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Re: [Linux-cluster] Clustering storage using RHCS to store VMs



Hi,

On Mon, 2010-03-15 at 14:26 +0100, carlopmart wrote:
> Steven Whitehouse wrote:
> > Hi,
> > 
> > On Mon, 2010-03-15 at 12:57 +0100, carlopmart wrote:
> >> Steven Whitehouse wrote:
> >>> Hi,
> >>>
> >>> On Mon, 2010-03-15 at 11:50 +0100, carlopmart wrote:
> >>>> Hi all,
> >>>>
> >>>>   I need to setup a rhcs with two nodes to use it for delivery storage for vmware 
> >>>> esxi 4 and rhel5.4 kvm hosts.
> >>>>
> >>>>   Which type of filesystem is best to use on this topology to serve it via NFS for 
> >>>> esxi and rhel5.4 kvm hosts: gfs2 or ext4??
> >>>>
> >>> That depends on whether you need multiple nodes exporting the same
> >>> filesystem or not.
> >> I need to export only for 1 esxi host and 1 rhel5.4 kvm host (at this first stage. 
> >> It is expected to grow until 4 esxi hosts and 2 rhel5.4 kvm hosts). And I need to 
> >> export same filesystems to both and all future hosts ...
> >>
> >>
> >>
> >>
> > I'm not sure I understand. How many physical hosts have you got, and how
> > many virtual hosts and how are the virtual hosts arranged on the
> > physical hosts?
> 
> Sorry, I will try to explain:
> 
>   - Physical hypervisor hosts: 2, one esxi and one rhel5.4 kvm. On a second planned 
> phase (next months) will be six physical hosts: 4 esxi and 2 rhel5.4.
> 
>   - Virtual machines: 20 (windows, solaris and linux). Over next months will be more.
> 
>   - KVM guests: 6 virtual machines. all redhat based acting as a mysql servers, 
> apache services and smtp services.
> 
>   - VMware guests: 14 virtual guests, most of them Windows 2008 R2 guests serving 
> web pages, acting as a file servers, etc. A few Windows 7 guests for VDI.
> 
Assuming that you intend to share one fs across multiple physical hosts
for storing VM images, then that rules out ext4,

Steve.



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