06 Mar '17

This is a multi-part message in MIME format. --------------A2448A45784238E495EAEAFE Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Hi, I have been observing that Ubuntu Precise VM, if restarted using a crontab at a given time, stops at the OS / Kernel Selection screen and does not complete the reboot. If we issue the reboot command with Console open, the same command works without any issues and the VM boots properly. This issue happens only with Ubuntu Precise and not with Trusty or Xeniel or even with any of Rehat distributions or CentOS. Interestingly, it doesn't happen with VMWare ESXi. I also read somewhere that this issue is with VDSM 3.6 and it seems to continue with VDSM 4 as well. Any suggestions in this regard. -- Thanks & Regards, Anantha Raghava eXzaTech Consulting And Services Pvt. Ltd. DISCLAIMER: This e-mail communication and any attachments may be privileged and confidential to eXza Technology Consulting & Services, and are intended only for the use of the recipients named above If you are not the addressee you may not copy, forward, disclose or use any part of it. If you have received this message in error, please delete it and all copies from your system and notify the sender immediately by return e-mail. Internet communications cannot be guaranteed to be timely, secure, error or virus-free. The sender does not accept liability for any errors or omissions. Do not print this e-mail unless required. Save Paper & trees. --------------A2448A45784238E495EAEAFE Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit <html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> </head> <body bgcolor="#FFFFFF" text="#000000"> <p><font face="Liberation Serif">Hi,</font></p> <p><font face="Liberation Serif">I have been observing that Ubuntu Precise VM, if restarted using a crontab at a given time, stops at the OS / Kernel Selection screen and does not complete the reboot. If we issue the reboot command with Console open, the same command works without any issues and the VM boots properly. This issue happens only with Ubuntu Precise and not with Trusty or Xeniel or even with any of Rehat distributions or CentOS.<br> </font></p> <p><font face="Liberation Serif">Interestingly, it doesn't happen with VMWare ESXi. <br> </font></p> <p><font face="Liberation Serif">I also read somewhere that this issue is with VDSM 3.6 and it seems to continue with VDSM 4 as well.</font></p> <p><font face="Liberation Serif">Any suggestions in this regard.</font><br> </p> -- <div class="moz-signature"> <p style="margin-bottom: 0cm; line-height: 100%"><font face="Times New Roman, serif">Thanks & Regards,</font></p> <p style="margin-bottom: 0cm; line-height: 100%"><br> </p> <address style="line-height: 100%"><font face="Times New Roman, serif">Anantha Raghava</font></address> <address style="line-height: 100%"><font face="Times New Roman, serif">eXzaTech Consulting And Services Pvt. Ltd.</font></address> <p style="margin-bottom: 0cm; line-height: 100%"><font color="#1f497d"><font face="Calibri, sans-serif"><font style="font-size: 7pt" size="1">DISCLAIMER:<br> This e-mail communication and any attachments may be privileged and confidential to eXza Technology Consulting & Services, and are intended only for the use of the recipients named above If you are not the addressee you may not copy, forward, disclose or use any part of it. If you have received this message in error, please delete it and all copies from your system and notify the sender immediately by return e-mail. Internet communications cannot be guaranteed to be timely, secure, error or virus-free. The sender does not accept liability for any errors or omissions. </font></font></font> </p> <p style="margin-bottom: 0cm; line-height: 100%"><br> </p> <p style="margin-bottom: 0cm; line-height: 100%"><font color="#66cc00"><font face="Times New Roman, serif">Do not print this e-mail unless required. Save Paper & trees.</font></font></p> </div> </body> </html> --------------A2448A45784238E495EAEAFE--

