We are upgrading R/3 4.6B to 4.6D on WINDOWS NT 4.0 with MS SQL 7.0. When we do a kernel and kernel patch upgrade on a three-tier system, do we do the same for the 2 application servers or should I say dialogue instances that are attached to the live PRD server?
Yes. You also need to upgrade the Kernel on the application servers. Do them after upgrading the central instance. See page 283 on my new book "SAP Basis Administration".
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