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Former Member

replace kernel 7.01 with 7.21 or 7.20

Hello,

Currently, I have ERP 6.0 EhP4 with Kernel 7.01 level194.

Question: should I replace it with kernel 7.20 or 7.21? I have MsSql and Win 64bit Unicode.

Thank you

Chris

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6 Answers

  • Best Answer
    Jul 10, 2013 at 01:31 PM

    Hi Chris

    We have upgraded the Latest kernel few month back for that I have created the step, Since your system is also on windows I am sharing the steps

    _____________________________________________________________________

    New Kernel Upgrade Steps in SAP system
    Note: To implement the latest kernel 7.20 Minimum required NW 7.00 SPS level 14 refer the SAP note 1636252
    1.Implement the Sap Note 1222907 - Runtime object with incorrect alignment or apply the SAP_BASIS level 17

    2.Implement the Sap Note 1610716 Correcting runtime objects with incorrect alignment or Apply the SPS Basis Level 27 Before implementing the SAP note Kindly follow below steps
    2.1 Check the nametab (profile parameter rsdb/ntab/entrycount to 200000),as mention in the SAP note 13988023
    2.2 Execute the report RUT_NOTE_1610716 as mentioned in the SAP note 1610716
    2.3 Implement the SAP note 1610716
    2.4 Install the Microsoft Redistributable runtime DLLs VS2010 SP1 as mention in the SAP note 1553465 (executable file avaible in the Sap Kernel file SAPEXE.SAR )

    3.Before taking backup stop the SAP service, and then take the backup of exiting kernel folder (D:\usr\sap\(SID)\SYS\exe\uc\NTAMD64,
    4.Copy the new kernel 7.20(Database depend & in depend) and then restart the Server check the services and application & System event viewers ( Follow the Sap Note 1636252 under the sub topic No 4.2)
    5.Install the Latest version of SAP HostAgent version 7.20 (not on 7.20 Ext)
    6.Delete the existing syslog and the set the profile parameters ‘rslg/new_layout = 9’ as mention in the Sap note 1636252
    7.Only necessary in case of a Dual-Stack system: you must set the following parameter in the default system profile DEFAULT.PFL: system/type = DS

    ______________________________________________________________________________________________________________

    Thanks & Regards

    Sriram

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  • Jul 10, 2013 at 10:27 AM
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    Former Member
    Jul 10, 2013 at 10:32 AM

    Hi,

    Yes you can.

    thanks

    Rishi Abrol

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    Former Member
    Jul 10, 2013 at 10:33 AM

    Hello Chris,

    Absolutely you can.

    Please find beautiful doc on kernel change from 700 to 720REL/720_EXT

    http://scn.sap.com/community/netweaver-administrator/blog/2013/05/22/upgrading-sap-kernel-from-release-700-to-sap-kernel-720rel-720ext

    Regards,

    Surojit

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  • Jul 10, 2013 at 11:49 AM

    Yes you should, newer kernel version offer security fixes\speed enhancements\stability\etc etc; as an example for you a recently built 7.4 Java App server for myself using the 7.40 kernel restarts in under 2 mins (30 - 35 secs shutdown, 50 - 70 secs startup). Now granted I don't have it doing much yet as its going to replace some older adobe servers in my environment.

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    Former Member
    Jul 10, 2013 at 01:34 PM

    Thank you for your answer. But, 720 or 721?

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