[one-users] LVM over iSCSI or NFS for OpenNebula

[ngurjar at neeleshgurjar.co.in]

On 2015-02-17 02:58, Jaime Melis wrote:
> Hi,
>  
> 
>> - I can create VMs successfully but very very slow performance.
> 
> Are you using virtio drivers? I also recommend playing with the
> 'cache' parameter. How well does it perform compared with I/O
> operations in the hypervisor? Is the storage the problem here or the
> Virtualization layer?

I am using KVM hypervisor. I also used Chachefilesd but while launching 
vms it takes long time. Also poor writing speed inside the vm.


> 
>> - Also when I created VM on node1 and try to migrate it other vm it
>> does not work as logical volume of that VM on node2 is inactive.
> 
> have you set up cLVMd? I think for your setup the best approach is:
> http://docs.opennebula.org/4.10/administration/storage/fs_lvm_ds.html
> [2]
> 
> Or something like GFS2.

No I did not configure CLVMd or GFS as it needs fencing device.


Regards
Neelesh Gurjar

> 
> cheers,
> Jaime 
> 
> On Tue, Feb 10, 2015 at 12:08 PM, <ngurjar at neeleshgurjar.co.in> wrote:
> 
>> Hi,
>> I am setting up OpenNebula on 2 nodes and 1 storage on 1Gb Network.
>> - installed Nexenta Community Version on Storage and created iSCSI
>> LUN.
>> - Access those LUNs on both nodes and created Volume Group on it.
>> - Configured LVM Block Datastore in OpenNebula.
>> - I can create VMs successfully but very very slow performance.
>> - Also when I created VM on node1 and try to migrate it other vm it
>> does not work as logical volume of that VM on node2 is inactive.
>> 
>> What do you recommend for this type of setup for Shared Storage
>> LVM, NFS? Please note that I need to use 1GbE copper due to budget
>> limitations.
>> 
>> Regards
>> Neelesh Gurjar
>> _______________________________________________
>> Users mailing list
>> Users at lists.opennebula.org
>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org [1]
> 
> --
> 
> OpenNebula - Flexible Enterprise Cloud Made Simple
> 
> --
> Jaime Melis
> Senior Infrastructure Architect at OpenNebula Systems (formerly C12G
> Labs)
> jmelis at opennebula.systems | @OpenNebula
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> Links:
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> [1] http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
> [2] 
> http://docs.opennebula.org/4.10/administration/storage/fs_lvm_ds.html