Open Stack

On Wed, Mar 13, 2013 at 4:42 PM, Joe Topjian <joe.topjian at cybera.ca> wrote:
> It would, yes, but I think your caveat trumps that idea. Having x nodes be
> able to work with a shared _base directory is great for saving space and
> centrally using images. As an example, one of my OpenStack's _base directory
> is 650gb in size. It's currently shared via NFS. If it was not shared or
> used a _base_$host scheme, that would be 650gb per compute node. 10 nodes
> and you're already at 6.5TB.

Is that _base directory so large because its never been cleaned up
though? What sort of maintenance are you performing on it?

(As a side note here, I'd be interested in knowing what your largest
images are in glance. I know that windows images can be quite large,
but 650gb is still pretty huge).

Note that the _base directory could be on local disk. I agree its
still repeated storage, but it doesn't have to be an expensive filer
or something like that.

Michael