Why are SAP instances managed by HA Add-On (cluster) started with insufficient resource limits?

Solution Verified - Updated -

Issue

  • Why do SAP instances managed by RHEL HA experience "too many open files" errors?
  • Why are resource limits configured in /etc/security/limits.conf not applied to SAP instances managed by RHEL HA?

Environment

  • Red Hat Enterprise Linux 5 or 6.
  • High Availability Add-On.
  • SAP.

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