As information/background, I have been away from SAP and basis for about four years.
Due to personnel changes here, I am now returning to it. While I was away,
our SAP system was upgraded from version 4.0B to SAP R/3 ENTERPRISE 47X110.
I was not a part of the upgrade and have no details as to how it was accomplished.
At this point, we have two SAP systems: DEV and PRD and they are on separate
partitions of an i5 520.
Both are running on OS/i5 V5R3M5 with mostly updated CUMe packages, etc, and
PASE is installed.
Both of these systems use the 6.20 kernel at patch level 1598.
We know that this is an OLD kernel and we need to upgrade.
Upgrading the kernel used to be a really simple thing to do but now, it seems
so complicated! The sheer volume of data on the SMP is very dauntingwhen
it can be found. As a result, I have many questions:
1. Should we upgrade to kernel 6.40 or kernel 7.00?
2. The most recent support package that we have is SAPKB62028.
What is the purpose of support packages? Do they have anything to do with the
kernel version? The reason I ask is that in some places, it is stated that
MUSTbe current with support packages before you attempt to
upgrade your kernel to 6.40. In other places, it isnt even mentioned.
Note 664679 states:
Before you can use the 6.40 kernel, the following Support Package must be installed in your SAP system: SAP_BASIS 620: SAPKB62041 To avoid the problems described in note 787328, the following Support Packages are also recommended: SAP_BASIS 620: SAPKB62047
So, obviously, I need to get these support packages up to level 47. Why?
Isnt the new kernel a fresh start? Why would the existing kernel and
its support package level make any difference to the new kernel?
Since we are currently using kernel 6.20, do I need to install support
5. I know that we dont have a J2EE server. Do I need to even worry
about that at all?
6. Is there any basis functionality that exists in the J2EE server
that doesnt exist anywhere else? In other words, are we doing ourselves
(and, particularly, me) a disservice by not having it?
7. What is the difference between SAP NetWeaver 04 and SAP NetWeaver 2004s?
8. As long as I have a backup, would it be safe to create a new kernel
for DEV but leave PRD alone? Will the transport functions still operate if I do?
9. Someone mentioned an R3OPT Support Package Stack. Would this be
preferable to loading from the installation CD and patching?
Is this in addition to the new kernel installation?
Any information is greatly appreciated because, as you can see,
I have a lot to learn in a very short time.
Message was edited by: Robert Clay
Reformmatted, adding line breaks