Re: [ovirt-users] Slow storage migration towards nfs
Please disregard prev. post. Clear l8 problem. On Sat, 2015-02-21 at 02:42 +0100, Tobias Fiebig wrote: Heho, I currently move some vms from fcal-store to nfs, so i can restructure the fcal storage. However, i noticed, that dd is running with oflag=direct. I/o is currently very slow (~160mbit) on the nfs-servers network. Starting dd without oflag=direct leads to link-speed transmission (~1gbit/s). So... is this intended beheaviour? With best Regards, Tobias ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] Slow storage migration towards nfs
Heho, I currently move some vms from fcal-store to nfs, so i can restructure the fcal storage. However, i noticed, that dd is running with oflag=direct. I/o is currently very slow (~160mbit) on the nfs-servers network. Starting dd without oflag=direct leads to link-speed transmission (~1gbit/s). So... is this intended beheaviour? With best Regards, Tobias ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Issues adding a custom fencing agent
Heho, i could establish that this only happens when CustomVdsFenceOptionMapping is not set. So probably a bug. With best Regards, Tobias On Mon, 2015-02-09 at 17:24 +0100, Tobias Fiebig wrote: Heho, Currently there is four active hosts in the cluster. With the pre-existing fence-configurations (i.e. Picking apc_snmp) i can always see that it is at least executed on one of the nodes. My self-created one does not even lead so far. With best regards, Tobias On 09 Feb 2015, at 11:28, Eli Mesika emes...@redhat.com wrote: - Original Message - From: Tobias Fiebig m...@wybt.net To: users@ovirt.org Sent: Thursday, February 5, 2015 8:43:26 PM Subject: [ovirt-users] Issues adding a custom fencing agent Heho, i currently try to get an intelmodular server working with fencing, following: http://lists.ovirt.org/pipermail/devel/2014-February/006525.html and http://www.ovirt.org/Custom_Fencing BaseInfo: Scientific Linux 6.6 (engine/hosts) Ovirt 3.5 I added an agent with: engine-config -s CustomVdsFenceType=intelmodular /etc/init.d/ovirt-engine restart The issue is, that the added agent always results in: 2015-02-05 19:31:08,963 ERROR [org.ovirt.engine.core.bll.FenceExecutor] (ajp--127.0.0.1-8702-1) Failed to run Power Management command on Host , no running proxy Host was found. Hi How many hosts do you have in the cluster/dc ? and: Test Failed, There is no other host in the data center that can be used to test the power management settings. Picking any other agent, results in the execution of the binary on one of the cluster hosts. (which, of course fails). Replacing one of theses default-fences with a bash-script echoing $@ to a file prints nothing, additional programs (id, env) however do print sth. to the given file. Any ideas on how to continue this, to ideally get fence_intelmodular working? With best Regards, Tobias ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Issues adding a custom fencing agent
Heho, Currently there is four active hosts in the cluster. With the pre-existing fence-configurations (i.e. Picking apc_snmp) i can always see that it is at least executed on one of the nodes. My self-created one does not even lead so far. With best regards, Tobias On 09 Feb 2015, at 11:28, Eli Mesika emes...@redhat.com wrote: - Original Message - From: Tobias Fiebig m...@wybt.net To: users@ovirt.org Sent: Thursday, February 5, 2015 8:43:26 PM Subject: [ovirt-users] Issues adding a custom fencing agent Heho, i currently try to get an intelmodular server working with fencing, following: http://lists.ovirt.org/pipermail/devel/2014-February/006525.html and http://www.ovirt.org/Custom_Fencing BaseInfo: Scientific Linux 6.6 (engine/hosts) Ovirt 3.5 I added an agent with: engine-config -s CustomVdsFenceType=intelmodular /etc/init.d/ovirt-engine restart The issue is, that the added agent always results in: 2015-02-05 19:31:08,963 ERROR [org.ovirt.engine.core.bll.FenceExecutor] (ajp--127.0.0.1-8702-1) Failed to run Power Management command on Host , no running proxy Host was found. Hi How many hosts do you have in the cluster/dc ? and: Test Failed, There is no other host in the data center that can be used to test the power management settings. Picking any other agent, results in the execution of the binary on one of the cluster hosts. (which, of course fails). Replacing one of theses default-fences with a bash-script echoing $@ to a file prints nothing, additional programs (id, env) however do print sth. to the given file. Any ideas on how to continue this, to ideally get fence_intelmodular working? With best Regards, Tobias ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Issues adding a custom fencing agent
Heho, Assigned both BZ to me, will handle ... Thanks for finding that Np. Btw... is there some further documentation on the fencing scripts? I basically ended up reading the python scripts to figure out how they work, and that the supplied commands do no really equal to the options expected via stdin. If that is missing i can spend some time on compiling some doc-snippets for that, which could be placed on the ovirt page. With best Regards, Tobias ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Issues adding a custom fencing agent
