SAP Kernel upgrade from 700 to other

[Former Member]

Dear friends,

                  My SAP version is ECC 6.0 EHP3 , data base mssql 2005 and os windows 2008r2 server.

My SAP kernel version is 700.we are planing to upgrade my kernel version from 700 to other latest version.Regarding this i want to know below points , please let me confirm.

1) In which condition we will go for kernel upgrade.

2)If we need to upgrade kernel means , to which version we need to upgrade.

3) what is the latest kernel version available from SAP,If i need to upgrade the kernel version means directly can i upgrade to latest version.

4)What are the  perquisites for upgrading Kernel.

Please let me confirm my queries.

Thanks to every one, i am getting more support from SDN.    

[former_member182657]

Hi Rao,

1) In which condition we will go for kernel upgrade.

To replace old executable's with new ones by upgrade kernel which is available at service market place.

2)If we need to upgrade kernel means , to which version we need to upgrade.

You can upgrade from 700 to the latest available (720,720_EXT,721,721_EXT,740 & 741 ).

3) what is the latest kernel version available from SAP,If i need to upgrade the kernel version means directly can i upgrade to latest version.

Latest version available is 741.

4)What are the  perquisites for upgrading Kernel.

Most important is to take old running kernel files backup to follow successful upgrade of kernel.

Hope this will help you.

Regards,

Gaurav

[Former Member]

Hi Gaurav ,

             Thanks for your immediate response , thanks for your information .

I want to know another 2 points , please let me confirm.

1)If i need to Upgrade Kernel means i need to upgrade entire landscape like DEV>QTY>PRD.

2)My Production server is cluster base , for that any process is there or need to follow same as like DEV and QTY .

3) Is there any other prerequisites for Kernel upgrade .

Thanks you. 

[former_member182657]

Hi Rao,

1)If i need to Upgrade Kernel means i need to upgrade entire landscape like DEV>QTY>PRD.

  2)My Production server is cluster base , for that any process is there or need to follow same as like DEV and QTY

.

As per SAP standards,if we are performing kernel upgrade try to upgrade under complete landscape to avoid any issues.So i also suggest you to upgrade kernel on DEV,QTY & PRD. Also if you don't want to upgrade kernel on QTY & PRD then first test on DEV environment & after successful procedure go for QTY and then finally for PRD.

3) Is there any other prerequisites for Kernel upgrade .

you can follow

Regards,

Gaurav

[Former Member]

Thanks Gaurav, once i will do this activity , i will get back to you.

[Reagan]

There is no condition as to when a kernel upgrade should be done. If the present kernel is stable then use that. If you are hitting a bug addressed in one of kernel patch levels then update the kernel to the one which fixes it.

Kernel 720 replaced the SAP kernel versions 700, 701, 710 and 711

Read these SAP notes

1629598 - SAP Kernel 720 will replace older kernel versions

1636252 - Installing a 7.20 kernel in SAP Web AS 7.00/7.01/7.10/7.11

There are requirements for installing the higher version of kernels. Certain version of kernels require higher version of OS and DB.

You need to update the kernel on all the system but not in a day. The whole landscape should be set with the same kernel patch. DEV on day 1 QUA on day 3 and PRD on day 6

The procedure to update the kernel is same for SAP on cluster. You probably will have to take the cluster resources offline.

Regards

RB

[Former Member]

Hi ,

      We are planing for Kernel upgrade from 700 to 720 directly .

If we face any issue with Latest kernel , how we will get back by system to old version.

[former_member182657]

Hi Rao,

First take a backup of old kernel files under /sapmnt/<SID>/exe to some other location & perform the kernel upgrade,if any issues just replace old kernel files to the /sapmnt/<SID>/exe & run ./saproot.sh SID.

Regards,

Gaurav

[former_member182657]

As your OS is windows follow link

Thanks,

Gaurav

[Reagan]

If we face any issue with Latest kernel , how we will get back by system to old version.

You will go back to the old kernel like the way you put the new kernel.

Regards

RB

[Former Member]

Thank you..

[Former Member]

Hi Gaurav,

              How to download latest kernel from Market place,now market place format is changed ...old version i found easily...but in this new version i am confusing , please let me know the path, other wise any screen shot .

Thanks your support ....

[Reagan]

http://service.sap.com/swdc

Support Packages and Patches - Browse our Download Catalog - Additional Components - SAP Kernel

Regards

RB

[former_member189797]

http://support.sap.com/

software download => Support Packages and Patches => Browse our Download Catalog => Additional Components => SAP Kernel