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VDSM multipath.conf - prevent automatic management of local devices
by Ben Bradley 22 Nov '17

22 Nov '17

Hi All I have been running ovirt in a lab environment on CentOS 7 for several months but have only just got around to really testing things. I understand that VDSM manages multipath.conf and I understand that I can make changes to that file and set it to private to prevent VDSM making further changes. I don't mind VDSM managing the file but is it possible to set to prevent local devices being automatically added to multipathd? Many times I have had to flush local devices from multipath when they are added/removed or re-partitioned or the system is rebooted. It doesn't even look like oVirt does anything with these devices once they are setup in multipathd. I'm assuming it's the VDSM additions to multipath that are causing this. Can anyone else confirm this? Is there a way to prevent new or local devices being added automatically? Regards Ben

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Re: [ovirt-users] VDSM command GetVmsInfoVDS failed: Missing OVF file from VM
by Benny Zlotnik 22 Nov '17

22 Nov '17

+ ovirt-users On Sun, Nov 19, 2017 at 5:40 PM, Benny Zlotnik <bzlotnik(a)redhat.com> wrote: > Hi, > > There are a couple of issues here, can you please open a bug so we can > track this properly? https://bugzilla.redhat.com/ > and attach all relevant logs > > I went over the logs, are you sure the export domain was formatted > properly? Couldn't find it in the engine.log > Looking at the logs it seems VMs were found on the export domain > (id=3a514c90-e574-4282-b1ee-779602e35f24) > > 2017-11-19 13:18:13,007+0300 INFO (jsonrpc/2) [storage.StorageDomain] > vmList=[u'01a4f53e-699e-4ea5-aef4-458638f23ce9', > u'03c9e965-710d-4fc8-be06-583abbd1d7a9', u'07dab4f6-d677-4faa-9875-97bd6d601f49', > u'0b94a559-b31a-475d-9599-36e0dbea579a', u'13b42f3a-3057-4eb1-ad4b-f4e52f6ff196', > u'151a4e75-d67a-4603-8f52-abfb46cb74c1', u'177479f5-2ed8-4b6c-9120-ec067d1a1247', > u'18945b31-3ba5-4e54-9bf0-8fdc3a7d7411', u'1e72be16-f540-4cfd-b0e9-52b66220a98b', > u'1ec85134-a7b5-46c2-9c6c-eaba340c5ffd', u'20b88cfc-bfae-4983-8d83-ba4e0c7feeb7', > u'25fa96d1-6083-4daa-9755-026e632553d9', u'273ffd05-6f93-4e4a-aac9-149360b5f0b4', > u'28188426-ae8b-4999-8e31-4c04fbba4dac', u'28e9d5f2-4312-4d0b-9af9-ec1287bae643', > u'2b7093dc-5d16-4204-b211-5b3a1d729872', u'32ecfcbb-2678-4f43-8d59-418e03920693', > u'3376ef0b-2af5-4a8b-9987-18f28f6bb334', u'34d1150f-7899-44d9-b8cf-1c917822f624', > u'383bbfc6-6841-4476-b108-a1878ed9ce43', u'388e372f-b0e8-408f-b21b-0a5c4a84c457', > u'39396196-42eb-4a27-9a57-a3e0dad8a361', u'3fc02ca2-7a03-4d5e-bc21-688f138a914f', > u'4101ac1e-0582-4ebe-b4fb-c4aed39fadcf', u'44e10588-8047-4734-81b3-6a98c229b637', > u'4794ca9c-5abd-4111-b19c-bdfbf7c39c86', u'47a83986-d3b8-4905-b017-090276e967f5', > u'49d83471-a312-412e-b791-8ee0badccbb5', u'4b1b9360-a48a-425b-9a2e-19197b167c99', > u'4d783e2a-2d81-435a-98c4-f7ed862e166b', u'51976b6e-d93f-477e-a22b-0fa84400ff84', > u'56b77077-707c-4949-9ea9-3aca3ea912ec', u'56dc5c41-6caf-435f-8146-6503ea3eaab9', > u'5729e036-5f6e-473b-9d1d-f1c4c5c55b2d', u'5873f804-b992-4559-aff5-797f97bfebf7', > u'58b7a4ea-d572-4ab4-a4f1-55dddc5dc8e8', u'590d1adb-52e4-4d29-af44-c9aa5d328186', > u'5c79f970-6e7b-4996-a2ce-1781c28bff79', u'5feab1f2-9a3d-4870-a0f3-fd97ea3c85c3', > u'63749307-4486-4702-ade9-4324f5bfe80c', u'6555ac11-7b20-4074-9d71-f86bc10c01f9', > u'66b4b8a0-b53b-40ea-87ab-75f6d9eef728', u'672c4e12-628f-4dcd-a57e-b4ff822a19f3', > u'679c0445-512c-4988-8903-64c0c08b5fab', u'6ae337d0-e6a0-489f-82e6-57a85f63176a', > u'6d713cb9-993d-4822-a030-ac7591794050', u'72a50ef0-945d-428a-a336-6447c4a70b99', > u'751dfefc-9e18-4f26-bed6-db412cdb258c', u'7587db59-e840-41bc-96f3-b212b7b837a4', > u'778c969e-1d22-46e3-bdbe-e20e0c5bb967', u'7810dec1-ee1c-4291-93f4-18e9a15fa8e2', > u'7a6cfe35-e493-4c04-8fc6-e0bc72efc72d', u'7a7d814e-4586-40d5-9750-8896b00a6490', > u'7af76921-4cf2-4c3c-9055-59c24d9e8b08', u'7d781e21-6613-41