How to Patch SAP J2ee Stack

1. Read the release notes of packages and do the home work (very Important)
2. Download the Support Packs from the SAP Market Place
2.a. CTRLSAPDBnn_0-20000nnn.SAR
2.b. J2EERTnn_0-20000nnn.SAR
2.c. J2EERTOSnn_0-20000nnn.SAR
2.d. SAPINSTnn_0-20000nnn.SAR
2.e. SAPCAR (optional, but necessary because what you have might not be the latest)
3. Create a Temporary File System, and
4. Extract SAPINST* and CTRL* SAR Files
5. Extract OS Independent (J2EERTnn_0-20000nnn.SAR) and apply First and then extract the OS Dependent Files and apply. The Order is important.
6. J2ee Engine patching would either be required to be done by sapinst or by SDM or JSPM tools. The details will be mentioned in the release notes.
7. First patch the Central Instance, when you run the sapinst
a. The patching should be done first for the Central Instance
i. The Option “Import Support Package nn”, when you run the sapinst.


b. Only then patch the Dialog instance
1. Choose the option “Support Package nn – Dialog Instance Update”

6 Restart the j2ee engine.
7 Check the status from the URL http://hostname:javaport/ -> “System Information”

HPUX Patch Designations

Ever wonder what those letters in HP-UX patches stand for.

PHCO – General Command and libraries patches
PHKL – Kernel patches.
PHNE – Networking Patches
PHSS – Sub System patches (Anything else)

Any of these patches can force you to do a reboot. Kernel patches almost always involve a reboot

Tips on Patch Installation

Patches shouldn't be directly applied on the production system (PRD). We first need to apply it on the development (DEV) system and test the same.

Whenever there are patches available for installation, Please make sure that:

• Whenever you are applying ABAP and BASIS patches, it is recommended to have one version less than the latest.
• After you apply these patches, plan for your kernel upgrade which will work better in sync with the new BASIS and ABAP patches.
• Also, need to check for any SAPGUI patch available, otherwise dumps might error.
• ABAP+BASIS+Kernel+SAPGUI should be planned together and to be implemented together.

When applying Application Patches, we need to be very careful. This might affect the total functionality and your business process may get affected. Specially when you have modified many SAP objects to suit your business.