Tuning DBWR

Hi All,

   I am having a performance problem whenever there is a log switch, and when DBWR writes dirty buffer to disk. It takes 2 minutes for DBWR to complete its job, during that time there is a I/O Bottleneck. I am running Oracle 8.05 on HPUX 11.0 ( 32 bit), i am running 4 DBWR's. I have performace problem only during this 2 minute interval. Any Suggestions is highly appreciated,

Thanks,

Sandra

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