Hi friends.
I'm evaluating different DFS to increase our infrastructure from 10
nodes to 40 nodes approximately. One of the bottleneck is the shared
storage installed to enable the live-migration.
Well, the selected candidate are NFS, Ceph or Lustre (which is already
installed for HPC purpose).
Creating a brief planning and avoiding network connectivities:
*a)* with NFS and Ceph, I think it is possible but dividing the whole
infrastructure (40 nodes) in smaller clusters, for instance; 10 nodes
with 1 storage each one. Obviously, the live-migration is only possible
between nodes on the same cluster (or zone)
*b) *with Lustre, my idea is to connect all the nodes (40 nodes) to the
same lustre (MDS) and use all the concurrency advantages of the
storage. In this case, the live migration could be possible among all
the nodes.
I would like to ask you for any idea, comment or experience. I think the
most untested case is b), but has anyone tried to use Lustre in a
similar scenario? Any comment in any case a) o b) are appreciated.
Thanks
Miguel.
--
/Miguel Angel Díaz Corchero/
/*System Administrator / Researcher*/
/c/ Sola nº 1; 10200 TRUJILLO, SPAIN/
/Tel: +34 927 65 93 17 Fax: +34 927 32 32 37/
CETA-Ciemat logo <http://www.ceta-ciemat.es/>
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