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[Users] Gluster question
by Maurice James 09 Feb '14

09 Feb '14

------=_NextPart_000_00FD_01CF22B5.E5FD9560 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit I currently have a new setup running ovirt 3.3.3. I have a Gluster storage domain with roughly 2.5TB of usable space. Gluster is installed on the same systems as the ovirt hosts. The host break down is as follows Ovirt DC: 4 hosts in the cluster. Each host has 4 physical disks in a RAID 5. Each disk is 500GB. With the OS installed and configured I end up with 1.2TB of usable space left for my data volume Gluster volume: 4 bricks with 1.2TB of space per brick (Distribute Replicate leaves me with about 2.5TB in the storage domain) Does this setup give me enough fault tolerance to survive losing a host and have my HA vm automatically move to an available host and keep running?? ------=_NextPart_000_00FD_01CF22B5.E5FD9560 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-microsoft-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=3DContent-Type content=3D"text/html; = charset=3Dus-ascii"><meta name=3DGenerator content=3D"Microsoft Word 15 = (filtered medium)"><style></style></head><body lang=3DEN-US = link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1>I currently have a new setup running ovirt 3.3.3. I = have a Gluster storage domain with roughly 2.5TB of usable space. =  Gluster is installed on the same systems as the ovirt hosts. The = host break down is as follows<o:p></o:p><o:p> </o:p>Ovirt = DC:<o:p></o:p>4 hosts in the cluster. Each host = has 4 physical disks in a RAID 5. Each disk is 500GB. With the OS = installed and configured I end up with 1.2TB of usable space left for my = data volume<o:p></o:p><o:p> </o:p>Gluster volume:<o:p></o:p>4 = bricks with 1.2TB of space per brick (Distribute Replicate leaves me = with about 2.5TB in the storage domain)<o:p></o:p><o:p> </o:p><o:p> </o:p>Does this = setup give me enough fault tolerance to survive losing a host and have = my HA vm automatically move to an available host and keep = running??<o:p></o:p><o:p> </o:p></div></body></html> ------=_NextPart_000_00FD_01CF22B5.E5FD9560--

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[Users] Reattach storage domain
by Alexandr 09 Feb '14

09 Feb '14

Hello! Unfortunately my master storage domain (gluster) is dead. I setup another gluster-storage and attach it to the ovirt. Hostname, path and volume name are same as old ones. Then I restored from tar archive all files. But I cannot activate master domain, operation failed and domain status remains "inactive". I see - it mounted on nodes: vms02.lis.ua:STORAGE on /rhev/data-center/mnt/glusterSD/vms02.lis.ua:STORAGE I attached engine.log, can someone provide me recovery steps? P.S. Sorry for my english

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[Users] New iSCSI domain problem when first input wrong password
by Gianluca Cecchi 09 Feb '14

