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Re: [ovirt-users] [ovirt-devel] Feature Page: Mac Pool per DC
by Yevgeny Zaspitsky 28 Apr '14

28 Apr '14

Now for users(a)ovirt.org indeed. ----- Original Message ----- From: "Yevgeny Zaspitsky" <yzaspits(a)redhat.com> To: "Martin Mucha" <mmucha(a)redhat.com> Cc: users(a)ovrit.org, devel(a)ovirt.org Sent: Sunday, April 27, 2014 2:29:46 PM Subject: Re: [ovirt-devel] Feature Page: Mac Pool per DC Martin, I'd like to propose a different approach on how the ranges to be defined and stored. Discussing this feature with Moti raised the alternative UX design: Defining ranges could be added as a left-tab on create DC dialog and a sub-tab on an existing DC. It would be a table of start and end address fields and we can add a calculated # of MACs in the range and/or summary for the DC. Also that will make string parsing unneeded, prevent possible user mistakes in the string format and make possible validating every field of the range on the UI side easier. As you can see on the screenshot you've attached even a single range doesn't fit to the text box. In case of multiple ranges managing them in a single line textbox would be very uncomfortable. A range is an object with at least 2 members (start and end). And we have few of these for each data center. Storing a collection of the objects in a single field in a relational DB seems a bit awkward to me. That has few disadvantages: 1. is not normalized 2. make data validation nearly impossible 3. make querying the data very difficult 4. is restraining our ability to extend the object (e.g. a user might like to give a description to a range) So IMHO a satellite table with the FK to storage_pool would be a more robust design. Best regards, ____________________ Yevgeny Zaspitsky Senior Software Engineer Red Hat Israel ----- Original Message ----- From: "Martin Mucha" <mmucha(a)redhat.com> To: users(a)ovirt.org, devel(a)ovirt.org Sent: Thursday, April 10, 2014 9:59:44 AM Subject: [ovirt-devel] new feature Hi, I'd like to notify you about new feature, which allows to specify distinct MAC pools, currently one per data center. http://www.ovirt.org/Scoped_MacPoolManager any comments/proposals for improvement are very welcomed. Martin. _______________________________________________ Devel mailing list Devel(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/devel _______________________________________________ Devel mailing list Devel(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/devel

5 9

Add a Direct Lun via rest API (Oivrt 3.3.5)
by Gary Lloyd 28 Apr '14

28 Apr '14

Hello I was just wondering if anyone would be able to help me figure out if there is a way to login to an ISCSI target (EqualLogic) and add its associated volume as a Direct LUN via the REST api. I have figured out how to add an existing Direct LUN to a vm. I have created a volume on the SAN and then I am attempting to upload some xml to the API: curl -v -u 'admin@internal:mypass' -H "Content-type: application/xml" -d @disk.xml https://ovirt-test/disks/ --insecure cat disk.xml <disk> <alias>direct_lun</alias> <interface>virtio</interface> <format>raw</format> <lunStorage> <type>iscsi</type> <logical_unit> <address>10.0.0.1</address> <port>3260</port> <target>iqn.2001-05.com.equallogic:0-1cb196-cff1c713e-e2a004dfcc65357b-dev-directlun</target> </logical_unit> </lunStorage> </disk> At the moment the API is returning with a HTTP 400: <fault> <reason>Incomplete parameters</reason> <detail>Disk [provisionedSize|size] required for add</detail> </fault> Is it possible to achieve my goal via the API ? Thanks *Gary Lloyd* ---------------------------------- IT Services Keele University -----------------------------------

2 1

Using Virtio-SCSI passthough on SCSI - Devices
by Daniel Helgenberger 28 Apr '14

28 Apr '14

--=-YX/fG1gxstd3trJ7hutY Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, does anyone have an idea on how to accomplish this? In my particular setup, I need a FC tape drive passed though to the vm. Note, passing throuh FC - LUNs works flawlessly.=20 If I understood Virtio -SCSI correctly, this should be possible from libvirt's part. 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5 9

cloud-init woes w/ templates
by Andrew Lau 27 Apr '14

27 Apr '14

Hi, Has anyone had any success with cloud-init and templates with ovirt 3.4? So far, it seems to be able to configure things like networks etc. But when it goes to do with passwords, it must be set again in the "run once" or in the "Initial Run" even if "Use already configured password" is set. Another thing, why is it only setup to change the root password? By default cloud-init will block root, so nearly all images need to be modified ie. sed -i 's/disable_root: 1/disable_root: 0\nchpasswd: { expire: False }/g' /etc/cloud/cloud.cfg Otherwise, you'll login and it'll ask you to change your password. Defeats the purpose of setting it through cloud-init? I'm also not being able to just set an SSH key, it insists a password otherwise the key won't get uploaded. Finally, templates seem to be lacking validation. Where "Initial Run" and "Run Once" will give the red box if you have the wrong syntax while templates don't care. Thanks, Andrew

