SAP 登陆平衡(SAP Logon Balancing)

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  • At system startup, program SAPMSSY6 executes RSRZLLG0, which is a cyclical background program for determining logon priority list. Program RSRZLLG0 then runs every 5 minutes and after every fourth logon. Note: RFC users are checked after 5 minutes only, not after the fourth logon.
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  • Program RSRZLLG0 reads performance data (average dialog response time, number of users) for all instances and calculates weights (answer_weight and user_weight) based on this data.
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  • Based on the calculation, the higher the answer_weight, the better the response time (the same applies for the user_weight).
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  • An overall instance weight (instance_weight = (answer_weight * 5) + user_weight) is then calculated for all instances.
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  • The favorite server for a particular logon group is the server with the highest instance_weight for that group.
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  • To display information for favorite logon servers, call Transaction SMLG and choose Goto >> System diagnosis >> Msg. server status area.

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