09 Feb '14

Hello, I have a fedora 19 engine based on 3.3 final. I installed a fedora 19 host (configured as infrastructure server) and then installed from web gui. Then yum update of the host updated vdsm (see separate thread I'm going to open for this). I create iSCSI DC and add that host to it. When I try to create the new iSCSI storage domain (sw iscsi target on a CentOS 6.5 server) I initially input the wrong chap password so that discovery goes ok, while authentication fails. Then I put correct pwd but after apparently going on (I see the exposed lun) then gives error in webadmin gui I have 2014-Feb-05, 16:57 Failed to attach Storage Domain OV01 to Data Center ISCSI. (User: admin@internal) 2014-Feb-05, 16:57 Failed to attach Storage Domains to Data Center ISCSI. (User: admin@internal) 2014-Feb-05, 16:57 The error message for connection 192.168.230.101 iqn.2013-09.local.localdomain:c6iscsit.target11 (LUN 1IET_00010001) returned by VDSM was: Failed to setup iSCSI subsystem 2014-Feb-05, 16:57 Storage Domain OV01 was added by admin@internal A workaround to have it activated is then (see logs 18:11): - put host in maintenance - reactivate it - attach sd to DC - ok (but see watermark message I don't understand) 2014-Feb-05, 18:13 The system has reached the 80% watermark on the VG metadata area size on OV01. This is due to a high number of Vdisks or large Vdisks size allocated on this specific VG. 2014-Feb-05, 18:13 Storage Domains were attached to Data Center ISCSI by admin@internal 2014-Feb-05, 18:13 Storage Domain OV01 (Data Center ISCSI) was activated by admin@internal 2014-Feb-05, 18:13 Storage Pool Manager runs on Host ovnode03 (Address: 192.168.33.44). 2014-Feb-05, 18:12 Data Center is being initialized, please wait for initialization to complete. 2014-Feb-05, 18:12 State was set to Up for host ovnode03. 2014-Feb-05, 18:11 Host ovnode03 was activated by admin@internal. 2014-Feb-05, 18:11 Host ovnode03 was switched to Maintenance mode by admin@internal. See my vdsm.log and supervdsm.log here https://drive.google.com/file/d/0BwoPbcrMv8mval9XMnN4ZGoxa00/edit?usp=shari… https://drive.google.com/file/d/0BwoPbcrMv8mveC1KQmo1dFAtNzQ/edit?usp=shari… Possibly initially wrong password is not optimally managed when putting the correct one, as I see some traceback. Gianluca

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[Users] Cannot install ovirt-engine on Fedora 20 by using YUM
by Karthi Keyan 09 Feb '14

09 Feb '14

Hi All, I am new to Ovirt. I am trying to install ovirt-engine but i cannot able to install it. I have followed this documentation http://www.ovirt.org/Quick_Start_Guide#oVirt_Engine. And i am getting this Error: *[root@localhost yum.repos.d]# yum install ovirt-engine* Loaded plugins: langpacks, refresh-packagekit http://ovirt.org/releases/stable/rpm/Fedora/20/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found Trying other mirror. No package ovirt-engine available. Error: Nothing to do Please guide me! Regards, Karthikeyan

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[Users] Can't open ovirt console using Spice or VNC - help!
by Drew Showers 09 Feb '14

09 Feb '14

Hello, I'm a nube with ovirt, but have the ovirt-engine and 1 remote host up and running (separate physical servers, same subnet). The network, DNS. NFS all work. I can create VM's, install the ISO OS with no problems. Here is were I get stuck. After a frustrating few hours trying to get a console to launch on my mac, I broke down and created a new Centos 6.4 Desktop VM using Fusion. I've installed - spice-xpi (yum install spice-xpi) virt-manager (yum install virt-manager) Using Firefox, if I try to open the console from the ovirt admin using Spice browser plugin or native client options, nothing happens (no errors either), other than message saying the user is initiating a console session. If using VNC, then it wants to either download the console.vv or open it with the default viewer, which throws and error "Unable to connect to the graphics server file" So, I'm stuck in going any further until I get this worked out. No VM IP or host name (unless I'm missing something)... I actually find this quite unfriendly. I know similar issues have been discussed previously, but none have solved my problem. BTW: I'm running Centos 6.5 on both the engine and host. I'm not sure if I'm missing additional packages or what. Any help would be greatly appreciated. Thanks, Drew

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[Users] A/B network setup
by Pat Pierson 09 Feb '14

09 Feb '14

I am having some issues wrapping my head around this but what I am trying to setup is a A/B testing environment with a 3node cluster. Each node has 2 nics, 1 for ovirtmgmt and 1 for vlaned A/B network. I guess what I am trying to understand is if ovirt is tagging the vlan's I setup and is properly passing that to the switch? This would allow me to have multiple subnets on a host that the switch also can see as multiple vlans. Right? I would still have to configure the switch to allow that port access to both vlans. -- Patrick Pierson

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[Users] FOSDEM slides + recordings available
by Doron Fediuck 09 Feb '14

