oVirt - Scaling out from one to many

Hello everyone, I have two things that i really need to understand regarding storage scaling using gluster. Basically, I am trying to figure out a way to go from 1 single instance to multiple nodes cluster. 1. Single node SelfHosted Engine HyperConverged setup - scale instance up to 3 nodes: - the gluster volumes are created as distributed type. - is there a procedure to migate this single-host scenario to multiple nodes, considering that the 3 nodes setup is using replica 3 gluster volumes ? 2. 3 Nodes SelfHosted Engine - add more storage nodes - how should I increase the size of the already present replica 3 volumes ? - should the volumes be as distribute-replicated in an environment larger than 3 nodes ? 3. Is there a limit as a maximum number of compute nodes per cluster ? Thank you very much ! Leo -- Best regards, Leo David

Hi, Any thoughts on this, or have anyone been in this situation to scale out a single instance to multiple nodes ? Thank you, Have a nice day ! On Thu, Jul 5, 2018, 14:16 Leo David <leoalex@gmail.com> wrote:
Hello everyone, I have two things that i really need to understand regarding storage scaling using gluster.
Basically, I am trying to figure out a way to go from 1 single instance to multiple nodes cluster.
1. Single node SelfHosted Engine HyperConverged setup - scale instance up to 3 nodes: - the gluster volumes are created as distributed type. - is there a procedure to migate this single-host scenario to multiple nodes, considering that the 3 nodes setup is using replica 3 gluster volumes ?
2. 3 Nodes SelfHosted Engine - add more storage nodes - how should I increase the size of the already present replica 3 volumes ? - should the volumes be as distribute-replicated in an environment larger than 3 nodes ?
3. Is there a limit as a maximum number of compute nodes per cluster ?
Thank you very much !
Leo
-- Best regards, Leo David

2018-07-05 13:16 GMT+02:00 Leo David <leoalex@gmail.com>:
Hello everyone, I have two things that i really need to understand regarding storage scaling using gluster.
Basically, I am trying to figure out a way to go from 1 single instance to multiple nodes cluster.
1. Single node SelfHosted Engine HyperConverged setup - scale instance up to 3 nodes: - the gluster volumes are created as distributed type. - is there a procedure to migate this single-host scenario to multiple nodes, considering that the 3 nodes setup is using replica 3 gluster volumes ?
Sahina, a quick check on the oVirt website didn't help me finding the documentation for Leo. Can you please assist?
2. 3 Nodes SelfHosted Engine - add more storage nodes - how should I increase the size of the already present replica 3 volumes ? - should the volumes be as distribute-replicated in an environment larger than 3 nodes ?
Couldn't find documentation on ovirt.org site, but this should apply to your case: https://access.redhat.com/documentation/en-us/red_hat_hyperconverged_infrast... Sahina, can you help preparing some documentation for ovirt.org as well?
3. Is there a limit as a maximum number of compute nodes per cluster ?
I'm not aware of limits but according to above document I won't go over the 9 nodes in this configuration.
Thank you very much !
Leo
-- Best regards, Leo David
_______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@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/VIU4T447JRNYZ2HBF366JLWYTE3W42CZ/
-- SANDRO BONAZZOLA MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV Red Hat EMEA <https://www.redhat.com/> sbonazzo@redhat.com <https://red.ht/sig>

Thank you very much Sandro, I really apreciate your help. Looking further for issue 1. suggestions. Have a nice day ! Leo On Fri, Jul 6, 2018, 15:08 Sandro Bonazzola <sbonazzo@redhat.com> wrote:
2018-07-05 13:16 GMT+02:00 Leo David <leoalex@gmail.com>:
Hello everyone, I have two things that i really need to understand regarding storage scaling using gluster.
Basically, I am trying to figure out a way to go from 1 single instance to multiple nodes cluster.
1. Single node SelfHosted Engine HyperConverged setup - scale instance up to 3 nodes: - the gluster volumes are created as distributed type. - is there a procedure to migate this single-host scenario to multiple nodes, considering that the 3 nodes setup is using replica 3 gluster volumes ?
Sahina, a quick check on the oVirt website didn't help me finding the documentation for Leo. Can you please assist?
2. 3 Nodes SelfHosted Engine - add more storage nodes - how should I increase the size of the already present replica 3 volumes ? - should the volumes be as distribute-replicated in an environment larger than 3 nodes ?
Couldn't find documentation on ovirt.org site, but this should apply to your case: https://access.redhat.com/documentation/en-us/red_hat_hyperconverged_infrast... Sahina, can you help preparing some documentation for ovirt.org as well?
3. Is there a limit as a maximum number of compute nodes per cluster ?
I'm not aware of limits but according to above document I won't go over the 9 nodes in this configuration.
Thank you very much !
Leo
-- Best regards, Leo David
_______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@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/VIU4T447JRNYZ2...
--
SANDRO BONAZZOLA
MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV
Red Hat EMEA <https://www.redhat.com/>
sbonazzo@redhat.com <https://red.ht/sig>

