Solution : https://service.sap.com/sap/support/notes/1713986 (SAP Service marketplace login required)
Summary :
The SAP Note outlines the deployment process for kernel 7.21 (EXT), compatible with SAP NetWeaver versions up to 7.31. It emphasizes the replacement of older kernel versions with 721 (EXT) to leverage new features without the need for a full SAP upgrade. The document stipulates that the kernel swap should occur on all servers within the system and clarifies that front-end PCs don't require a new GUI version. Additionally, users must still adhere to regular update policies by installing available Support Packages post-upgrade, and future kernel fixes should use exclusively 721 (EXT) patches. Important downloads and necessary components like SAPCAR and SAPEXE.SAR are detailed for correct installation setups.
Key words :
customer component bc-cst client/server technology priority recommendations / additional info category upgrade information validity software componentfrom rel, rdisp/wp_no_dia + rdisp/wp_no_vb2 + rdisp/wp_no_btc + rdisp/wp_no_vb + rdisp/wp_no_spo + rdisp/wp_no_enq, cd /usr/sap/<sapsid>/<instance>/worksapcpe pf=/usr/sap/<sapsid>/sys/profile/<instance profile> list, cd /usr/sap/<sapsid>/<instance>/worksapcpe pf=/usr/sap/<sapsid>/sys/profile/<instance profile>, su - rootchown <sapsid> adm /usr/sap/<sapsid>/sys/exe/run/ exit important, cd /usr/sap/<sapsid>/sys/exe/run<newkernel>/sapcar -xvf <newkernel>/<additional package>, rdisp/wp_no_restricted = 0rdisp/configurable_wp_no = 0rdisp/dynamic_wp_check = falserdisp/wp_max_no = sum, sapcpe pf=/usr/sap/<sapsid>/sys/profile/<instance profile> source, cd \usr\sap\<sapsid>\<instance>\worksapcpe pf=<drive>, \usr\sap\<sapsid>\sys\profile\<instance profile> source
Related Notes :
| 1825259 | UNIX sapstartsrv: the system does not start with 720 kernel |
| 1753638 | z/OS: Enqueue Replication into System z Coupling Facility |
| 1728283 | SAP Kernel 721: General Information |
| 1726899 | 721 DCK: Upgrade from 7.0n to 7.1n |
| 1716826 | Usage of the downward compatible kernel 721 (EXT) |
| 1694697 | SAP Business Application Accelerator powered by HANA |
| 1636252 | Installing a 7.20 kernel in SAP Web AS 7.00/7.01/7.10/7.11 |
| 1633731 | Usage of the 7.20 Downward-Compatible Kernel |
| 1629598 | SAP Kernel 720 will replace older kernel versions |
| 1553301 | 7.20 EXT Kernel - Usage |
| 1097751 | iSeries: Info & recommendations for kernel libraries |
| 1972803 | SAP on AIX: Recommendations |