cloud disk benchmarks

[Seth Vidal]

On Sun, 7 Oct 2012, David Nalley wrote:

>
> Gluster currently doesn't proclaim running VM images as one of its
> strong points, although many do use it in that capacity. A few months
> back a well funded group attempted to use Gluster as storage for their
> CloudStack instance and were unable to tune performance to acceptable
> levels. In the end they abandoned their gluster efforts and moved to
> ceph for their distributed storage. That said, I wouldn't expect any
> distributed storage solution to get close to DAS speed. If you are
> willing to live with the downsides of DAS, it is almost always going
> to be faster.

And the point of the comparison was not to say "DAS is sooo much better".

The point of the comparison was to see if we can improve the gluster 
performance some or if we should tailor our use of each specifically based 
on workload/type of use. The other point was to simply be aware of the 
difference.


We use gluster in other places (fedorahosted) and quite like it. Doesn't 
mean it is perfect for every case but the only way we're going to be sure 
is to benchmark. That's all I was trying to provide.

-sv