User Guide

IBM

Power

Power10 Quick-start Guide - Enterprise Linux for Power

The enterprise Linux operating system (OS) is a solid foundation for your hybrid cloud infrastructure and for scale-up enterprise software

solutions. Recent releases are optimized for best-in-class Power10 Enterprise systems

Best practices :

ü RHEL provide predefined

tunings as part of tuned service.

ü Refer to the latest SAP notes for recommended OS settings for SAP

applications. Typically tuned is used in RHEL and saptune or sapconf in SLES

ü Frequency is managed by the PowerVM. Reference:

Energy Management

ü Starting Power8 Huge Dynamic DMA Window helps improve I/O performance.

ü Starting Power9

24x7-Monitoring is integrated with perf tool. Allows

monitoring entire system.

ü Ensure the system firmware level is current.

ü lparnumascore from powerpc-utils shows the LPAR’s current affinity score.

DPO can be used to improve the LPAR affinity score.

Supported distros:

ü Starting with Power9 only RedHat and SUSE are supported in PowerVM

partitions

ü Detailed info on

distro support matrix covering older generation HW

LPM Support:

ü Move Linux logical partitions from older generation Power systems with near

zero application downtime

ü Reference:

LPM Guide and related information

Power Specific Packages:

Powerpc-utils package: Contains utilities for maintenance of IBM powerpc

LPARs. Available as part of the distro.

ü Advance Toolchain for Linux on Power : Contains latest compilers, runtime

libraries.

ü SLES15SP3, RHEL8.4 support Power10 native mode

ü Compat-mode support to allow client to migrate from older generation

Power systems ( P9 and P8 )

ü Default Radix translation support in Power10 mode

ü Significant improvement in encryption performance

Power10

Linux + PowerVM

ü Support for PowerVM enterprise features : LPM, Shared CPU Pools, DLPAR

ü Innovative solutions : SAP HANA future application growth with 4PB virtual

address space

ü Reduce time to reload the data : Virtual PMEM support for SAP HANA

ü World-class Support & Service