Hi Punit, If you are using gluster volume for virt store, it is always recommend to enable /considering virt store use case mentioned here : http://gluster.org/documentation/use_cases/Virt-store-usecase/ Regarding how to add bricks to the volume , you can refer # https://access.redhat.com/documentation/en-US/Red_Hat_Storage/2.1/html/Ad... The virt store use case enables quorum which ideally resolves the possibilities of split brain. Please feel free to revert if you come across any issues. --Humble On Fri, Aug 15, 2014 at 12:05 PM, Punit Dambiwal <hypunit(a)gmail.com&gt; wrote: > Hi, > > I have 4 node GlusterFS Distributed Replicate volume...the same 4 host > node i am using for compute purpose....now i want to make it HA....so if > any host goes down .....VM will not pause and it will migrate to another > available node... > > 1. Can any one have any document or reference to do this with > keepalived... > 2. I have one more node as spare...so if any host goes down and can not > come up again because of any HW failure...i can add it...but i didn't find > any way to add these bricks to volume...?? > > Thanks, > Punit > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > >

Hi, >> ....but i want the way from the ovirt portal...if possible ?? >> Yes, its possible. >> Also in my case if the mount point HV node goes down...all the VM's will pause...and once the node come up..i need to manually poweroff the VM's and manually start again... >> I failed to interpret 'mount point' here. If you are talking about 'gluster' volume server , the VM behaviour depends on the gluster configuration which indirectly depend on the quorum configuration and volume configuration. If there is an error from underlying storage ( here gluster volume) VM can pause , however latest versions of ovirt support auto resume. >> Someone from community suggest me to use the localhost as mount point if you are using compute & storage on the same node...but i doubt about the failover...that means if any node goes down....how the VM migration on another node will happen ?? >> If you are using local data center the VM migration can't happen. You have to configure a storage domain which can be accessed from your Ovirt Cluster Hosts . Please have a look at http://www.ovirt.org/Gluster_Storage_Domain_Reference which talks about the recommended way of configuring it. --Humble On Tue, Aug 19, 2014 at 7:26 AM, Punit Dambiwal <hypunit(a)gmail.com&gt; wrote: > Hi Humble, > > Thanks for the updates....but i want the way from the ovirt portal...if > possible ?? > > Also in my case if the mount point HV node goes down...all the VM's will > pause...and once the node come up..i need to manually poweroff the VM's and > manually start again... > > Someone from community suggest me to use the localhost as mount point if > you are using compute & storage on the same node...but i doubt about the > failover...that means if any node goes down....how the VM migration on > another node will happen ?? > > Thanks, > Punit > > > On Mon, Aug 18, 2014 at 9:37 PM, Humble Devassy Chirammal < > humble.devassy(a)gmail.com&gt; wrote: > >> Hi Punit, >> >> >> If you are using gluster volume for virt store, it is always recommend >> to enable /considering virt store use case mentioned here : >> http://gluster.org/documentation/use_cases/Virt-store-usecase/ >> >> Regarding how to add bricks to the volume , you can refer # >> https://access.redhat.com/documentation/en-US/Red_Hat_Storage/2.1/html/Ad... >> >> The virt store use case enables quorum which ideally resolves the >> possibilities of split brain. >> >> Please feel free to revert if you come across any issues. >> >> --Humble >> >> >> On Fri, Aug 15, 2014 at 12:05 PM, Punit Dambiwal <hypunit(a)gmail.com&gt; >> wrote: >> >>> Hi, >>> >>> I have 4 node GlusterFS Distributed Replicate volume...the same 4 host >>> node i am using for compute purpose....now i want to make it HA....so if >>> any host goes down .....VM will not pause and it will migrate to another >>> available node... >>> >>> 1. Can any one have any document or reference to do this with >>> keepalived... >>> 2. I have one more node as spare...so if any host goes down and can not >>> come up again because of any HW failure...i can add it...but i didn't find >>> any way to add these bricks to volume...?? >>> >>> Thanks, >>> Punit >>> >>> _______________________________________________ >>> Users mailing list >>> Users(a)ovirt.org >>> http://lists.ovirt.org/mailman/listinfo/users >>> >>> >> >