3 5

Unable to edit virt-v2v import VM - 3.4.0
by Trey Dockendorf 27 Apr '14

27 Apr '14

I just imported a VM using the following command: virt-v2v -ic qemu+ssh://root@kvm1.DOMAIN/system -o rhev -os 192.168.202.245:/tank/ovirt/import_export --network ovirtmgmt --vmtype server syslog.DOMAIN I successfully imported it in the oVirt web UI, but when I try to edit the VM I get the following message, "Cannot edit VM. Cannot set single display device via VNC display.". I noticed the "Single PCI" option in the Console section is checked, when none of my other VMs have this checked. Another VM I imported using version 3.3.x does not have this checked. The checkbox is greyed out, so I can't make any modifications in the "Edit" dialog. Any suggestions? For issues regarding importing from KVM using virt-v2v, what logs are useful besides engine.log? Thanks - Trey

3 2

new feature
by Martin Mucha 26 Apr '14

26 Apr '14

Hi, I'd like to notify you about new feature, which allows to specify distinct MAC pools, currently one per data center. http://www.ovirt.org/Scoped_MacPoolManager any comments/proposals for improvement are very welcomed. Martin.

4 16

Network Security / Seperation
by squadra 26 Apr '14

26 Apr '14

Hi Folks, i am currently looking for a way to isolate each vms network traffic so none can sniff others network traffic. currently i am playing around with the neutron integration, which gives me more question marks than answers for now (even documentation seems to be incomplete / outdated). Is there any other solution, which does not require to create a new vlan for each vm, to make sure that noone can sniff others traffic? Cheers, Juergen -- Sent from the Delta quadrant using Borg technology!

4 3

Ovirt snapshot failing on one VM
by Steve Dainard 26 Apr '14

26 Apr '14

I've attempted migrating the vm to another host and taking a snapshot, but I get this error: 6efd33f4-984c-4513-b5e6-fffdca2e983b::ERROR::2014-04-22 01:09:37,296::volume::286::Storage.Volume::(clone) Volume.clone: can't clone: /rhev/data-center/9497ef2c-8368-4c92-8d61-7f318a90748f/95b9d922-4df7-4d3b-9bca-467e2fd9d573/images/466d9ae9-e46a-46f8-9f4b-964d8af0675b/1a67de4b-aa1c-4436-baca-ca55726d54d7 to /rhev/data-center/9497ef2c-8368-4c92-8d61-7f318a90748f/95b9d922-4df7-4d3b-9bca-467e2fd9d573/images/466d9ae9-e46a-46f8-9f4b-964d8af0675b/b230596f-97bc-4532-ba57-5654fa9c6c51 A bit more of the vdsm log is attached. Other vm's are snapshotting without issue. Any help appreciated, *Steve *

5 15

oVirt 3.4 - Hosted Engine: Cluster Reboot procedure
by Daniel Helgenberger 26 Apr '14

