Primary storage: does it make sense/is it valid to have it local/unshared?

[Steve Roth <st...@oracle.com>]

Hi all,

I am looking at CloudStack for internal testing.   (ie not a production 
environment -- HA is not required).    We have (2) KVM hypervisors in 
our CS environment.

I'm curious if folks have ever placed primary storage directly on the 
hypervisors (as opposed to a NAS).  I understand this would negate the 
HA features, but I'm curious if there are other impacts.

The main driving reason for us is because our NAS is on a different 
subnet than our hypervisors, so having primary storage on the NAS I 
think would slow things significantly.

Is this a valid configuration?    All the docs seem to recommend primary 
storage should be on a NAS.

If it is valid, is it possible to make it 'unshared' / hypervisor-specific?

I'm curious if anyone has done this before.

Thanks
-Steve

Re: Primary storage: does it make sense/is it valid to have it local/unshared?

[Travis Graham <t...@tgraham.us>]

Hey Steve,

That's how it would work. If you create the local storage on the compute servers then that's the only server that has access to use it as Primary storage.

Nothing wrong with that setup, especially for testing. That's how we started our initial tests before setting up different hypervisor clusters and shared storage.

Travis

On Aug 23, 2013, at 11:43 AM, Steve Roth <st...@oracle.com> wrote:

> Hi all,
> 
> I am looking at CloudStack for internal testing.   (ie not a production environment -- HA is not required).    We have (2) KVM hypervisors in our CS environment.
> 
> I'm curious if folks have ever placed primary storage directly on the hypervisors (as opposed to a NAS).  I understand this would negate the HA features, but I'm curious if there are other impacts.
> 
> The main driving reason for us is because our NAS is on a different subnet than our hypervisors, so having primary storage on the NAS I think would slow things significantly.
> 
> Is this a valid configuration?    All the docs seem to recommend primary storage should be on a NAS.
> 
> If it is valid, is it possible to make it 'unshared' / hypervisor-specific?
> 
> I'm curious if anyone has done this before.
> 
> Thanks
> -Steve