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HELP!! My DB writes after Upgrading to a MP-Server all 10 Minutes a Redo-Log!

From: Uwe Fischer <fischer_at_ilb.de>
Date: 1997/12/19
Message-ID: <349A5236.EE30EBB9@ilb.de>#1/1

Hi,

after upgrading my DB-Server (Oracle 7.2.3 / AIX 4.2) to a MP-Server (4 CPU, 1GB Memory) my
DB writes all 10 Minutes a 20MB Redo-Log!! On the old Server (1 CPU, 512 MB Memory, AIX 3.25) only max. 20 Redo-Logs was be written.

The 'Redo Log Allocation Latch Contention' is very bad (98,14) (thanks to Menlo Software - Query 45). The old Server has 0,02! I have changed the value LOG_SIMULTANEOUS_COPIES to 8 from 4 and reduced LOG_SMALL_ENTRY_MAX_SIZE from 800 to 400. But no effect!!!

The Application (SAP-R3) is the same how on the old Server - no change!!

What can I do?????

Thanks for your help.

(fischeru_at_ilb.de) Received on Fri Dec 19 1997 - 00:00:00 CST

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