Solution : https://service.sap.com/sap/support/notes/2292690 (SAP Service marketplace login required)
Summary :
This SAP Note provides guidance for configuring optimal settings for SAP HANA on RHEL for SAP HANA 7.2, detailing necessary kernel versions, tuned profiles, and other system settings to enhance performance and stability. It includes instructions on using certified kernel patches, disabling unwanted system features like transparent hugepages and auto-numa balancing, and adjusting kernel parameters for optimized operation. The note emphasizes the necessity of using the "sap-hana" tuned profile, subscribing to Extended Update Support for RHEL 7.2, and potential adjustments in BIOS and SELinux settings for maintaining system stability and performance.
Key words :
# yum install tuned tuned-utils tuned-profiles-sap-hana# tuned-adm profile sap-hana# systemctl start tuned# systemctl enable tuned turn, components bc-op-lnx-rh red hat linux priority recommendations / additional info category consulting validity, additional 3rd-party kernel modulesif additional 3rd-party binary kernel modules, 3rd-party linux kernel drivers configure tuned, # cat /sys/devices/system/cpu/cpuidle/current_driverthe correct, setenv ld_preload /opt/rh/sap/lib64/compat-sap-, object '/opt/rh/sap/lib64/compat-sap-, ld_preload=/opt/rh/sap/lib64/compat-sap-, cpu power save mode 1888072 sap hana db, customer component han-db sap hana database
Related Notes :
| 784391 | SAP support terms and 3rd-party Linux kernel drivers |
| 2235581 | SAP HANA: Supported Operating Systems |
| 2228351 | Linux: SAP HANA Database SPS 11 revision 110 (or higher) on RHEL 6 or SLES 11 |
| 2009879 | SAP HANA Guidelines for Red Hat Enterprise Linux (RHEL) Operating System |
| 2002167 | Red Hat Enterprise Linux 7.x: Installation and Upgrade |
| 1890444 | Slow HANA system due to CPU power save mode |
| 1888072 | SAP HANA DB: Indexserver crash in __strcmp_sse42 |
| 1523337 | SAP In-Memory Database 1.0: Central Note |
| 1514967 | SAP HANA 1.0: Central Note |