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vCloud Automation Center – DEMs Demystified

There are two types of DEMs that are used within vCAC.  Those are:

  • Orchestrator DEM
  • Worker DEM

DEMs in General

You have to have at least one Orchestrator DEM and Worker DEM, but  depending on the size of your environment you may have more than one of  each.  You may have more than one of each for redundancy purposes as  well.  DEMs can be installed in active-active pairs providing full  resiliency for each other.  DEM’s communicate with the vCAC Model  Manager to receive work items that need processing.  The really nice  part is they pull from the Model Manager, the Model manager doesn’t push  items to them.  This is very helpful if you need ti utilize a DEM in a  fire-walled environment.

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Sid Smith ----- VCP, VTSP, CCNA, CCA(Xen Server), MCTS Hyper-V & SCVMM08 [http://www.dailyhypervisor.com] - Don't forget to award points for correct and helpful answers. 😉
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