1 0

VM Permissions (3.6)
by Alexis HAUSER 06 Mar '17

06 Mar '17

------=_Part_2376072_2003072310.1488785909633 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit hi, I'm trying to figure out how to manage VM permissions with ovirt. >From what I've understood, if you add a user to user role in the system preferences, this user can access every VM and resources on the cluster, with the associated permissions; right ? Now, if I want to control who has access to each VM : I musn't add this user to user role from the system tab; but instead add it on each resources (like on each VM) it should access ? Is there another way to manage permissions ? How you guys do personally manage this ? Do you automate it with scripts ? Thanks for you ideas and suggestions (using 3.6) ------=_Part_2376072_2003072310.1488785909633 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <html><body><div style=3D"font-family: times new roman, new york, times, se= rif; font-size: 12pt; color: #000000"><div><div style=3D"font-family: times= new roman, new york, times, serif; font-size: 12pt; color: #000000;" data-= mce-style=3D"font-family: times new roman, new york, times, serif; font-siz= e: 12pt; color: #000000;"><div>hi, I'm trying to figure out how to manage V= M permissions with ovirt.</div><div>From what I've understood, if you add a= user to user role in the system preferences, this user can access every VM= and resources on the cluster, with the associated permissions; right ?</di= v><div>Now, if I want to control who has access to each VM : I musn't add t= his user to user role from the system tab; but instead add it on each resou= rces (like on each VM) it should access ?</div><div><br></div><div>Is there= another way to manage permissions ? How you guys do personally manage this= ? Do you automate it with scripts ?</div><div><br></div><div>Thanks for yo= u ideas and suggestions</div><div><br></div><div>(using 3.6)</div></div></d= iv><div><br></div><div><br></div></div></body></html> ------=_Part_2376072_2003072310.1488785909633--

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VMs imported from libvirt have no cdrom device
by Chris Boot 05 Mar '17

05 Mar '17

Hi, I've imported a number of VMs that I previously was running under a self-hosted libvirt configuration. Most of the VMs at the source did not have a cdrom device (but some did) because I just added one as I needed to. Now that the VMs have been imported into oVirt, none of them have a cdrom device. Even booting with the "Attach CD" option doesn't create a cdrom device. I can't see any way to get oVirt to re-create the missing device. Is there a way for me to add these missing devices to my VMs? I'm running oVirt 4.1 on CentOS 7.3.1611 with a hosted engine setup. VMs were migrated from a Debian Stretch machine running libvirt 3.0.0 with qemu 2.8.0. Thanks, Chris -- Chris Boot bootc(a)bootc.net

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Question about injecting ISO images workflow and network configuration
by wodel youchi 05 Mar '17

05 Mar '17

Hi, May be it's a silly question :-) , but how are gays configuring the storage network? Let me explain, if the management network and the storage network are not on the same subnet, if you wish to upload and ISO image on an NFS storage domain, you have to have a route between the two subnets, because the VM engine will try to mount the ISO domain locally to inject the file. PS : For iSCSI ISO domain, I don't know how it will be done, I didn't try it. My questions : - why not use the SPM server for that? - Is it safe to merge the management network with the storage network? - Is the best way to do it is to create a route between the the two subnets? Thanks in advance. Regards. <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> Garanti sans virus. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

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oVirt Hosted Engine Setup fails
by Manuel Luis Aznar 05 Mar '17

05 Mar '17

Hello there, I am having some trouble when deploying an oVirt 4.1 hosted engine installation. When I m just to end the installation and the hosted engine setup script is about to start the Vm engine (appliance) it fails saying "The VM is not powring up". If I double check the service vdsmd i get this error all the time: vdsm root ERROR failed to retrieve Hosted Engine HA info Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/host/api.py", line 231, in _getHaInfo stats = instance.get_all_stats() File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py", line 102, in get_all_stats with broker.connection(self._retries, self._wait): File "/usr/lib64/python2.7/contextlib.py", line 17, in __enter__ return self.gen.next() File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py", line 99, in connection self.connect(retries, wait) File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py", line 78, in connect raise BrokerConnectionError(error_msg) BrokerConnectionError: Failed to connect to broker, the number of errors has exceeded the limit (1) Did anyone have experimented the same problem?¿? Any hint on How to solved it?¿? I have tried several times with clean installations and always getting the same... The host where I am trying to do the installation have CentOS 7... Thanks for all in advance Will be waiting for any hint to see what I am doing wrong... Manuel Luis Aznar