f4-bcea-8b57417e1211', > u'7da51499-d7db-49fd-88f6-bcac30e5dd86', u'850a8041-77a4-4ae3-98f9-8d5f3a5778e6', > u'85169fe8-8198-492f-b988-b8e24822fd01', u'87839926-8b84-482b-adec-5d99573edd9e', > u'8a7eb414-71fa-4f91-a906-d70f95ccf995', u'8a9a1071-b005-4448-ba3f-c72bd7e0e34b', > u'8b73e593-8513-4a8e-b051-ce91765b22bd', u'8cbd5615-4206-4e4a-992d-8705b2f2aac2', > u'92e9d966-c552-4cf9-b84a-21dda96f3f81', u'95209226-a9a5-4ada-8eed-a672d58ba72c', > u'986ce2a5-9912-4069-bfa9-e28f7a17385d', u'9f6c8d1d-da81-4020-92e5-1c14cf082d2c', > u'9ff87197-d089-4b2d-8822-b0d6f6e67292', u'a0a0c756-fbe9-4f8e-b6e9-1f2d58f1d957', > u'a46d5615-8d9f-4944-9334-2fca2b53c27e', u'a6a50244-366b-4b7c-b80f-04d7ce2d8912', > u'aa6a4de6-cc9e-4d79-a795-98326bbd83db', u'accc0bc3-c501-4f0b-aeeb-6858f7e894fd', > u'b09e5783-6765-4514-a5a3-86e5e73b729b', u'b1ecfe29-7563-44a9-b814-0faefac5465b', > u'baa542e1-492a-4b1b-9f54-e9566a4fe315', u'bb91f9f5-98df-45b1-b8ca-9f67a92eef03', > u'bd11f11e-be3d-4456-917c-f93ba9a19abe', u'bee3587e-50f4-44bc-a199-35b38a19ffc5', > u'bf573d58-1f49-48a9-968d-039e0916c973', u'c01d466a-8ad8-4afe-b383-e365deebc6b8', > u'c0be5c12-be26-47b7-ad26-3ec2469f1d3f', u'c31f4f53-c22b-40ff-8408-f36f591f55b5', > u'c530e339-99bf-48a2-a63a-cfd2a4dba198', u'c8a610c8-72e5-4217-b4d9-130f85db1db7', > u'ca0567e1-d445-4875-94b1-85e31f331b87', u'd2c3dab7-eb8c-410e-87c1-3d0139d9903c', > u'd330c4b6-bfa0-4061-aa1a-0f016598f2d0', u'd5626b82-5079-4c42-84f5-fd972b493841', > u'd740e080-701d-4e07-becb-2b065a27e44b', u'd85ceb8e-410a-4d71-af9f-0ffeac1dbd92', > u'd92b3d02-ec66-4431-8cdc-f039d8b7bb12', u'dc8cd6e5-4f0d-4df9-adc6-bede342a1cff', > u'df3b363f-b76e-44f0-afe3-1704cb1025e8', u'e38e2e52-d85b-4386-a319-97b625b5483c', > u'e6e02885-4f85-4968-a09c-151403811733', u'e751a33c-c7de-4d06-a8dc-ef522f604b75', > u'edc862cf-f345-4f2f-ac3b-014a27a8f29f', u'eeb8a3c5-8995-40cb-91c6-3097f7bc8254', > u'f2b20f6d-5a6a-4498-b305-db558a22af48', u'f4429fa5-76a2-45a7-ae3e-4d8955d4f1a6', > u'f8acf745-eee9-4509-8658-c5e569fbb4ef', u'fb9a7e78-fe58-4f79-a4e9-ee574200207f', > u'fdf5f646-b25c-4000-8984-5e90a5b2c034'] (sd:906) > > f4429fa5-76a2-45a7-ae3e-4d8955d4f1a6 - the offending VM is there. Can you > see if there's anything in the directory? The path should be something like > /rhev/data-center/mnt/...../3a514c90-e574-4282-b1ee-779602 > e35f24/master/vms/f4429fa5-76a2-45a7-ae3e-4d8955d4f1a6 > You can try and remove it manually. > > On Sun, Nov 19, 2017 at 1:04 PM, Алексей Максимов < > aleksey.i.maksimov(a)yandex.ru> wrote: > >> Hello, Benny >> >> Logs attached. >> >> 19.11.2017, 13:42, "Benny Zlotnik" <bzlotnik(a)redhat.com>: >> >> Hi, >> >> Please attach full engine and vdsm logs >> >> On Sun, Nov 19, 2017 at 12:26 PM, Алексей Максимов < >> aleksey.i.maksimov(a)yandex.ru> wrote: >> >> >> Hello, oVirt guru`s! >> >> oVirt Engine Version: 4.1.6.2-1.el7.centos >> >> Some time ago the problems started with the oVirt administrative web >> console. >> When I try to open the sup-tab "Template import" for Export domain on tab >> "Storage" I get the error in sub-tub "Alerts" >> >> VDSM command GetVmsInfoVDS failed: Missing OVF file from VM: >> (u'f4429fa5-76a2-45a7-ae3e-4d8955d4f1a6',) >> >> All storages on tab "Storage" mark as down in web console. >> The SPM-role begins frantically be transmitted from one host to another. >> Screenshot attached. >> >> All virtual machines at the same time working without stop >> But I can't get a list of VMS stored on Export domain storage. >> >> Recently this problem appeared and I deleted Export domain storage. >> I completely deleted the Export domain storage from oVirt, formatted it, >> and then attached again to the oVirt >> The problem is repeated again. >> >> Please help to solve this problem. >> >> -- >> With best wishes, >> Aleksey.I.Maksimov >> >> _______________________________________________ >> Users mailing list >> Users(a)ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> >> >> >> >> -- >> С наилучшими пожеланиями, >> Максимов Алексей >> >> Email: Aleksey.I.Maksimov(a)Yandex.ru >> >> > >

