[ClusterLabs] VirtualDomain as resources and OCFS2

[Gang He]

Hello Lentes,

>>> On 2018/9/11 at 20:50, in message
<584818902.7776848.1536670226935.JavaMail.zimbra at helmholtz-muenchen.de>,
"Lentes, Bernd" <bernd.lentes at helmholtz-muenchen.de> wrote:

> 
> ----- On Sep 11, 2018, at 4:29 AM, Gang He ghe at suse.com wrote:
> 
>> Hello Lentes,
>> 
>> It does not look like a OCFS2 or pacemaker problem, more like virtualization
>> problem.
>> From OCFS2/LVM2 perspective, if you use one LV for one VirtualDomain, that 
> means
>> the guest VMs on that VirtualDomain can not occupy the other LVs' storage
>> space.
> 
> Hi Gang,
> 
> i see that.
> 
>> If you use OCFS2 on one LV for all VirtualDomains, the guest VMs can share 
> the
>> storage space, but you can look at OCFS2 ACL mechanism, maybe this can help 
> to
>> limit each directory to use storage space.
> 
> The storage space isn't the problem. I have enough disks in my SAN, and most 
> of the guests will not grow
> or just grow very slowly.
> 
> Do you see s.th. else which contradicts to the use of one OCFS2 Volume for 
> all virtual guests ?
No, 
just suggest you to create a separated directory for each VirtualDomain, try to decouple the image file locations.

Thanks
Gang

> 
> Bernd
> 
>  
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