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Re: low power, low cost glusterfs storage
by Strahil 04 Mar '19

04 Mar '19

The problem is that anything on the budged doesn't have decent network + enough storage slots. Maybe a homemade workstation with AMD ryzen could do the trick - but this is way over the budged compared to raspberry Pi-s Best Regards, Strahil NikolovOn Mar 3, 2019 12:22, Jonathan Baecker <jonbae77(a)gmail.com> wrote: > > Hello everybody! > > Does anyone here have experience with a cheap, energy-saving glusterfs > storage solution? I'm thinking of something that has more power than a > rasbian Pi, 3 x 2 TB (SSD) storage, but doesn't cost much more and > doesn't consume much more power. > > Would that be possible? I know the "Red Hat Gluster Storage" > requirements, but are they generally so high? Only a few VM images would > have to be on it... > > Greetings > > Jonathan > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ > oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ > List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/NWOA24SHB2CV6…

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Re: Advice around ovirt 4.3 / gluster 5.x
by Strahil 03 Mar '19

03 Mar '19

I think that there are updates via 4.3.1 . Have you checked for gluster updates? Best Regards, Strahil NikolovOn Mar 2, 2019 23:16, Endre Karlson <endre.karlson(a)gmail.com> wrote: > > Hi, should we downgrade / reinstall our cluster? we have a 4 node cluster that's breakin apart daily due to the issues with GlusterFS after upgrading from 4.2.8 that was rock solid. I am wondering why 4.3 was released as a stable version at all?? **FRUSTRATION** > > Endre

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Cannot assign Network to Mellanox Interface
by cbop.mail＠gmail.com 02 Mar '19

02 Mar '19

Hello, I want to use my Infiniband Network for Storage Access, so I created a new network and tried to assign it to a host. When I do this, I get a success message but it's actually not assigned to my Infiniband NIC. I'm running the latest CentOS with the latest Mellanox OFED drivers and multiple Subnet Managers are running on the network. The NIC is a Mellanox ConnectX-2 VPI, set to Infiniband mode. I didnt't knew which logs to send, so when you need to look into a log, just tell me which one you need. I hope you can help me out. Roman Meusch

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Re: Mounting CephFS
by Strahil 02 Mar '19

