What is the largest supported memory and CPU configuration for the IBM Power 9 System (E980) in RHEL 8

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Issue

  • What is the largest supported memory and CPU configuration for the IBM Power 9 (E980) System under RHEL 8.2 and above?

Environment

  • IBM Power 9 System (E980)
  • Red Hat Enterprise Linux 8.2 and above

Resolution

  • The IBM Power 9 System (E980) has been tested with 64TB of RAM and 1536 CPUs to ensure that operating beyond the published limits will not cause any issues.
  • In order to achieve certification with configurations that exceed the supported memory amounts for RHEL 8 qualifying systems are subjected to Extended Engineering Testing beyond the normal hardware certification tests.
  • You must be running RHEL 8.2 or above to take advantage of these increased limits.
  • Please see the RHEL Limits page for more information

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