SAP AS ABAP Administration · Operation Modes & Logon Load Balancing

You have exactly two application servers and want high availability via a logon group. Is putting both instances in one group on those two servers the right move?

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More in Operation Modes & Logon Load Balancing

An instance restarts at 02:00 during the night batch mode. Right after startup the work-process mix matches the profile, not the night mode. Why, and does it self-correct?

Your application servers each have two network cards — a fast link to the database and the general network to the frontends. What must you configure so logons reach the right address?

You need to do service work on one application server without abruptly kicking users off. How do you drain new logons from it transparently?

Parallel RFC processing is overloading one dialog instance. Which mechanism balances that load, and why isn't it SMLG logon groups?

You suspect RFCs aren't running because of resource limits. Which transaction diagnoses it, and what does the Max. Resources figure actually represent?

When a user logs on with load balancing, how does SAP GUI end up connected to the least-loaded application server, given that sapmsg.ini only lists the message server?

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