hi, list friends:
I read the parper on oracle otn network:
http://otn.oracle.com/products/oracle9i/pdf/email_server_rac_deployment.pdf
And i have some question on that paper:
1.Since all node have 32GB (Page 5)RAM,and it is RAC, It does not need other
memory for failover from other nodes, why does it configure onlye 9GB(Page 18) data
buffer?
2.From statspack report(page 19), the original server have 186 Transactions
per second, and later the three nodes have also totol number of 171 Transactions per
second.So, the pressure on the servers are less than before.So, physical io should be
less than before,and with the RAC cache Fusion, there should be even less physical IO
.But from statspack report, in fact,there is more physical io than before? And oracle
did not give out the statistics about the Unix CPU load, response time change etc.
3.Page 9, since it has 3 nodes, how can they use the cluster_interconnect
parameter? If using two NIC card both node for internode communication, how did they
implement it?
Regards
zhu chao
Eachnet DBA
86-21-32174588-667
[EMAIL PROTECTED]
www.happyit.net
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Author: chao_ping
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