- Users - oVirt List Archives

Some tests results: lustrefs over nfs on VM
by Arman Khalatyan 19 Nov '17

19 Nov '17

Hi, in our environment we got pretty good io performance on VM, with following configuration: lustrebox: /lust mounted on "GATEWAY" over IB GATEWAY: export /lust as nfs4 on 10G interface VM(test.vm): import as NFS over 10G interface [root(a)test.vm <root(a)gans.vm> ~]# dd if=/dev/zero bs=128K count=100000 of=/test/tmp/test.tmp 100000+0 records in 100000+0 records out 13107200000 bytes (13 GB) copied, 20.8402 s, 629 MB/s looks promising for the future deployments. only one problem remains that on heavy io I get some wornings that the vm network is saturated, are there way to configure the bandwidth limits to 10G for the VM Interface?? thank you beforehand, Arman.

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VDSM command GetVmsInfoVDS failed: Missing OVF file from VM
by Алексей Максимов 19 Nov '17

19 Nov '17

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NIC Bonding
by magnus.isaksson＠ilw.se 19 Nov '17

19 Nov '17

----=_RainLoop_715_686258566.1509963308 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Hello!=0AI'm new(-ish) to oVirt and have a question regarding network. = =0A=0A I currently use vmware, the hosts have 4 nic each and connected to= two switches in stack(extreme), i have two vSwitch with two nic each set= up in active/standby, with this i don't have to do anything with the phys= ical switch. =0A So how do i do this setup on oVirt so i don't need to co= nfigure the switches?=0AI know how to bond the cards, but i am afraid of = a switchloop, so i just want to make sure that does not happen.=0A=0ARega= rds=0AMagnus Isaksson ----=_RainLoop_715_686258566.1509963308 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable <!DOCTYPE html><html><head><meta http-equiv=3D"Content-Type" content=3D"t= ext/html; charset=3Dutf-8" /></head><body><div data-html-editor-font-wrap= per=3D"true" style=3D"font-family: arial, sans-serif; font-size: 13px;"> = <signature><signature><p><span display=3D"inline">Hello!<br>I'm new(-ish)= to oVirt and have a question regarding network.</span></p> <p><span disp= lay=3D"inline">I currently use vmware, the hosts have 4 nic each and conn= ected to two switches in stack(extreme), i have two vSwitch with two nic = each setup in active/standby, with this i don't have to do anything with = the physical switch.</span></p> <div><p><span display=3D"inline">So how d= o i do this setup on oVirt so i don't need to configure the switches?<br>= I know how to bond the cards, but i am afraid of a switchloop, so i just = want to make sure that does not happen.</span><br><br>Regards<br>Magnus I= saksson</p></div></signature></signature><br> </div></body></html> ----=_RainLoop_715_686258566.1509963308--

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using oVirt with newer librbd1
by Matthias Leopold 18 Nov '17

18 Nov '17

Hi, we want to use a Ceph cluster as the main storage for our oVirt 4.1.x datacenter. We successfully tested using librbd1-12.2.1-0.el7 package from Ceph repos instead of the standard librbd1-0.94.5-2.el7 from CentOS 7 in an oVirt virtualization node. Are there any caveats when doing so? Will this work in oVirt 4.2? thx matthias

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Snapshot or not?
by Demeter Tibor 17 Nov '17