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multiple ip routing table issue
by Edward Clay 22 Nov '17

22 Nov '17

Hello, We have an issue where hosts are configured with the public facing nework interface as the ovirtmgmt network and it's default route is added to a ovirt created table but not to the main routing table. From my searching I've found this snippet from https://www.ovirt.org/develop /release-management/features/network/multiple-gateways/ which seems to explain why I can't ping anything or communicate with any other system needing a default route. "And finally, here's the host's main routing table. Any traffic coming in to the host will use the ip rules and an interface's routing table. The main routing table is only used for traffic originating from the host." I'm seeing the following main and custom ovirt created tables. main: # ip route show table main 10.0.0.0/8 via 10.4.16.1 dev enp3s0.106 10.4.16.0/24 dev enp3s0.106 proto kernel scope link src 10.4.16.15 1.1.1.0/24 dev PUBLICB proto kernel scope link src 1.1.1.1 169.254.0.0/16 dev enp6s0 scope link metric 1002 169.254.0.0/16 dev enp3s0 scope link metric 1003 169.254.0.0/16 dev enp7s0 scope link metric 1004 169.254.0.0/16 dev enp3s0.106 scope link metric 1020 169.254.0.0/16 dev PRIVATE scope link metric 1022 169.254.0.0/16 dev PUBLIC scope link metric 1024 table 1138027711 # ip route show table 1138027711 default via 1.1.1.1 dev PUBLIC 1.1.1.0/24 via 1.1.1.1 dev PUBLIC If I manually execute the following command to add the default route as well to the main table I can ping ouside of the local network. ip route add 0.0.0.0/0 via 1.1.1.1 dev PUBLIC If I attempt to modify the /etc/sysconfig/network-scripts/route-PUBLIC ad reboot the server ad one would think this file is recreated by vdsm on boot. What I'm looking for is the correct way to setup a default gateway for the main routing table so the hosts can get OS updates and communicate with the outside world.