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Re: [ovirt-users] best way to remove SAN lun
by Pavel Gashev 05 Mar '17

05 Mar '17

Please also consider a case when a single iSCSI target has several LUNs and you remove one of them. In this case you should not logout. -----Original Message----- From: <users-bounces(a)ovirt.org> on behalf of Nelson Lameiras <nelson.lameiras(a)lyra-network.com> Date: Friday, 3 March 2017 at 20:55 To: Nir Soffer <nsoffer(a)redhat.com> Cc: users <users(a)ovirt.org> Subject: Re: [ovirt-users] best way to remove SAN lun Hello Nir, I think I was not clear in my explanations, let me try again : we have a oVirt 4.0.5.5 cluster with multiple hosts (centos 7.2). In this cluster, we added a SAN volume (iscsi) a few months ago directly in GUI Later we had to remove a DATA volume (SAN iscsi). Below the steps we have taken : 1- we migrated all disks outside the volume (oVirt) 2- we put volume on maintenance (oVirt) 3- we detach volume (oVirt) 4- we removed/destroyed volume (oVirt) In SAN : 5- we put it offline on SAN 6- we delete it from SAN We thought this would be enough, but later we has a serious incident when log partition went full (partially our fault) : /var/log/messages was continuously logging that it was still trying to reach the SAN volumes (we have since taken care of the issue of log space issue => more aggressive logrotate, etc) The real solution was to add two more steps, using shell in ALL hosts : 4a - logout from SAN : iscsiadm -m node --logout -T iqn.XXXXXXXX 4b - remove iscsi targets : rm -fr /var/lib/iscsi/nodes/iqn.XXXXXXXXX This effectively solved our problem, but was fastidious since we had to do it manually in all hosts (imagine if we had hundreds of hosts...) So my question was : shouldn't it be oVirt job to system "logout" and "remove iscsi targets" automatically when a volume is removed from oVirt ? maybe not, and I'm missing something? cordialement, regards, Nelson LAMEIRAS Ingénieur Systèmes et Réseaux / Systems and Networks engineer Tel: +33 5 32 09 09 70 nelson.lameiras(a)lyra-network.com www.lyra-network.com | www.payzen.eu Lyra Network, 109 rue de l'innovation, 31670 Labège, FRANCE ----- Original Message ----- From: "Nir Soffer" <nsoffer(a)redhat.com> To: "Nelson Lameiras" <nelson.lameiras(a)lyra-network.com> Cc: "Gianluca Cecchi" <gianluca.cecchi(a)gmail.com>, "Adam Litke" <alitke(a)redhat.com>, "users" <users(a)ovirt.org> Sent: Wednesday, February 22, 2017 8:27:26 AM Subject: Re: [ovirt-users] best way to remove SAN lun On Wed, Feb 22, 2017 at 9:03 AM, Nelson Lameiras <nelson.lameiras(a)lyra-network.com> wrote: > Hello, > > Not sure it is the same issue, but we have had a "major" issue recently in our production system when removing a ISCSI volume from oVirt, and then removing it from SAN. What version? OS version? The order must be: 1. remove the LUN from storage domain will be available in next 4.1 release. in older versions you have to remove the storage domain 2. unzone the LUN on the server 3. remove the multipath devices and the paths on the nodes > The issue being that each host was still trying to access regularly to the SAN volume in spite of not being completely removed from oVirt. What do you mean by "not being completely removed"? Who was accessing the volume? > This led to an massive increase of error logs, which filled completely /var/log partition, Which log was full with errors? > which snowballed into crashing vdsm and other nasty consequences. You should have big enough /var/log to avoid such issues. > > Anyway, the solution was to manually logout