17 Nov '17

--=_356f090b-8288-4845-8f3a-5ab9dcf0b36a Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Dear Users, I have a disk of a vm, that is have a snapshot. It is very interesting, because there are two other disk of that VM, but there are no snapshots of them. I found this while I've try to migrate a storage-domain between two datacenter. Because, I didn't import that vm from the storage domain, I did an another similar VM with exactly same sized thin-provisioned disks. I have renamed, copied to here my originals. The VM started successfully, but the disk that contain a snapshot did not recognized by the os. I can see the whole disk as raw. (disk id, format in ovirt, filenames of images, etc) . I think ovirt don't know that is a snapshotted image and use as raw. Is it possible? I don't see any snapshot in snapshots. Also I have try to list snapshots with qemu-img info and qemu-img snapshot -l , but it does not see any snapshots in the image. Really, I don't know how is possible this. [root@storage1 8d815282-6957-41c0-bb3e-6c8f4a23a64b]# qemu-img info 5974fd33-af4c-4e3b-aadb-bece6054eb6b image: 5974fd33-af4c-4e3b-aadb-bece6054eb6b file format: qcow2 virtual size: 13T (13958643712000 bytes) disk size: 12T cluster_size: 65536 backing file: ../8d815282-6957-41c0-bb3e-6c8f4a23a64b/723ad5aa-02f6-4067-ac75-0ce0a761627f backing file format: raw Format specific information: compat: 0.10 [root@storage1 8d815282-6957-41c0-bb3e-6c8f4a23a64b]# qemu-img info 723ad5aa-02f6-4067-ac75-0ce0a761627f image: 723ad5aa-02f6-4067-ac75-0ce0a761627f file format: raw virtual size: 2.0T (2147483648000 bytes) disk size: 244G [root@storage1 8d815282-6957-41c0-bb3e-6c8f4a23a64b]# ll total 13096987560 -rw-rw----. 1 36 36 13149448896512 Nov 13 13:42 5974fd33-af4c-4e3b-aadb-bece6054eb6b -rw-rw----. 1 36 36 1048576 Nov 13 19:34 5974fd33-af4c-4e3b-aadb-bece6054eb6b.lease -rw-r--r--. 1 36 36 262 Nov 13 19:54 5974fd33-af4c-4e3b-aadb-bece6054eb6b.meta -rw-rw----. 1 36 36 2147483648000 Jul 8 2016 723ad5aa-02f6-4067-ac75-0ce0a761627f -rw-rw----. 1 36 36 1048576 Jul 7 2016 723ad5aa-02f6-4067-ac75-0ce0a761627f.lease -rw-r--r--. 1 36 36 335 Nov 13 19:52 723ad5aa-02f6-4067-ac75-0ce0a761627f.meta qemu-img snapshot -l 5974fd33-af4c-4e3b-aadb-bece6054eb6b (nothing) Because it is a very big (13 TB) disk I can't migrate to an another image, because I don't have enough free space. So I just would like to use it in ovirt like in the past. I have a very old ovirt (3.5) How can I use this disk? Thanks in advance, Regards, Tibor --=_356f090b-8288-4845-8f3a-5ab9dcf0b36a Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <html><body><div style=3D"font-family: arial, helvetica, sans-serif; font-s= ize: 12pt; color: #000000"><div>Dear Users,</div><div><br data-mce-bogus=3D= "1"></div><div>I have a disk of a vm, that is have a snapshot. It is very i= nteresting, because there are two other disk of that VM, but there are no s= napshots of them.</div><div>I found this while I've try to migrate a storag= e-domain between two datacenter. </div><div>Because, I didn't import t= hat vm from the storage domain, I did an another similar VM with exactly sa= me sized thin-provisioned disks. I have renamed, copied to here my original= s. </div><div><br data-mce-bogus=3D"1"></div><div>The VM started succe= ssfully, but the disk that contain a snapshot did not recognized by the os.