The 'referred' mount point is the 'gluster server IP' and the VM behaviour depends on the Gluster Volume availability as discussed before. Reg#localhost instead of server IP, I havent tried this, but logically it should work. You may test it. Also there is an option called 'backup-vol-file-servers' [1] , which should serve(if I am not wrong in interpreting the mentioned mail thread )the same purpose. --Humble On Wed, Aug 20, 2014 at 9:23 AM, Punit Dambiwal <hypunit(a)gmail.com&gt; wrote: > Hi Humble, > > Thanks for the update...the mount point is the ip address to mount the > gluster volume,so if this server goes down...all the VM's will pause :- > > [image: Inline image 1] > > Some one from community suggest me to use the localhost instead of the ip > address for HA....but i have doubt if i use localhost...then whenever any > node goes down the VM's of the failed node will not migrate to another > node... ?? > > http://lists.ovirt.org/pipermail/users/2014-July/025728.html > > Thanks, > Punit Dambiwal > > > > > On Tue, Aug 19, 2014 at 8:23 PM, Humble Devassy Chirammal < > humble.devassy(a)gmail.com&gt; wrote: > >> Hi, >> >> >> >> >> ....but i want the way from the ovirt portal...if possible ?? >> >> >> >> >> Yes, its possible. >> >> >> >> Also in my case if the mount point HV node goes down...all the VM's will >> pause...and once the node come up..i need to manually poweroff the VM's and >> manually start again... >> >> >> >> I failed to interpret 'mount point' here. If you are talking about >> 'gluster' volume server , the VM behaviour depends on the gluster >> configuration which indirectly depend on the quorum configuration and >> volume configuration. If there is an error from underlying storage ( here >> gluster volume) VM can pause , however latest versions of ovirt support >> auto resume. >> >> >> >> Someone from community suggest me to use the localhost as mount point if >> you are using compute & storage on the same node...but i doubt about the >> failover...that means if any node goes down....how the VM migration on >> another node will happen ?? >> >> >> >> If you are using local data center the VM migration can't happen. You >> have to configure a storage domain which can be accessed from your Ovirt >> Cluster Hosts . >> >> Please have a look at >> http://www.ovirt.org/Gluster_Storage_Domain_Reference which talks about >> the recommended way of configuring it. >> >> --Humble >> >> >> On Tue, Aug 19, 2014 at 7:26 AM, Punit Dambiwal <hypunit(a)gmail.com&gt; >> wrote: >> >>> Hi Humble, >>> >>> Thanks for the updates....but i want the way from the ovirt portal...if >>> possible ?? >>> >>> Also in my case if the mount point HV node goes down...all the VM's >>> will pause...and once the node come up..i need to manually poweroff the >>> VM's and manually start again... >>> >>> Someone from community suggest me to use the localhost as mount point >>> if you are using compute & storage on the same node...but i doubt about the >>> failover...that means if any node goes down....how the VM migration on >>> another node will happen ?? >>> >>> Thanks, >>> Punit >>> >>> >>> On Mon, Aug 18, 2014 at 9:37 PM, Humble Devassy Chirammal < >>> humble.devassy(a)gmail.com&gt; wrote: >>> >>>> Hi Punit, >>>> >>>> >>>> If you are using gluster volume for virt store, it is always recommend >>>> to enable /considering virt store use case mentioned here : >>>> http://gluster.org/documentation/use_cases/Virt-store-usecase/ >>>> >>>> Regarding how to add bricks to the volume , you can refer # >>>> https://access.redhat.com/documentation/en-US/Red_Hat_Storage/2.1/html/Ad... >>>> >>>> The virt store use case enables quorum which ideally resolves the >>>> possibilities of split brain. >>>> >>>> Please feel free to revert if you come across any issues. >>>> >>>> --Humble >>>> >>>> >>>> On Fri, Aug 15, 2014 at 12:05 PM, Punit Dambiwal <hypunit(a)gmail.com&gt; >>>> wrote: >>>> >>>>> Hi, >>>>> >>>>> I have 4 node GlusterFS Distributed Replicate volume...the same 4 >>>>> host node i am using for compute purpose....now i want to make it HA....so >>>>> if any host goes down .....VM will not pause and it will migrate to another >>>>> available node... >>>>> >>>>> 1. Can any one have any document or reference to do this with >>>>> keepalived... >>>>> 2. I have one more node as spare...so if any host goes down and can >>>>> not come up again because of any HW failure...i can add it...but i didn't >>>>> find any way to add these bricks to volume...?? >>>>> >>>>> Thanks, >>>>> Punit >>>>> >>>>> _______________________________________________ >>>>> Users mailing list >>>>> Users(a)ovirt.org >>>>> http://lists.ovirt.org/mailman/listinfo/users >>>>> >>>>> >>>> >>> >> >