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New post on oVirt blog: LLDP Information Now Available via the Administration Portal
by John Marks 22 Nov '17

22 Nov '17

Hello! Just a quick heads up that there is a new post on the oVirt blog: LLDP Information Now Available via the Administration Portal <https://ovirt.org/blog/2017/11/webadmin-lldp/> In a nutshell: oVirt 4.2 now includes support for the LLDP protocol, for easy management of network resources. The LLDP protocol simplifies life for administrators handling complex networks. Read the post. <https://ovirt.org/blog/2017/11/webadmin-lldp/> See you on the oVirt blog! Best, John -- John Marks Technical Writer, oVirt redhat Israel Cell: +972 52 8644 491 -- John Marks Technical Writer, oVirt redhat Israel Cell: +972 52 8644 491

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iSCSI multipathing missing tab
by Nicolas Ecarnot 22 Nov '17

22 Nov '17

Hello, oVirt 4.1.6.2-1.el7.centos Under the datacenter section, I see no iSCSI multipathing tab. As I'm building this new DC, could this be because this DC is not yet initialized? -- Nicolas ECARNOT

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oVirt node and NFS
by Magnus Isaksson 22 Nov '17

22 Nov '17

--_000_HE1PR0701MB2316E516FF53B8459D8A41D1C9220HE1PR0701MB2316_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi, This is probably an easy thing, but I can't seem to find the solution. On my oVirt node 4.1 I have some NFS shares that I want other hosts to reac= h, but I noticed that the firewall is not open for that on the host. So, how to I configure the Nodes firewall? Regards Magnus Isaksson --_000_HE1PR0701MB2316E516FF53B8459D8A41D1C9220HE1PR0701MB2316_ 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-micr= osoft-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=3D"Generator" content=3D"Microsoft Word 15 (filtered medium)"> <style></style> </head> <body lang=3D"SV" link=3D"#0563C1" vlink=3D"#954F72"> <div class=3D"WordSection1"> Hi,<o:p></o:p> <o:p> </o:p> This is probably an easy thing,= but I can’t seem to find the solution.<o:p></o:p> <o:p> </o:p> On my oVirt node 4.1 I have som= e NFS shares that I want other hosts to reach, but I noticed that the firew= all is not open for that on the host.<o:p></o:p> So, how to I configure the Node= s firewall? <o:p></o:p> <o:p> </o:p> Regards<o:p></o:p> Magnus Isaksson<o:p></o:p></spa= n> <o:p> </o:p> </div> </body> </html> --_000_HE1PR0701MB2316E516FF53B8459D8A41D1C9220HE1PR0701MB2316_--

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Need advise/help/ideas to implement a two sites disaster-recovery with ovirt
by wodel youchi 21 Nov '17

21 Nov '17

Hi, We want to implement two sites with ovirt and have disaster-recovery, if site one is unreachable, then site two takes-over. We will be using iSCSI for Data domains Our initial idea is : - install the first site : - self-hosted engine - iscsi blocks for data domains - install the second site: - self-hosted engine. - iscsi blocks for data domain. Use the snapshot synchronization of the disk-array to sync iscsi blocks/volumes. The two self-hosted engine will be independent. In case of a failure : - break the synchronization - Access the data domain in site two - start the VMs. oVirt does not manage replication of VMs itself, someone may argue that it's not it's purpose, but what about selecting the VMs to replicate?? in case of NFS we may (I don't know really if it's possible) have some access to the VMs disk files, but in block mode with LVM in it, things become complicated. So if someone has implemented such architecture, could you please share the experience, give advice and ideas on how to best implement this. Regards. <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> Garanti sans virus. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

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Issue with ovirt-ansible-roles
by Luca 'remix_tj' Lorenzetto 21 Nov '17

