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Huawei SAP HANA Appliance Single Node Installation Guide (RH5885H and RH8100 V3+Broadwell+SLES) 12
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Configuring System Parameters (for SLES 12 SP1)

Configuring System Parameters (for SLES 12 SP1)

2205917 - SAP HANA DB: Recommended OS settings for SLES 12 / SLES for SAP Applications 12

  1. Use PuTTY to log in to the OS as user root, and run the following commands:

    hw00001:~ # echo never >/sys/kernel/mm/transparent_hugepage/enabled
    hw00001:~ # cat /sys/kernel/mm/transparent_hugepage/enabled
    
    hw00001:~ # echo 0 >/sys/kernel/mm/ksm/run
    hw00001:~ # cat /sys/kernel/mm/ksm/run
    
    hw00001:~ # echo 0 >/proc/sys/kernel/numa_balancing
    hw00001:~ # cat /proc/sys/kernel/numa_balancing
    
    hw00001:~ # echo 0 > /proc/sys/vm/pagecache_limit_mb
    hw00001:~ # cat /proc/sys/vm/pagecache_limit_mb

  2. Run the vi /etc/rc.d/after.local command.

  3. Enter i, go to the last line, and enter the following information:

    echo never >/sys/kernel/mm/transparent_hugepage/enabled
    echo 0 >/sys/kernel/mm/ksm/run
    echo 0 >/proc/sys/kernel/numa_balancing
    echo 0 > /proc/sys/vm/pagecache_limit_mb

  4. Press Esc, enter :wq, and press Enter to save the information.
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Updated: 2020-03-20

Document ID: EDOC1100017252

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