= I can see the whole disk as raw. (disk id, format in ovirt, filenames of i= mages, etc) . I think ovirt don't know that is a snapshotted image and use = as raw. Is it possible?</div><div>I don't see any snapshot in snapshots. Al= so I have try to list snapshots with qemu-img info and qemu-img snapshot -l= , but it does not see any snapshots in the image.</div><div><br data-mce-b= ogus=3D"1"></div><div>Really, I don't know how is possible this.</div><div>= <br data-mce-bogus=3D"1"></div><div><div>[root@storage1 8d815282-6957-41c0-= bb3e-6c8f4a23a64b]# qemu-img info 5974fd33-af4c-4e3b-aadb-bece6054eb6b</div= ><div>image: 5974fd33-af4c-4e3b-aadb-bece6054eb6b</div><div>file format: qc= ow2</div><div>virtual size: 13T (13958643712000 bytes)</div><div>disk size:= 12T</div><div>cluster_size: 65536</div><div>backing file: ../8d815282-6957= -41c0-bb3e-6c8f4a23a64b/723ad5aa-02f6-4067-ac75-0ce0a761627f</div><div>back= ing file format: raw</div><div>Format specific information:</div><div>&nbsp= ;   compat: 0.10</div></div><div><div><div><br data-mce-bogus=3D"1"></= div><div>[root@storage1 8d815282-6957-41c0-bb3e-6c8f4a23a64b]# qemu-img inf= o 723ad5aa-02f6-4067-ac75-0ce0a761627f</div><div>image: 723ad5aa-02f6-4067-= ac75-0ce0a761627f</div><div>file format: raw</div><div>virtual size: 2.0T (= 2147483648000 bytes)</div><div>disk size: 244G</div></div><div><br></div><d= iv>[root@storage1 8d815282-6957-41c0-bb3e-6c8f4a23a64b]# ll</div><div>total= 13096987560</div><div>-rw-rw----. 1 36 36 13149448896512 Nov 13 13:42 5974= fd33-af4c-4e3b-aadb-bece6054eb6b</div><div>-rw-rw----. 1 36 36   =     1048576 Nov 13 19:34 5974fd33-af4c-4e3b-aadb-bece6054eb6b.le= ase</div><div>-rw-r--r--. 1 36 36            = 262 Nov 13 19:54 5974fd33-af4c-4e3b-aadb-bece6054eb6b.meta</div><div>-rw-rw= ----. 1 36 36  2147483648000 Jul  8  2016 723ad5aa-02f6-4067= -ac75-0ce0a761627f</div><div>-rw-rw----. 1 36 36       = 1048576 Jul  7  2016 723ad5aa-02f6-4067-ac75-0ce0a761627f.lease<= /div><div>-rw-r--r--. 1 36 36            335 = Nov 13 19:52 723ad5aa-02f6-4067-ac75-0ce0a761627f.meta</div><div><br data-m= ce-bogus=3D"1"></div><div>qemu-img snapshot -l 5974fd33-af4c-4e3b-aadb-bece= 6054eb6b<br data-mce-bogus=3D"1"></div><div><br data-mce-bogus=3D"1"></div>= <div>(nothing)</div><div><br data-mce-bogus=3D"1"></div><div>Because it is = a very big (13 TB) disk I can't migrate to an another image, because I don'= t have enough free space. So I just would like to use it in ovirt like in t= he past. </div><div><br data-mce-bogus=3D"1"></div><div>I have a very = old ovirt (3.5)</div><div><br data-mce-bogus=3D"1"></div><div>How can I use= this disk?</div><div><br data-mce-bogus=3D"1"></div><div>Thanks in advance= ,</div><div><br data-mce-bogus=3D"1"></div><div>Regards,</div></div><div><b= r></div><div data-marker=3D"__SIG_PRE__"><p style=3D"font-family: 'Times Ne= w Roman'; font-size: medium; margin: 0px;" data-mce-style=3D"font-family: '= Times New Roman'; font-size: medium; margin: 0px;"><strong><span style=3D"f= ont-size: medium;" data-mce-style=3D"font-size: medium;"><span style=3D"col= or: #2d67b0;" data-mce-style=3D"color: #2d67b0;"></span></span></strong></p= >Tibor<p></p></div></div></body></html> --=_356f090b-8288-4845-8f3a-5ab9dcf0b36a--

