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cluster:93 [2011/01/11 15:38]
hmeij 		cluster:93 [2011/01/11 15:41]
hmeij
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 There are no changes to the Dell cluster (petaltail/swallowtail).  However be sure to read the home directory section below.  __It is important that all users understand the impact of changes to come.__ There are no changes to the Dell cluster (petaltail/swallowtail).  However be sure to read the home directory section below.  __It is important that all users understand the impact of changes to come.__
  
-If we like the HP management tools, in the future we may ingest cluster petaltail/swallowtail and sharptail into greentail for a single point of access.  Regardless of that move, the home directories will be served by greentail.  That is a significant change. More details below.+If we like the HP management tools, in the future we may ingest cluster petaltail/swallowtail and sharptail into greentail for a single point of access.  Regardless of that move, the home directories will be served by greentail in the future.  That is a significant change. More details below.
  
 As always, suggestions welcome. As always, suggestions welcome.
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   * We continually run out of disk space for our home directories.  So the new cluster had to have a large disk array on board.   * We continually run out of disk space for our home directories.  So the new cluster had to have a large disk array on board.
-  * We wanted more nodes, in fewer queues, with a decent memory footprint.+  * We wanted more nodes,  with a decent memory footprint (settled on 12 gb per node).
   * All nodes should be on an Infiniband switch.   * All nodes should be on an Infiniband switch.
   * A single queue is preferred.   * A single queue is preferred.
-  * Data (NFS) was to be served up via a secondary gigabit ethernet switch, hence not compete with administrative traffic.+  * Data (NFS) traffic was to be served up via a secondary gigabit ethernet switch, hence not compete with administrative traffic.
   * (With the HP solution we will actually route data (NFS) traffic over the infiniband switch using OFED/MPI, a practice called [[http://en.wikipedia.org/wiki/OpenFabrics_Alliance|IPoIB]])   * (With the HP solution we will actually route data (NFS) traffic over the infiniband switch using OFED/MPI, a practice called [[http://en.wikipedia.org/wiki/OpenFabrics_Alliance|IPoIB]])
   * Linux (Redhat or CentOS) as operating system.   * Linux (Redhat or CentOS) as operating system.
cluster/93.txt ยท Last modified: 2011/01/11 20:55 by hmeij

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