Heho, Currently there is four active hosts in the cluster. With the pre-existing fence-configurations (i.e. Picking apc_snmp) i can always see that it is at least executed on one of the nodes. My self-created one does not even lead so far. With best regards, Tobias On 09 Feb 2015, at 11:28, Eli Mesika emes...@redhat.com wrote: - Original Message - From: Tobias Fiebig m...@wybt.net To: users@ovirt.org Sent: Thursday, February 5, 2015 8:43:26 PM Subject: [ovirt-users] Issues adding a custom fencing agent Heho, i currently try to get an intelmodular server working with fencing, following: http://lists.ovirt.org/pipermail/devel/2014-February/006525.html and http://www.ovirt.org/Custom_Fencing BaseInfo: Scientific Linux 6.6 (engine/hosts) Ovirt 3.5 I added an agent with: engine-config -s CustomVdsFenceType=intelmodular /etc/init.d/ovirt-engine restart The issue is, that the added agent always results in: 2015-02-05 19:31:08,963 ERROR [org.ovirt.engine.core.bll.FenceExecutor] (ajp--127.0.0.1-8702-1) Failed to run Power Management command on Host , no running proxy Host was found. Hi How many hosts do you have in the cluster/dc ? and: Test Failed, There is no other host in the data center that can be used to test the power management settings. Picking any other agent, results in the execution of the binary on one of the cluster hosts. (which, of course fails). Replacing one of theses default-fences with a bash-script echoing $@ to a file prints nothing, additional programs (id, env) however do print sth. to the given file. Any ideas on how to continue this, to ideally get fence_intelmodular working? With best Regards, Tobias ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Issues adding a custom fencing agent
Heho, solved (more or less) with: https://bugzilla.redhat.com/show_bug.cgi?id=1190843 and https://bugzilla.redhat.com/show_bug.cgi?id=1190845 With best Regards, Tobias ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] Issues adding a custom fencing agent
Heho, i currently try to get an intelmodular server working with fencing, following: http://lists.ovirt.org/pipermail/devel/2014-February/006525.html and http://www.ovirt.org/Custom_Fencing BaseInfo: Scientific Linux 6.6 (engine/hosts) Ovirt 3.5 I added an agent with: engine-config -s CustomVdsFenceType=intelmodular /etc/init.d/ovirt-engine restart The issue is, that the added agent always results in: 2015-02-05 19:31:08,963 ERROR [org.ovirt.engine.core.bll.FenceExecutor] (ajp--127.0.0.1-8702-1) Failed to run Power Management command on Host , no running proxy Host was found. and: Test Failed, There is no other host in the data center that can be used to test the power management settings. Picking any other agent, results in the execution of the binary on one of the cluster hosts. (which, of course fails). Replacing one of theses default-fences with a bash-script echoing $@ to a file prints nothing, additional programs (id, env) however do print sth. to the given file. Any ideas on how to continue this, to ideally get fence_intelmodular working? With best Regards, Tobias ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[Users] Attach NFS storage to multiple datacenter
Heho, for some reason i currently have two active datacenters in ovirt 3.3 which should be cold migrated to one new datacenter. Is there a simple way to attach an nfs-storage to all datacenters, so it can be used to migrate the virtual machines? I was sadly unable to find documentation on this issue online... With best Regards, Tobias ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [Users] Attach NFS storage to multiple datacenter
Heho, On Thu, 2014-01-16 at 10:14 -0500, Elad Ben Aharon wrote: When the domain is active on the second DC, you'll be able to see your exported VMs on 'VM import' sub-tab under the export storage domain. Import the VMs to the second DC. I was afraid that this would be the way to go. So attach/detach for each individual vm-migration. Thank you for the clarification. With best Regards, Tobias ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [Users] Attach NFS storage to multiple datacenter
Heho, On Thu, 2014-01-16 at 11:10 -0500, Elad Ben Aharon wrote: You don't have to attach/detach the domain for every VM export. Sorry for not being clear. You can export all your VMs to the export domain at once and then detach the export domain and attach it to the second DC. May have miscommunicated that... I can not do this because this kind of means that the vms will be down during the whole movement process. I'd like to reduce the per-vm downtime as much as possible. With best Regards, Tobias ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [Users] Attach NFS storage to multiple datacenter
Heho, Unfortunately yes, you'll suffer from a down time during this process. Well, as the downtime could be significantly decreased/the comfort for an migrate one vm, then the next largely increased, if an nfs storage could be mounted on multiple datacenters simultaneous i wonder if such a feature is planed? Main concern for me is that it might not really fit into the current way of handling storage in ovirt. With best Regards, Tobias ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[Users] Intel Modular Server Powermanagement
Heho, we are using an intel modular server (IMS) as virtualization center in our university chair. These systems should now be migrated to ovirt. However, apparently fencing/power management via /usr/sbin/fence_intelmodular can not be configured in ovirt 3.3. Does anyone have an idea how to solve this issue? Is there maybe a simple way to add custom fence agents? With best Regards, Tobias ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