21 Nov '17

Hello, i'm playing with ovirt-ansible-roles for building a standard configuration to be applied to all my ovirt setups. I downloaded ovirt-ansible-roles 1.1.1 from github and unpacked examples, playbooks and roles on a directory (/ansible/ovirt-ansible-roles/). I created then this playbook: ==8<==8<==8<==8<==8<== ovirt_infra.yml ==8<==8<==8<==8<==8<==8<=== --- - name: oVirt infra hosts: localhost connection: local gather_facts: false vars_files: - ovirt_infra_vars.yml - passwords.yml pre_tasks: - name: Login to oVirt ovirt_auth: url: "{{ engine_url }}" username: "{{ engine_user }}" password: "{{ engine_password }}" ca_file: "{{ engine_cafile | default(omit) }}" insecure: "{{ engine_insecure | default(true) }}" tags: - always - name: Generate Hosts list set_fact: hosts: "{{ hosts|default([]) + [ {'name': item.key, 'address': item.key, 'cluster': item.value.cluster, 'password': item.value.password|default('defaultpwd') } ] }}" with_dict: "{{ hosts_map }}" roles: - ovirt-infra post_tasks: - name: Logout from oVirt ovirt_auth: state: absent ovirt_auth: "{{ ovirt_auth }}" tags: - always ==8<==8<==8<==8<==8<==8<==8<==8<==8<==8<==8<==8<==8<==8<==8<=== file passwords.yml declares engine_password, ovirt_infra_vars.yml instead contain this vars: ==8<==8<==8<==8<==8<==8<== ovirt_infra_vars.yml ==8<==8<==8<==8<==8<=== --- engine_url: https://ovirtengine.intranet.company/ovirt-engine/api engine_user: admin@internal engine_insecure: True compatibility_version: 4.1 data_center_name: Default hosts_map: fltiovirt001.intranet.company: cluster: production clusters: - name: production cpu_type: Intel Westmere Family profile: production ==8<==8<==8<==8<==8<==8<==8<==8<==8<==8<==8<==8<==8<==8<==8<=== I did some pre-flight checks and everything seems ok: playbooks > ansible --version ansible 2.4.0.0 config file = /ansible/ovirt-ansible-roles/playbooks/ansible.cfg configured module search path = [u'/home/remixtj/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules'] ansible python module location = /usr/lib/python2.7/site-packages/ansible executable location = /usr/bin/ansible python version = 2.7.5 (default, May 3 2017, 07:55:04) [GCC 4.8.5 20150623 (Red Hat 4.8.5-14)] playbooks > rpm -qa python-ovirt* python-ovirt-engine-sdk4-4.1.6-1.el7ev.x86_64 So i hope that everything goes smooth, but... playbooks > ansible-playbook ovirt_infra.yml [DEPRECATION WARNING]: The use of 'include' for tasks has been deprecated. Use 'import_tasks' for static inclusions or 'include_tasks' for dynamic inclusions. This feature will be removed in a future release. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg. [DEPRECATION WARNING]: include is kept for backwards compatibility but usage is discouraged. The module documentation details page may explain more about this rationale.. This feature will be removed in a future release. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg. PLAY [oVirt infra] *********************************************************************************************************************************** TASK [Login to oVirt] ******************************************************************************************************************************** ok: [localhost] TASK [Generate Hosts list] *************************************************************************************************************************** ok: [localhost] => (item={'key': u'fltiovirt001.intranet.company, 'value': {u'cluster': u'production'}}) TASK [ovirt-mac-pools : set mac pools] *************************************************************************************************************** TASK [ovirt-datacenters : Add data center] *********************************************************************************************************** An exception occurred during task execution. To see the full traceback, use -vvv. The error was: Error: Failed to read response. [DEPRECATION WARNING]: The 'ovirt_datacenters' module is being renamed 'ovirt_datacenter'. This feature will be removed in version 2.8. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg. fatal: [localhost]: FAILED! => {"changed": false, "failed": true, "msg": "Failed to read response."} PLAY RECAP ******************************************************************************************************************************************* localhost : ok=2 changed=0 unreachable=0 failed=1 If i run with -vvv i get this traceback and details when running the task TASK [ovirt-datacenters : Add data center] The full traceback is: Traceback (most recent call last): File "/tmp/ansible_mmZ02F/ansible_module_ovirt_datacenters.py", line 215, in main ret = clusters_module.create() File "/tmp/ansible_mmZ02F/ansible_modlib.zip/ansible/module_utils/ovirt.py", line 537, in create entity = self.search_entity(search_params) File "/tmp/ansible_mmZ02F/ansible_modlib.zip/ansible/module_utils/ovirt.py", line 773, in search_entity entity = search_by_attributes(self._service, name=self._module.params['name']) File "/tmp/ansible_mmZ02F/ansible_modlib.zip/ansible/module_utils/ovirt.py", line 230, in search_by_attributes search=' and '.join('{}={}'.format(k, v) for k, v in kwargs.items()) File "/usr/lib64/python2.7/site-packages/ovirtsdk4/services.py", line 4453, in list return self._internal_get(headers, query, wait) File "/usr/lib64/python2.7/site-packages/ovirtsdk4/service.py", line 202, in _internal_get return future.wait() if wait else future File "/usr/lib64/python2.7/site-packages/ovirtsdk4/service.py", line 52, in wait response = self._connection.wait(self._context) File "/usr/lib64/python2.7/site-packages/ovirtsdk4/__init__.py", line 460, in wait return self.__wait(context, failed_auth) File "/usr/lib64/python2.7/site-packages/ovirtsdk4/__init__.py", line 468, in __wait raise Error("Failed to read response.") Error: Failed to read response. [DEPRECATION WARNING]: The 'ovirt_datacenters' module is being renamed 'ovirt_datacenter'. This feature will be removed in version 2.8. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg. fatal: [localhost]: FAILED! => { "changed": false, "failed": true, "invocation": { "module_args": { "comment": null, "compatibility_version": "4.1", "description": null, "fetch_nested": false, "local": false, "mac_pool": null, "name": "Default", "nested_attributes": [], "poll_interval": 3, "quota_mode": null, "state": "present", "timeout": 180, "wait": true } }, "msg": "Failed to read response." } What's wrong with the response? The engine i want to manage is running oVirt Engine Version: 4.1.0.3-1.el7.centos I can upgrade, but i'd like also to test the playbook for upgrading the infrastructure... Luca -- "E' assurdo impiegare gli uomini di intelligenza eccellente per fare calcoli che potrebbero essere affidati a chiunque se si usassero delle macchine" Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716) "Internet è la più grande biblioteca del mondo. Ma il problema è che i libri sono tutti sparsi sul pavimento" John Allen Paulos, Matematico (1945-vivente) Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , <lorenzetto.luca(a)gmail.com>