02 Mar '19

Hi Leo, Check libvirt's logs on the destination host. Maybe they can provide more information. Best Regards, Strahil NikolovOn Mar 2, 2019 15:40, Leo David <leoalex(a)gmail.com> wrote: > > Thank you, > I am trying to migrate a vm that has its disks on cephfs ( as posix domain - mounted on all hosts ), and it does not work. Not sure if this is normal, considering the vm disks being on this type of storage. The error logs in engine are: > > 2019-03-02 13:35:03,483Z ERROR [org.ovirt.engine.core.vdsbroker.monitoring.VmAnalyzer] (ForkJoinPool-1-worker-0) [] Migration of VM 'centos7-test' to host 'node1.internal' failed: VM destroyed during the startup. > 2019-03-02 13:35:03,505Z ERROR [org.ovirt.engine.core.vdsbroker.monitoring.VmsMonitoring] (ForkJoinPool-1-worker-14) [] Rerun VM 'bec1cd40-9d62-4f6d-a9df-d97a79584441'. Called from VDS 'node2.internal' > 2019-03-02 13:35:03,566Z ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-42967) [] EVENT_ID: VM_MIGRATION_TO_SERVER_FAILED(120), Migration failed (VM: centos7-test, Source: node2.internal, Destination: node1.internal). > > Any thoughts ? > > Thanks, > > Leo > > > On Sat, Mar 2, 2019 at 11:59 AM Strahil <hunter86_bg(a)yahoo.com> wrote: >> >> If you mean storage migration - could be possible. >> If it is about live migration between hosts - shouldn't happen. >> Anything in the logs ? >> >> Best Regards, >> Strahil Nikolov >> >> On Mar 2, 2019 09:23, Leo David <leoalex(a)gmail.com> wrote: >>> >>> Thank you Strahil, yes thought about that too, I'll give it a try. >>> Now ( to be a bit offtopic ), it seems that I can't live migrate the vm, even thought the cephfs mountpoint exists on all the hosts. >>> Could it be the fact that the storage type is "posix" and live migration not being possible ? >>> >>> Thank you ! >>> >>> On Sat, Mar 2, 2019, 04:05 Strahil <hunter86_bg(a)yahoo.com> wrote: >>>> >>>> Can you try to set the credentials in a file (don't recall where that was for ceph) , so you can mount without specifying user/pass ? >>>> >>>> Best Regards, >>>> Strahil Nikolov >>>> >>>> On Mar 1, 2019 13:46, Leo David <leoalex(a)gmail.com> wrote: >>>>> >>>>> Hi Everyone, >>>>> I am trying to mount cephfs as a posix storage domain and getting an error in vdsm.log, although the direct command run on the node " mount -t ceph 10.10.6.1:/sata/ovirt-data /cephfs-sata/ -o name=admin,secret=AQAzncZY0VyYHBAAoeeePdv8Rr5kZlW07EVhZZ== " works fine. I have configured: >>>>> Storage type: POSIX compliant FS >>>>> Path: 10.10.6.1:/sata/ovirt-data >>>>> VFS Type: ceph >>>>> Mount Options: name=admin,secret=AQAzncZY0VyYHBAAoeeePdv8Rr5kZlW07EVhZZ== >>>>> >>>>> >>>>> 2019-03-01 11:35:33,457+0000 INFO (jsonrpc/4) [storage.Mount] mounting 10.10.6.1:/sata/ovirt-data at /rhev/data-center/mnt/10.10.6.1:_sata_ovirt-data (mount:204) >>>>> 2019-03-01 11:35:33,464+0000 INFO (jsonrpc/0) [jsonrpc.JsonRpcServer] RPC call Host.ping2 succeeded in 0.00 seconds (__init__:312) >>>>> 2019-03-01 11:35:33,471+0000 ERROR (jsonrpc/4) [storage.HSM] Could not connect to storageServer (hsm:2414)

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oVirt 4.3 and dual socket hosts : numad?
by Guillaume Pavese 02 Mar '19

02 Mar '19

Is it recommended to enable numad service for automatic NUMA memory optimization? I could not find any recommendation on that front for oVirt ; all benchmarks and documentation I could find are from around ~2015 I see that kernel autonuma balancing is on : cat /proc/sys/kernel/numa_balancing 1 Not sure which is better as of now. Guillaume Pavese Ingénieur Système et Réseau Interactiv-Group

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Re: Cannot Increase Hosted Engine VM Memory
by Douglas Duckworth 02 Mar '19

