The SAS
Grid Server serves as a bridge between SAS applications and the grid
environment. It enables an application to recognize the grid and submit
jobs to it.
The
grid server is actually a logical server, which is a component under
a SAS Application Server. A grid consists of the following nodes:
-
a grid control server
a machine that distributes jobs to machines on the grid. A grid control
server can also do work allocated to the grid.
-
one or more grid nodes
a machine or machines that run a portion of the work allocated to
the grid.
A logical grid server is required on both types
of nodes.
The grid control server
and the grid node include the following components:
-
-
workspace server and spawner (grid
control server only)
-
-
-
SAS/CONNECT server and spawner
The logical grid server definition specifies the
command that is used by the middleware provider to start a
SAS/CONNECT
session.
To configure grid nodes,
you first design the grid and designate a machine to be the grid control
server. Next, you set up the logical grid server definitions on all
of the grid nodes.
After a grid is configured,
you can add grid nodes to increase grid capacity, create the required
logical server definitions on a machine, and install the required
software on each machine. Specific information about setting up and
configuring a grid is on the SAS Scalability and Performance focus
area:
http://support.sas.com/rnd/scalability/grid/griddocs.html. If you are setting up a grid using middleware other
than Platform Suite for SAS (such as United Devices GridMP or DataSynapse
GridServer), specific values for the fields in a grid server definition
are also on the SAS Scalability and Performance focus area.