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You may use gluster as cinder backend.
First . Risky approach http://www.admin-magazine.com/HPC/Articles/GlusterFS

A Striped Volume takes this one step further than the Distributed Volume: In the background, GlusterFS splits up each file delivered to it and distributes the pieces randomly over the individual bricks. This allows for very fast read and write speeds, but again, if even one server fails, all of the data is lost. Therefore, volumes of this kind are only suitable for large, temporary files. To create them a Striped Volume, enter:

 #   gluster volume create examplevolume stripe 3 transport tcp 192.168.2.101:/data \
     192.168.2.102:/data 192.168.2.103:/data

Second. Creating Striped Replicated Volumes
https://access.redhat.com/documentation/en-US/Red_Hat_Storage/2.1/html/Administration_Guide/sect-User_Guide-Setting_Volumes-Striped_Replicated.html