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Enabling libgfapi disk access with oVirt 4.2
by Alessandro De Salvo 17 Nov '17

17 Nov '17

Hi, I'm using the latest 4.2 beta release and want to try the gfapi access, but I'm currently failing to use it. My test setup has an external glusterfs cluster v3.12, not managed by oVirt. The compatibility flag is correctly showing gfapi should be enabled with 4.2: # engine-config -g LibgfApiSupported LibgfApiSupported: false version: 3.6 LibgfApiSupported: false version: 4.0 LibgfApiSupported: false version: 4.1 LibgfApiSupported: true version: 4.2 The data center and cluster have the 4.2 compatibility flags as well. However, when starting a VM with a disk on gluster I can still see the disk is mounted via fuse. Any clue of what I'm still missing? Thanks, Alessandro

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[ANN] oVirt 4.1.8 First Release Candidate is now available
by Lev Veyde 16 Nov '17

16 Nov '17

The oVirt Project is pleased to announce the availability of the First Release Candidate of oVirt 4.1.8, as of November 16th, 2017 This update is the eighth in a series of stabilization updates to the 4.1 series. Starting from 4.1.5 oVirt supports libgfapi [5]. Using libgfapi provides a real performance boost for ovirt when using GlusterFS . Due to a known issue [6], using this will break live storage migration. This is expected to be fixed soon. If you do not use live storage migration you can give it a try. Use [7] for more details on how to enable it. This release is available now for: * Red Hat Enterprise Linux 7.4 or later * CentOS Linux (or similar) 7.4 or later This release supports Hypervisor Hosts running: * Red Hat Enterprise Linux 7.4 or later * CentOS Linux (or similar) 7.4 or later * oVirt Node 4.1 See the release notes draft [3] for installation / upgrade instructions and a list of new features and bugs fixed. Notes: - oVirt Appliance is already available - oVirt Live is already available[4] - oVirt Node is already available[4] Additional Resources: * Read more about the oVirt 4.1.8 release highlights: http://www.ovirt.org/release/4.1. <http://www.ovirt.org/release/4.1.8/>8 <http://www.ovirt.org/release/4.1.8/>/ <http://www.ovirt.org/release/4.1.8/> * Get more oVirt Project updates on Twitter: https://twitter.com/ovirt * Check out the latest project news on the oVirt blog: http://www.ovirt.org/blog/ [1] https://www.ovirt.org/community/ [2] https://bugzilla.redhat.com/enter_bug.cgi?classification=oVirt [3] http://www.ovirt.org/release/4.1. <http://www.ovirt.org/release/4.1.8/>8 <http://www.ovirt.org/release/4.1.8/>/ <http://www.ovirt.org/release/4.1.8/> [4] http://resources.ovirt.org/pub/ovirt-4.1-pre/iso/ [5] http://staged-gluster-docs.readthedocs.io/en/release3.7.0beta1/Features/lib… [6] https://bugzilla.redhat.com/show_bug.cgi?id=1306562 [7] http://www.ovirt.org/develop/release-management/features/storage/glusterfs-… -- Lev Veyde Software Engineer, RHCE | RHCVA | MCITP Red Hat Israel <https://www.redhat.com> lev(a)redhat.com | lveyde(a)redhat.com <https://red.ht/sig> TRIED. TESTED. TRUSTED. <https://redhat.com/trusted>

1 0

Are the external leases helping on MasterDomain failure?
by Arman Khalatyan 16 Nov '17

16 Nov '17

Hi, Is this document still valid? https://www.ovirt.org/develop/release-management/features/storage/vm-leases/ If yes, I have a n question concerning the local SSD leases: If the HA leases are going to the local host ssd storage, then due to the Master Domain failure the HA will continue to run? Or in which scenario external leases are helping to keep HA VM up and running? thanks, Arman.

1 0

Migration from Redhat Virtualization Manager 2.2 to Ovirt 4.1
by Julio Cesar Bustamante 16 Nov '17

16 Nov '17

Hi there, I have to migrate from Red Hat Virtualization Manager 2.2 to Ovirt 4.1. But I have a question, is it possible configure a Ovirt manager and a Ovirt Host with and a 2Tb sata disk and virtualize two o more virtual machine on this Ovirt host ? What do you recommed ? -- Julio Cesar Bustamante.

2 1

Unable to attach ISO images
by Rudi Ahlers 16 Nov '17

16 Nov '17

Hi, I have setup oVirt Engine Version: 4.1.7.6-1.el7.centos with Hosted-engine, with a node Gluster cluster. When attempting to upload ISO images, the "Attach ISO" button is greyd out. How do I fix this? [image: Inline image 1] -- Kind Regards Rudi Ahlers Website: http://www.rudiahlers.co.za

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