Hi, Oracle version :- 11.2.0.2 I have a two node RAC in IBM AIX.When we simulate 25 user load,I could see the following events in AWR.I have resolved direct path read. What is 'name-service call wait' event?I could not get much information from internet.Kindly throw some light on this. Event Waits Time(s) Avg wait (ms) % DB time Wait Class DB CPU 1,007 50.16 direct path read 53,425 251 5 12.52 User I/O name-service call wait 63 3 45 0.14 Other control file sequential read 1,093 2 2 0.09 System I/O latch: cache buffers chains 15,961 2 0 0.08 Concurrency Thanks and Regards, Nisha Mohan.A **************** CAUTION - Disclaimer ***************** This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely for the use of the addressee(s). If you are not the intended recipient, please notify the sender by e-mail and delete the original message. Further, you are not to copy, disclose, or distribute this e-mail or its contents to any other person and any such actions are unlawful. This e-mail may contain viruses. Infosys has taken every reasonable precaution to minimize this risk, but is not liable for any damage you may sustain as a result of any virus in this e-mail. You should carry out your own virus checks before opening the e-mail or attachment. Infosys reserves the right to monitor and review the content of all messages sent to or from this e-mail address. Messages sent to or from this e-mail address may be stored on the Infosys e-mail system. ***INFOSYS******** End of Disclaimer ********INFOSYS*** -- //www.freelists.org/webpage/oracle-l