[one-users] Shared File System mixed with non-shared

Tino Vazquez tinova at opennebula.org
Wed Jan 18 07:43:27 PST 2012


Hi Oriol,

The scenario you define is entirely possible, and the approach with
the templates of the public cloud interfaces is very sound.

About mixing both storage methods in the same host, this is not
advisable since the scheduler will be confused and will possibly
overbook resources.

Regards,

-Tino

--
Constantino Vázquez Blanco, MSc
Project Engineer
OpenNebula - The Open Source Toolkit for Data Center Virtualization
www.OpenNebula.org | @tinova79 | @OpenNebula



2012/1/17 Oriol Martí <omarti at cesca.cat>:
> Hello, I want to mix the shared File System without the non shared.
> What is the best way to do this?
>
> I think that the best is:
> 1- Create some hosts with the shared driver:
> onehost create cluster01 im_kvm vmm_kvm tm_shared
>
> This hosts have the /var/lib/one shared by NFS or another shared FS
> protocol.
>
> 2- Create some other hosts with non-shared driver
> onehost create cluster02 im_kvm vmm_kvm tm_ssh
>
> In this hosts the directory /var/lib/one is mounted from local disk FS.
>
> When I create a compute, if I want to create with shared FS I add the next
> line:
> REQUIREMENTS = "TM_MAD=\"tm_shared\""
>
> If I want to create from local disk:
> REQUIREMENTS = "TM_MAD=\"tm_ssh\""
>
> When I create a compute, I want this compute is in shared disk by default,
> to do this I add the shared line requirements (REQUIREMENTS =
> "TM_MAD=\"tm_shared\"") in the OCCI, EC2 templates (small, medium, large). I
> create new templates (small-local, medium-local, and large-local) with the
> local disk line requirements.
>
> Is this the best approach to mix different file systems?
>
> For me it would be very interesting to have one host with shared and
> non-shared storage, is this possible?
>
> Regards
>
> --
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