26 Apr '14

--=-QguCZheGA74Z2DLSRg8u Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello ovirt-users, after playing around with my ovirt 3.4 hosted engine two node HA cluster I have devised a procedure on how to restart the whole cluster after a power loss / normal shutdown. This assumes all HA-Nodes have been taken offline. This also applies partly to rebooted HA nodes. Please feel free do ask questions and/or comment on improvements. Most of the things should be obsoleted by future updates anyway. Note 1: The problem IMHO seems to be the non connected nfs storage domain, resulting in the HA-Agent crash / hang. The ha-broker service should be up and running all the time. Please check this. Note 2:=20 My setup consists of two nodes; 'all nodes' means the task has to be performed on every node HA node in the cluster. Node 3: By 'Login' I mean SSH or local access. Part A: SHUTDOWN THE CLUSTER Prerequisite: oVirt HE cluster running, should be taken offline for maintenance: 1. In oVirt, shutdown all VM's except HostedEngine. 2. Login to one cluster node and run 'hosted-engine --set-maintenance --mode=3Dglobal' to put the cluster into global maintenance 3. Login to ovirt engine VM and shut it down with 'shutdown -h now' 4. Login to one cluster node and run 'hosted-engine --vm-status' to check if the engine is really down.=20 5. Shutdown all HA nodes subsequently. Part B: STARTING THE CLUSTER Prerequisite: oVirt HE cluster down, NFS storage server running and exporting the vdsm share. 1. Start all nodes and wait for them to boot up. 2. Login to one cluster node. Check the status of the following services: vdsm, ovirt-ha-agent, ovirt-ha-broker. The status should be all are running except ovirt-ha-agent is in 'locked' state and down. 3. Check 'hosted-engine --vm-status', this should result in a python stack trace (crash). 4. On all cluster nodes, connect the storage pool: 'hosted-engine --connect-storage'. Now, 'hosted-engine --vm-status' runs and reports 'up to date: False' and 'unknown-stale-data' for all nodes. 5. On all cluster nodes, start the 'ovirt-ha-agent' service: 'service ovirt-ha-agent start' 6. Wait a few minutes for the ha-broker and the agent to collect the cluster state. 7. Login to one cluster node. Check 'hosted-engine --vm-status' until you have cluster nodes 'status-up-to-date: True' and 'score: 2400' 8. If the cluster was shutdown by yourself and in global maintenance, remove the maintenance mode with 'hosted-engine --set-maintenance --mode=3Dnone'. Now, the system should do a FSM reinitialize and start the HostedEngine by itself.=C2=B9 If it was not in maintenance (eg. power fail) the engine should be started as soon as one host gets a score of 2400. Part C: STARTING A SINGLE NODE Prerequisite: oVirt HE cluster up, HostedEngine running. One ha node was taken offline by local maintenance in oVirt and rebooted. 1. Follow steps 1-5 of Part B 2. In oVirt, navigate to Cluster, Hosts and activate the node previously in maintenance. --- 1 I observed the following things: * If you use the command 'hosted-engine --vm-shutdown' instead of loging in to the ovirt HE and do a local shutdown, the Default Data Center is set to non - responsive and being Contented after the reboot. I highly suspect an unclean shutdown by running the command. Further, it waits about two min. with the shutdown. * If you use the command 'hosted-engine --vm-start' on a cluster in global maintenance, wait for successful start ({'health': 'good', 'vm': 'up', 'detail': 'up'}) and remove the maintenance status, the engine gets restarted once. By removing the maintenance first and letting ha-agent do the work, the engine is not restarted. Cheers, Daniel --=20 Daniel Helgenberger=20 m box bewegtbild GmbH=20 P: +49/30/2408781-22 F: +49/30/2408781-10 ACKERSTR. 19=20 D-10115 BERLIN=20 www.m-box.de www.monkeymen.tv=20 Gesch=C3=A4ftsf=C3=BChrer: Martin Retschitzegger / Michaela G=C3=B6llner Handeslregister: Amtsgericht Charlottenburg / HRB 112767=20 --=-QguCZheGA74Z2DLSRg8u Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIINtjCCBBYw ggL+oAMCAQICCwQAAAAAAS9O4S9SMA0GCSqGSIb3DQEBBQUAMFcxCzAJBgNVBAYTAkJFMRkwFwYD VQQKExBHbG9iYWxTaWduIG52LXNhMRAwDgYDVQQLEwdSb290IENBMRswGQYDVQQDExJHbG9iYWxT aWduIFJvb3QgQ0EwHhcNMTEwNDEzMTAwMDAwWhcNMTkwNDEzMTAwMDAwWjBUMQswCQYDVQQGEwJC RTEZMBcGA1UEChMQR2xvYmFsU2lnbiBudi1zYTEqMCgGA1UEAxMhR2xvYmFsU2lnbiBQZXJzb25h bFNpZ24gMiBDQSAtIEcyMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwWtB+TXs+BJ9 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does SPM can run over ovirt-engine host ?
by Tamer Lima 25 Apr '14

25 Apr '14

Hello, When I create virtual machine from a template (centos6.5, 2 cores, 8GB mem, 500GB hd) this process takes almost 2 hours. I click on "New VM" button and just select the template and click ok. engine.log show me high network consumption (98%) between engine-server host and SPM host. I tried to make my engine-server host a spm host too, but without sucess. Does SPM can run over on the same ovirt-engine machine ? Am I make something wrong? Or create VM from template is really slow ? my servers : srv-0202 = ovirt-engine , vdsm srv-0203 = spm , vdsm srv-0204 = vdsm These servers are dell blades connected on a 100GB switch. thanks This is what I know about SPM: http://www.ovirt.org/Storage_-_oVirt_workshop_November_2011 = Storage Pool Manager (SPM) A role assigned to one host in a data center granting it sole authority over: - Creation, deletion, an dmanipulation of virtula disk images, snapshots and templates - Templates: you can create on VM as a golden image and provision to multiple VMs (QCOW layers) - Allocation of storage for sparse block devices (on SAN) - Thin provisinoing (see below) - Single metadata writer: - SPM lease mechanism (Chockler and Malkhi 2004, Light-Weight Leases for Storage-Cnntric Coordination) - Storage-centric mailbox - This role can be migrated to any host in data center

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