Hello Alfredo, I think best opensource solution is ceph.

As far as commercial solutions are concerned we are working with network appliance (netapp) and emc unity.

Regards

Ignazio

Il Gio 13 Feb 2020, 13:48 Alfredo De Luca <alfredo.deluca@gmail.com> ha scritto:

Hi all.
we 'd like to explore storage back end alternatives to CEPH for Openstack

I am aware of GlusterFS but what would you recommend for distributed storage like Ceph and specifically for block device provisioning?
Of course must be:
Reliable
Fast
Capable of good performance over WAN given a good network back end
Both open source and commercial technologies and ideas are welcome.

Cheers

--
Alfredo