02 Mar '19

Ok sounds good. I will upgrade then hope this goes away. On Thu, Jan 31, 2019, 12:09 PM Simone Tiraboschi <stirabos(a)redhat.com<mailto:stirabos@redhat.com> wrote: On Thu, Jan 31, 2019 at 4:20 PM Douglas Duckworth <dod2014(a)med.cornell.edu<mailto:dod2014@med.cornell.edu>> wrote: Hi Simone Thanks again for your help! Do you have some ideas on what I can try to resolve this issue? Honestly I'm not able to reproduce this issue. I can only suggest to try upgrading to 4.2.8 if still not there, and if still not working open a bug on bugzilla attaching engine.log. Thanks, Douglas Duckworth, MSc, LFCS HPC System Administrator Scientific Computing Unit<https://scu.med.cornell.edu> Weill Cornell Medicine 1300 York Avenue New York, NY 10065 E: doug(a)med.cornell.edu<mailto:doug@med.cornell.edu> O: 212-746-6305 F: 212-746-8690 On Fri, Jan 25, 2019 at 3:15 PM Douglas Duckworth <dod2014(a)med.cornell.edu<mailto:dod2014@med.cornell.edu>> wrote: Yes, I do. Gold crown indeed. It's the "HostedEngine" as seen attached! Thanks, Douglas Duckworth, MSc, LFCS HPC System Administrator Scientific Computing Unit<https://scu.med.cornell.edu> Weill Cornell Medicine 1300 York Avenue New York, NY 10065 E: doug(a)med.cornell.edu<mailto:doug@med.cornell.edu> O: 212-746-6305 F: 212-746-8690 On Wed, Jan 23, 2019 at 12:02 PM Simone Tiraboschi <stirabos(a)redhat.com<mailto:stirabos@redhat.com>> wrote: On Wed, Jan 23, 2019 at 5:51 PM Douglas Duckworth <dod2014(a)med.cornell.edu<mailto:dod2014@med.cornell.edu>> wrote: Hi Simone Can I get help with this issue? Still cannot increase memory for Hosted Engine. From the logs it seams that the engine is trying to hotplug memory to the engine VM which is something it should not happen. The engine should simply update engine VM configuration in the OVF_STORE and require a reboot of the engine VM. Quick question, in the VM panel do you see a gold crown symbol on the Engine VM? Thanks, Douglas Duckworth, MSc, LFCS HPC System Administrator Scientific Computing Unit<https://scu.med.cornell.edu> Weill Cornell Medicine 1300 York Avenue New York, NY 10065 E: doug(a)med.cornell.edu<mailto:doug@med.cornell.edu> O: 212-746-6305 F: 212-746-8690 On Thu, Jan 17, 2019 at 8:08 AM Douglas Duckworth <dod2014(a)med.cornell.edu<mailto:dod2014@med.cornell.edu>> wrote: Sure, they're attached. In "first attempt" the error seems to be: 2019-01-17 07:49:24,795-05 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (default task-29) [680f82b3-7612-4d91-afdc-43937aa298a2] EVENT_ID: FAILED_HOT_SET_MEMORY_NOT_DIVIDABLE(2,048), Failed to hot plug memory to VM HostedEngine. Amount of added memory (4000MiB) is not dividable by 256MiB. Followed by: 2019-01-17 07:49:24,814-05 WARN [org.ovirt.engine.core.bll.UpdateRngDeviceCommand] (default task-29) [26f5f3ed] Validation of action 'UpdateRngDevice' failed for user admin@internal-authz. Reasons: ACTION_TYPE_FAILED_VM_IS_RUNNING 2019-01-17 07:49:24,815-05 ERROR [org.ovirt.engine.core.bll.UpdateVmCommand] (default task-29) [26f5f3ed] Updating RNG device of VM HostedEngine (adf14389-1563-4b1a-9af6-4b40370a825b) failed. Old RNG device = VmRngDevice:{id='VmDeviceId:{deviceId='6435b2b5-163c-4f0c-934e-7994da60dc89', vmId='adf14389-1563-4b1a-9af6-4b40370a825b'}', device='virtio', type='RNG', specParams='[source=urandom]', address='', managed='true', plugged='true', readOnly='false', deviceAlias='', customProperties='null', snapshotId='null', logicalName='null', hostDevice='null'}. New RNG device = VmRngDevice:{id='VmDeviceId:{deviceId='6435b2b5-163c-4f0c-934e-7994da60dc89', vmId='adf14389-1563-4b1a-9af6-4b40370a825b'}', device='virtio', type='RNG', specParams='[source=urandom]', address='', managed='true', plugged='true', readOnly='false', deviceAlias='', customProperties='null', snapshotId='null', logicalName='null', hostDevice='null'}. In "second attempt" I used values that are dividable by 256 MiB so that's no longer present. Though same error: 2019-01-17 07:56:59,795-05 INFO [org.ovirt.engine.core.vdsbroker.SetAmountOfMemoryVDSCommand] (default task-22) [7059a48f] START, SetAmountOfMemoryVDSCommand(HostName = ovirt-hv1.med.cornell.edu<http://ovirt-hv1.med.cornell.edu>, Params:{hostId='cdd5ffda-95c7-4ffa-ae40-be66f1d15c30', vmId='adf14389-1563-4b1a-9af6-4b40370a825b', memoryDevice='VmDevice:{id='VmDeviceId:{deviceId='7f7d97cc-c273-4033-af53-bc9033ea3abe', vmId='adf14389-1563-4b1a-9af6-4b40370a825b'}', device='memory', type='MEMORY', specParams='[node=0, size=2048]', address='', managed='true', plugged='true', readOnly='false', deviceAlias='', customProperties='null', snapshotId='null', logicalName='null', hostDevice='null'}', minAllocatedMem='6144'}), log id: 50873daa 2019-01-17 07:56:59,855-05 INFO [org.ovirt.engine.core.vdsbroker.SetAmountOfMemoryVDSCommand] (default task-22) [7059a48f] FINISH, SetAmountOfMemoryVDSCommand, log id: 50873daa 2019-01-17 07:56:59,862-05 INFO [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (default task-22) [7059a48f] EVENT_ID: HOT_SET_MEMORY(2,039), Hotset memory: changed the amount of memory on VM HostedEngine from 4096 to 4096 2019-01-17 07:56:59,881-05 WARN [org.ovirt.engine.core.bll.UpdateRngDeviceCommand] (default task-22) [28fd4c82] Validation of action 'UpdateRngDevice' failed for user admin@internal-authz. Reasons: ACTION_TYPE_FAILED_VM_IS_RUNNING 2019-01-17 07:56:59,882-05 ERROR [org.ovirt.engine.core.bll.UpdateVmCommand] (default task-22) [28fd4c82] Updating RNG device of VM HostedEngine (adf14389-1563-4b1a-9af6-4b40370a825b) failed. Old RNG device = VmRngDevice:{id='VmDeviceId:{deviceId='6435b2b5-163c-4f0c-934e-7994da60dc89', vmId='adf14389-1563-4b1a-9af6-4b40370a825b'}', device='virtio', type='RNG', specParams='[source=urandom]', address='', managed='true', plugged='true', readOnly='false', deviceAlias='', customProperties='null', snapshotId='null', logicalName='null', hostDevice='null'}. New RNG device = VmRngDevice:{id='VmDeviceId:{deviceId='6435b2b5-163c-4f0c-934e-7994da60dc89', vmId='adf14389-1563-4b1a-9af6-4b40370a825b'}', device='virtio', type='RNG', specParams='[source=urandom]', address='', managed='true', plugged='true', readOnly='false', deviceAlias='', customProperties='null', snapshotId='null', logicalName='null', hostDevice='null'}. This message repeats throughout engine.log: 2019-01-17 07:55:43,270-05 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engineScheduled-Thread-89) [] EVENT_ID: VM_MEMORY_UNDER_GUARANTEED_VALUE(148), VM HostedEngine on host ovirt-hv1.med.cornell.edu<http://ovirt-hv1.med.cornell.edu> was guaranteed 8192 MB but currently has 4224 MB As you can see attached the host has plenty of memory. Thank you Simone! Thanks, Douglas Duckworth, MSc, LFCS HPC System Administrator Scientific Computing Unit<https://scu.med.cornell.edu> Weill Cornell Medicine 1300 York Avenue New York, NY 10065 E: doug(a)med.cornell.edu<mailto:doug@med.cornell.edu> O: 212-746-6305 F: 212-746-8690 On Thu, Jan 17, 2019 at 5:09 AM Simone Tiraboschi <stirabos(a)redhat.com<mailto:stirabos@redhat.com>> wrote: On Wed, Jan 16, 2019 at 8:22 PM Douglas Duckworth <dod2014(a)med.cornell.edu<mailto:dod2014@med.cornell.edu>> wrote: Sorry for accidental send. Anyway I try to increase physical memory however it won't go above 4096MB. The hypervisor has 64GB. Do I need to modify this value with Hosted Engine offline? No, it's not required. Can you please attach your engine.log for the relevant time frame? Thanks, Douglas Duckworth, MSc, LFCS HPC System Administrator Scientific Computing Unit<https://scu.med.cornell.edu> Weill Cornell Medicine 1300 York Avenue New York, NY 10065 E: doug(a)med.cornell.edu<mailto:doug@med.cornell.edu> O: 212-746-6305 F: 212-746-8690 On Wed, Jan 16, 2019 at 1:58 PM Douglas Duckworth <dod2014(a)med.cornell.edu<mailto:dod2014@med.cornell.edu>> wrote: Hello I am trying to increase Hosted Engine physical memory above 4GB Thanks, Douglas Duckworth, MSc, LFCS HPC System Administrator Scientific Computing Unit<https://scu.med.cornell.edu> Weill Cornell Medicine 1300 York Avenue New York, NY 10065 E: doug(a)med.cornell.edu<mailto:doug@med.cornell.edu> O: 212-746-6305 F: 212-746-8690 _______________________________________________ Users mailing list -- users(a)ovirt.org<mailto:users@ovirt.org> To unsubscribe send an email to users-leave(a)ovirt.org<mailto:users-leave@ovirt.org> Privacy Statement: https://www.ovirt.org/site/privacy-policy/<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ovirt.org_site_pri…> oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ovirt.org_communit…> List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/WGSXQVVPJJ2CR…<https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.ovirt.org_archiv…>