09 Feb '14

http://www.ovirt.org/FOSDEM_2014#Sessions I will continue to update with recordings (and last slides) as it becomes available. This is also a good chance to thank everyone involved. People who practiced, spoke, volunteered for stand shifts, Video handling, helping with the oVirt-live, carrying maps, laptops, handout-sheets, poster-sign to/from UBL and other logistics. Special thanks to Joop, René, Jorick, Robert and Alexander who joined us in ULB . We got a big and very positive exposure for oVirt, which as you'll be able to hear is getting a lot of community attention now. See you in FOSDEM 2015 ;) Doron

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[Users] Best way to request a new feature?
by Bob Doolittle 09 Feb '14

09 Feb '14

What's the best way to request a new feature? Do we manage a Wiki page for this somewhere? Or should I just open a bug/rfe? The feature I'd like to see: It would be nice if the Admin page had an indication either on the VMs page or in the left navigation frame when everything is in place for starting VMs. Here's an example scenario to illustrate why this would be useful: Every morning I power up my Engine and Host machines. The first thing I have to do is Activate my Host, and then monitor it while it comes up, Contends and eventually assumes SPM responsibility. Then I can change to the tab with my VMs and start up the one(s) I need, and open their consoles. But I have to watch the Host tab until SPM is established, because when looking at the VMs page there's no indication whether they can be started up yet or not. Nothing unless I try to start one, and get a pop-up error. Additional useful features: Is there any way to cause a VM to automatically power on as soon as oVirt is ready to do so? Is there any way to cause a console to automatically open up as soon as a VM is started? -Bob

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[Users] Backups
by Maurice James 08 Feb '14

08 Feb '14

------=_NextPart_000_004D_01CF24F1.1C9886B0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit What is the recommended enterprise backup solution for RHEV/oVirt? Symantec, Veem, Backula.... ------=_NextPart_000_004D_01CF24F1.1C9886B0 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-microsoft-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=3DGenerator content=3D"Microsoft Word 15 = (filtered medium)"><style></style></head><body lang=3DEN-US = link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1>What is the recommended enterprise backup solution for = RHEV/oVirt?<o:p></o:p>Symantec, Veem, = Backula……..<o:p></o:p></div></body></html> ------=_NextPart_000_004D_01CF24F1.1C9886B0--

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[Users] Resource question
by Maurice James 08 Feb '14

08 Feb '14

------=_NextPart_000_002F_01CF24EA.83D4EAF0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit This may seem like a silly question but, I just need to wrap my head around a concept Are my VMs limited by host or cluster resources? 4 hosts with the following resources per host: 2 6 core intel processors (24 cores per host) 32GB memory 1.2TB NFS storage So across the cluster I have 96 cpu cores 128GB memory 4.8TB of NFS storage Can I create a single VM with let's say: 25 cpu cores 64GB of RAM 2TB of storage Am I limited by the host or the cluster? ( Keep in mind that I'm not actually going to create such a ridiculous VM but the question is bothering me). Thanks ------=_NextPart_000_002F_01CF24EA.83D4EAF0 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-microsoft-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=3DGenerator content=3D"Microsoft Word 15 = (filtered medium)"><style></style></head><body lang=3DEN-US = link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1>This may seem like a silly question but, I just need = to wrap my head around a concept<o:p></o:p><o:p> </o:p>Are my VMs = limited by host or cluster resources?<o:p></o:p><o:p> </o:p>4 hosts with = the following resources per host:<o:p></o:p>2 6 = core intel processors (24  cores per host)<o:p></o:p>32GB memory<o:p></o:p>1.2TB = NFS storage<o:p></o:p><o:p> </o:p>So across the cluster I have<o:p></o:p>96 cpu cores<o:p></o:p>128GB = memory<o:p></o:p>4.8TB of NFS = storage<o:p></o:p><o:p> </o:p>Can I create a single VM with let’s = say:<o:p></o:p>25 cpu cores<o:p></o:p>64GB of RAM<o:p></o:p>2TB of = storage<o:p></o:p><o:p> </o:p>Am I limited by the host or the cluster? ( Keep in = mind that I’m not actually going to create such a ridiculous VM = but the question is bothering me). = Thanks<o:p></o:p></div></body></html> ------=_NextPart_000_002F_01CF24EA.83D4EAF0--

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