How exactly are Distributed File Systems used in cloud environment?

Posted by vaab on Server Fault See other posts from Server Fault or by vaab
Published on 2012-11-17T14:11:18Z Indexed on 2012/11/17 17:04 UTC
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glusterfs

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OpenStack

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lustre

How exactly are Distributed File Systems used in cloud environment ?

More precisely:

Are live VMs images (or their filesystem) usually located in the DFS ?
Are VMs usually used to run the backbone (actual code) of DFS structure ?

Precise example citing DFS (ceph, Gluster, GFS, GPFS, Lustre) or cloud environment (Openstack , CloudStack, ...) would be appreciated, even if I'm more interessted by ceph on OpenStack for now.

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