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Re: Mounting CephFS
by Strahil 02 Mar '19

02 Mar '19

If you mean storage migration - could be possible. If it is about live migration between hosts - shouldn't happen. Anything in the logs ? Best Regards, Strahil NikolovOn Mar 2, 2019 09:23, Leo David <leoalex(a)gmail.com> wrote: > > Thank you Strahil, yes thought about that too, I'll give it a try. > Now ( to be a bit offtopic ), it seems that I can't live migrate the vm, even thought the cephfs mountpoint exists on all the hosts. > Could it be the fact that the storage type is "posix" and live migration not being possible ? > > Thank you ! > > On Sat, Mar 2, 2019, 04:05 Strahil <hunter86_bg(a)yahoo.com> wrote: >> >> Can you try to set the credentials in a file (don't recall where that was for ceph) , so you can mount without specifying user/pass ? >> >> Best Regards, >> Strahil Nikolov >> >> On Mar 1, 2019 13:46, Leo David <leoalex(a)gmail.com> wrote: >>> >>> Hi Everyone, >>> I am trying to mount cephfs as a posix storage domain and getting an error in vdsm.log, although the direct command run on the node " mount -t ceph 10.10.6.1:/sata/ovirt-data /cephfs-sata/ -o name=admin,secret=AQAzncZY0VyYHBAAoeeePdv8Rr5kZlW07EVhZZ== " works fine. I have configured: >>> Storage type: POSIX compliant FS >>> Path: 10.10.6.1:/sata/ovirt-data >>> VFS Type: ceph >>> Mount Options: name=admin,secret=AQAzncZY0VyYHBAAoeeePdv8Rr5kZlW07EVhZZ== >>> >>> >>> 2019-03-01 11:35:33,457+0000 INFO (jsonrpc/4) [storage.Mount] mounting 10.10.6.1:/sata/ovirt-data at /rhev/data-center/mnt/10.10.6.1:_sata_ovirt-data (mount:204) >>> 2019-03-01 11:35:33,464+0000 INFO (jsonrpc/0) [jsonrpc.JsonRpcServer] RPC call Host.ping2 succeeded in 0.00 seconds (__init__:312) >>> 2019-03-01 11:35:33,471+0000 ERROR (jsonrpc/4) [storage.HSM] Could not connect to storageServer (hsm:2414) >>> Traceback (most recent call last): >>> File "/usr/lib/python2.7/site-packages/vdsm/storage/hsm.py", line 2411, in connectStorageServer >>> conObj.connect() >>> File "/usr/lib/python2.7/site-packages/vdsm/storage/storageServer.py", line 180, in connect >>> six.reraise(t, v, tb) >>> File "/usr/lib/python2.7/site-packages/vdsm/storage/storageServer.py", line 172, in connect >>> self._mount.mount(self.options, self._vfsType, cgroup=self.CGROUP) >>> File "/usr/lib/python2.7/site-packages/vdsm/storage/mount.py", line 207, in mount >>> cgroup=cgroup) >>> File "/usr/lib/python2.7/site-packages/vdsm/common/supervdsm.py", line 56, in __call__ >>> return callMethod() >>> File "/usr/lib/python2.7/site-packages/vdsm/common/supervdsm.py", line 54, in <lambda> >>> **kwargs) >>> File "<string>", line 2, in mount >>> File "/usr/lib64/python2.7/multiprocessing/managers.py", line 773, in _callmethod >>> raise convert_to_error(kind, result) >>> MountError: (1, ';mount: unsupported option format: name=admin,secret=AQAzncZY0VyYHBAAoeeePdv8Rr5kZlW07EVhZZ==\n') >>> Any thoughts on this, what could it be wrong with the options field ? >>> Using oVirt 4.3.1 >>> Thank you very much and have a great day ! >>> >>> Leo >>> >>> -- >>> Best regards, Leo David