On Fri, Jul 6, 2018 at 5:37 PM, Sandro Bonazzola <sbonazzo@redhat.com> wrote:
2018-07-05 13:16 GMT+02:00 Leo David <leoalex@gmail.com>:
Hello everyone, I have two things that i really need to understand regarding storage scaling using gluster.
Basically, I am trying to figure out a way to go from 1 single instance to multiple nodes cluster.
1. Single node SelfHosted Engine HyperConverged setup - scale instance up to 3 nodes: - the gluster volumes are created as distributed type. - is there a procedure to migate this single-host scenario to multiple nodes, considering that the 3 nodes setup is using replica 3 gluster volumes ?
Sahina, a quick check on the oVirt website didn't help me finding the documentation for Leo. Can you please assist?
To move from a single host to multiple host, you can add additional hosts to your cluster via Ovirt. Distribute volume can be changed to a replica 3 volume - but ensure there's no ongoing I/O. The easier process is to add new replica 3 volumes and move your VM disks to it - for the VMs that require HA.
2. 3 Nodes SelfHosted Engine - add more storage nodes - how should I increase the size of the already present replica 3 volumes ? - should the volumes be as distribute-replicated in an environment larger than 3 nodes ?
Couldn't find documentation on ovirt.org site, but this should apply to your case: https://access.redhat.com/documentation/en-us/red_ hat_hyperconverged_infrastructure/1.1/html/maintaining_red_hat_ hyperconverged_infrastructure/scaling#scaling_rhhi_by_ adding_additional_volumes_on_new_nodes Sahina, can you help preparing some documentation for ovirt.org as well?
Sure, contributions are welcome though - Leo, if you feel like pitching in
3. Is there a limit as a maximum number of compute nodes per cluster ?
I'm not aware of limits but according to above document I won't go over the 9 nodes in this configuration.
Thank you very much !
Leo
-- Best regards, Leo David
_______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/communit y/about/community-guidelines/ List Archives: https://lists.ovirt.org/archiv es/list/users@ovirt.org/message/VIU4T447JRNYZ2HBF366JLWYTE3W42CZ/
--
SANDRO BONAZZOLA
MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV
Red Hat EMEA <https://www.redhat.com/>
sbonazzo@redhat.com <https://red.ht/sig>

Thank you very much, very usefull information. I will proceed with different scenarios, depending on client's environment. Have a nice day, Leo On Mon, Jul 9, 2018 at 2:56 PM, Sahina Bose <sabose@redhat.com> wrote:
On Fri, Jul 6, 2018 at 5:37 PM, Sandro Bonazzola <sbonazzo@redhat.com> wrote:
2018-07-05 13:16 GMT+02:00 Leo David <leoalex@gmail.com>:
Hello everyone, I have two things that i really need to understand regarding storage scaling using gluster.
Basically, I am trying to figure out a way to go from 1 single instance to multiple nodes cluster.
1. Single node SelfHosted Engine HyperConverged setup - scale instance up to 3 nodes: - the gluster volumes are created as distributed type. - is there a procedure to migate this single-host scenario to multiple nodes, considering that the 3 nodes setup is using replica 3 gluster volumes ?
Sahina, a quick check on the oVirt website didn't help me finding the documentation for Leo. Can you please assist?
To move from a single host to multiple host, you can add additional hosts to your cluster via Ovirt. Distribute volume can be changed to a replica 3 volume - but ensure there's no ongoing I/O. The easier process is to add new replica 3 volumes and move your VM disks to it - for the VMs that require HA.
2. 3 Nodes SelfHosted Engine - add more storage nodes - how should I increase the size of the already present replica 3 volumes ? - should the volumes be as distribute-replicated in an environment larger than 3 nodes ?
Couldn't find documentation on ovirt.org site, but this should apply to your case: https://access.redhat.com/documentation/en-us/red_hat_ hyperconverged_infrastructure/1.1/html/maintaining_red_hat_h yperconverged_infrastructure/scaling#scaling_rhhi_by_adding_ additional_volumes_on_new_nodes Sahina, can you help preparing some documentation for ovirt.org as well?
Sure, contributions are welcome though - Leo, if you feel like pitching in
3. Is there a limit as a maximum number of compute nodes per cluster ?
I'm not aware of limits but according to above document I won't go over the 9 nodes in this configuration.
Thank you very much !
Leo
-- Best regards, Leo David
_______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/communit y/about/community-guidelines/ List Archives: https://lists.ovirt.org/archiv es/list/users@ovirt.org/message/VIU4T447JRNYZ2HBF366JLWYTE3W42CZ/
--
SANDRO BONAZZOLA
MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV
Red Hat EMEA <https://www.redhat.com/>
sbonazzo@redhat.com <https://red.ht/sig>
-- Best regards, Leo David
participants (3)
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Leo David
-
Sahina Bose
-
Sandro Bonazzola