from SAN (in each host) with iscsiadm and manually remove iscsi targets (again in each host). It was not difficult once the problem was found because currently we only have 3 hosts in this cluster, but I'm wondering what would happen if we had hundreds of hosts ? > > Maybe I'm being naive but shouldn't this be "oVirt job" ? Is there a RFE still waiting to be included on this subject or should I write one ? We have RFE for this here: https://bugzilla.redhat.com/1310330 But you must understand that ovirt does not control your storage server, you are responsible to add devices on the storage server, and remove them. We are only consuming the devices. Even we we provide a way to remove devices on all hosts, you will have to remove the device on the storage server before removing it from hosts. If not, ovirt will find the removed devices again in the next scsi rescan, and we do lot of these to support automatic discovery of new devices or resized devices. Nir > > cordialement, regards, > > > Nelson LAMEIRAS > Ingénieur Systèmes et Réseaux / Systems and Networks engineer > Tel: +33 5 32 09 09 70 > nelson.lameiras(a)lyra-network.com > > www.lyra-network.com | www.payzen.eu > > > > > > Lyra Network, 109 rue de l'innovation, 31670 Labège, FRANCE > > ----- Original Message ----- > From: "Nir Soffer" <nsoffer(a)redhat.com> > To: "Gianluca Cecchi" <gianluca.cecchi(a)gmail.com>, "Adam Litke" <alitke(a)redhat.com> > Cc: "users" <users(a)ovirt.org> > Sent: Tuesday, February 21, 2017 6:32:18 PM > Subject: Re: [ovirt-users] best way to remove SAN lun > > On Tue, Feb 21, 2017 at 7:25 PM, Gianluca Cecchi > <gianluca.cecchi(a)gmail.com> wrote: >> On Tue, Feb 21, 2017 at 6:10 PM, Nir Soffer <nsoffer(a)redhat.com> wrote: >>> >>> This is caused by active lvs on the remove storage domains that were not >>> deactivated during the removal. This is a very old known issue. >>> >>> You have remove the remove device mapper entries - you can see the devices >>> using: >>> >>> dmsetup status >>> >>> Then you can remove the mapping using: >>> >>> dmsetup remove device-name >>> >>> Once you removed the stale lvs, you will be able to remove the multipath >>> device and the underlying paths, and lvm will not complain about read >>> errors. >>> >>> Nir >> >> >> OK Nir, thanks for advising. >> >> So what I run with success on the 2 hosts >> >> [root@ovmsrv05 vdsm]# for dev in $(dmsetup status | grep >> 900b1853--e192--4661--a0f9--7c7c396f6f49 | cut -d ":" -f 1) >> do >> dmsetup remove $dev >> done >> [root@ovmsrv05 vdsm]# >> >> and now I can run >> >> [root@ovmsrv05 vdsm]# multipath -f 3600a0b80002999020000cd3c5501458f >> [root@ovmsrv05 vdsm]# >> >> Also, with related names depending on host, >> >> previous maps to single devices were for example in ovmsrv05: >> >> 3600a0b80002999020000cd3c5501458f dm-4 IBM ,1814 FAStT >> size=2.0T features='2 pg_init_retries 50' hwhandler='1 rdac' wp=rw >> |-+- policy='service-time 0' prio=0 status=enabled >> | |- 0:0:0:2 sdb 8:16 failed undef running >> | `- 1:0:0:2 sdh 8:112 failed undef running >> `-+- policy='service-time 0' prio=0 status=enabled >> |- 0:0:1:2 sdg 8:96 failed undef running >> `- 1:0:1:2 sdn 8:208 failed undef running >> >> And removal of single path devices: >> >> [root@ovmsrv05 root]# for dev in sdb sdh sdg sdn >> do >> echo 1 > /sys/block/${dev}/device/delete >> done >> [root@ovmsrv05 vdsm]# >> >> All clean now... ;-) > > Great! > > I think we should have a script doing all these steps. > > Nir > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users

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