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Re: Mounting CephFS
by Strahil 02 Mar '19

02 Mar '19

Can you try to set the credentials in a file (don't recall where that was for ceph) , so you can mount without specifying user/pass ? Best Regards, Strahil NikolovOn Mar 1, 2019 13:46, Leo David <leoalex(a)gmail.com> wrote: > > Hi Everyone, > I am trying to mount cephfs as a posix storage domain and getting an error in vdsm.log, although the direct command run on the node " mount -t ceph 10.10.6.1:/sata/ovirt-data /cephfs-sata/ -o name=admin,secret=AQAzncZY0VyYHBAAoeeePdv8Rr5kZlW07EVhZZ== " works fine. I have configured: > Storage type: POSIX compliant FS > Path: 10.10.6.1:/sata/ovirt-data > VFS Type: ceph > Mount Options: name=admin,secret=AQAzncZY0VyYHBAAoeeePdv8Rr5kZlW07EVhZZ== > > > 2019-03-01 11:35:33,457+0000 INFO (jsonrpc/4) [storage.Mount] mounting 10.10.6.1:/sata/ovirt-data at /rhev/data-center/mnt/10.10.6.1:_sata_ovirt-data (mount:204) > 2019-03-01 11:35:33,464+0000 INFO (jsonrpc/0) [jsonrpc.JsonRpcServer] RPC call Host.ping2 succeeded in 0.00 seconds (__init__:312) > 2019-03-01 11:35:33,471+0000 ERROR (jsonrpc/4) [storage.HSM] Could not connect to storageServer (hsm:2414) > Traceback (most recent call last): > File "/usr/lib/python2.7/site-packages/vdsm/storage/hsm.py", line 2411, in connectStorageServer > conObj.connect() > File "/usr/lib/python2.7/site-packages/vdsm/storage/storageServer.py", line 180, in connect > six.reraise(t, v, tb) > File "/usr/lib/python2.7/site-packages/vdsm/storage/storageServer.py", line 172, in connect > self._mount.mount(self.options, self._vfsType, cgroup=self.CGROUP) > File "/usr/lib/python2.7/site-packages/vdsm/storage/mount.py", line 207, in mount > cgroup=cgroup) > File "/usr/lib/python2.7/site-packages/vdsm/common/supervdsm.py", line 56, in __call__ > return callMethod() > File "/usr/lib/python2.7/site-packages/vdsm/common/supervdsm.py", line 54, in <lambda> > **kwargs) > File "<string>", line 2, in mount > File "/usr/lib64/python2.7/multiprocessing/managers.py", line 773, in _callmethod > raise convert_to_error(kind, result) > MountError: (1, ';mount: unsupported option format: name=admin,secret=AQAzncZY0VyYHBAAoeeePdv8Rr5kZlW07EVhZZ==\n') > Any thoughts on this, what could it be wrong with the options field ? > Using oVirt 4.3.1 > Thank you very much and have a great day ! > > Leo > > -- > Best regards, Leo David

