2013616 - Patching multiple BI 4.x servers in parallel in a distributed deployment simultaneously? [How-To / Parallel Patching]

This article explains the proper methodology to patch or update BI 4.x server or client software in a clustered or distributed configuration of SAP BI Platform deployment simultaneously or in parallel.

• When installing an update on a distributed BI platform deployment, where servers and components are installed across multiple host-machines, you
  are required to apply the patches to hosts in a specific order for the system to update properly.
• Until BI 4.0 SP04, updating servers in a distributed deployment was done by patching the servers one after the other ( sequentially ), which was time consuming ( see SAP kbase 1807514 ).
• From BI 4.0 SP05 and above (including BI 4.1, 4.2 & above),  the deployment order has changed for distributed systems.  It is now possible to patch servers simultaneously in parallel.
• However, this needs to be done in a specific order and some considerations which need to be taken to patch the servers in a distributed environment successfully.

• SAP BusinessObjects Business Intelligence Platform 4.x (BI 4.0 / 4.1 / 4.2 / 4.3)
• Windows
• Linux / Unix 

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