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Re: [ovirt-users] Some tests results: lustrefs over nfs on VM
by Yaniv Kaul 21 Nov '17

21 Nov '17

On Nov 19, 2017 11:05 PM, "Arman Khalatyan" <arm2arm(a)gmail.com> wrote: hi Yaniv, yes for sure I hit some cache in between but not the vm cache, it has a 4GB ram, with oflag=direct I get about 120MB/s for the data analysis the cache is our friend:) The backend is a lustrefs 2.10.x. yes we have dedicated 10G on the hosts, where we can limit the vm interface to 10Gbit? Define QoS on the NIC. But I think you wish to limit IO, no? Y. Am 19.11.2017 8:33 nachm. schrieb "Yaniv Kaul" <ykaul(a)redhat.com>: On Sun, Nov 19, 2017 at 7:08 PM, Arman Khalatyan <arm2arm(a)gmail.com> wrote: > 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 > Without oflag=direct, you are hitting (somewhat) the cache. > > of=/test/tmp/test.tmp > 100000+0 records in > 100000+0 records out > 13107200000 <(310)%20720-0000> bytes (13 GB) copied, 20.8402 s, 629 MB/s > looks promising for the future deployments. > Very - what's the backend storage? > > 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?? > Yes, but you really need a dedicated storage interface, no? Y. > > > thank you beforehand, > Arman. > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > >

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Openshift in VMs created from oVirt
by Wayna Runa 21 Nov '17

21 Nov '17

Hi there!, I've oVirt running and providing several VMs (CentOS and RedHat), now I want to provide VMs with minimalist Openshift cluster running inside to developers. Minishift creates a VM with Openshift locally, that is fine, but now we have oVirt to provide VMs which the developers can get access remotely. How I can use oVirt to do that?. Thanks in advance. -- *Wayna Runa*

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