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impact of --emulate512 setting for VDO volumes
by Guillaume Pavese 02 Mar '19

02 Mar '19

Hello, We are planning to deploy VDO with oVirt 4.3 on centos 7.6 (on SSD devices). As oVirt does not support 4K devices yet, VDO volumes are created with the parameter "--emulate512 enabled" What are the implications of this setting? Does it impact performance? If so, is it IOPS or throughput that is impacted? What about reliability (is that mode equally tested as standard mode)? As I saw on RH Bugzilla, support for 4K devices in oVirt will need to wait at least for Centos 7.7 Once that is supported, would it be possible to transition/upgrade an emulate512 vdo volume to a standard one? Thanks, Guillaume Pavese Ingénieur Système et Réseau Interactiv-Group

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Re: oVirt Performance (Horrific)
by Strahil 02 Mar '19

02 Mar '19

Another option is to try nfs-ganesha - in my case I can reach 80MB/s sequential writes in the VM. Best Regards, Strahil NikolovOn Mar 1, 2019 00:15, Jayme <jaymef(a)gmail.com> wrote: > > Also one more thing, did you make sure to setup the 10Gb gluster network in ovirt and set migration and vm traffic to use the gluster network? > > On Thu, Feb 28, 2019 at 6:11 PM Jayme <jaymef(a)gmail.com> wrote: >> >> Check volumes in Ovirt admin and make sure the optimize volume for cm storage is selected >> >> I have a three node ovirt hci with ssd gluster backed storage and 10Gb storage network and I write at around 50-60 megabytes per second from within vms. Before I used the optimize for vm storage it was about 10x less. Iirc the optimize setting it suppose to get set by the installler by default but it wasn’t set in my case when I used cockpit to deploy (this was a little while ago on ovirt 4.2). Worth checking anyway. >> >> On Thu, Feb 28, 2019 at 4:51 PM Drew R <drew.rash(a)gmail.com> wrote: >>> >>> I expect VM's to be able to write at 200MB or 500MB to the hdd/ssd when using an NFS mount or gluster from inside a VM. >>> >>> But heck, it's not even 10% (20MB or 50MB), it's closer to 2.5%-5% of the speed of the drives. >>> >>> I expect windows services to not timeout due to slow hard drives while booting. >>> I expect a windows vm to boot in less than 6 minutes. >>> I expect to open chrome in less than 1 minute. >>> >>> :) I was hoping for like, at least half speed or quarter speed. I'd be ok with 50MBps or 100MBps. Writing. >>> >>> I think what I was expecting was out of the box it would perform. But there appears to be something we've done wrong, or a tweak we aren't doing. >>> >>> But we can't even run 1 windows vm at something anyone would remotely call "performs very well". >>> >>> Please guide me. Do you have any commands you want me to run? Or tests to do? Do you want a print out or a specific configuration you would like to try? >>> _______________________________________________ >>> Users mailing list -- users(a)ovirt.org >>> To unsubscribe send an email to users-leave(a)ovirt.org >>> Privacy Statement: https://www.ovirt.org/site/privacy-policy/ >>> oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ >>> List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/VLWJHKXBR3A4R…

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