?????????????????????

???????????????????????????????????????????д??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????30%?40%???????????????????????????????????????????????????????????????????á?
????????????????????????????????????????????????????????о????????????????ν??е?????????????????????????????????????????????????????н?????

????????????????????????????????????????????????????C/S?????MIS?????????/??÷?????/??????????м??????????????÷????????????е?????????????÷?????????????????????????????????????????????ORB?????????????????????????÷?????????????????β?????????????е?????÷????????????????????????÷??????????????????????????????????????????????????У??????????????÷????????????е???????????????????????????????????1~10?????в??????????÷????????????????

?????????????????????￡?

?????????????

????1????????????

???????????????????????????????????

????2??????????

????2.1????

???????β????е?????????????????????????????????????ù??????????????

?????????в??????????????????????????????????????????????

????????????????????

???????????IBM XSeries250 PC Server????Microsoft Cluster??

????????????????????Oracle8.1.6??

????????÷????????????????????????????Microsoft Cluster???

????????200?????????????????????????????????????д??????????????150??????/??

????2.2??????

??????÷???????????????

????2.3?????????????

????????????????ó????????????

????????????е????????????????????

????3????????

????3.1??????????

???????????????????????????

?????????????????????8?????????????20??????????????????8??С???

?????????80?20???????????????80%???????20%????????????????80%???????1.6С???????

????????????????????

????????????????100????????15%??????????????????÷???????7??????70%??????????????????÷???????5??????????15%???????????????÷???????3?????????????????????????????????15%??????????????????????

????????????譴???????????2?????С?

???????????????????????100*15%*7+100*70%*5+100*15%*3??*2=300???/??

???????????????????300/160=1.875???/??

?????????????????????18750*80%??/??8*20%*3600??=2.60??/??

????????????￡???÷???????????????????????3??/??

????3.2??????????

????3.2.1?????????????????????

????1)???繃?????????????????????????????????????100M??????????????????10/100M???????

????2)??????IBM XSeries250??1G??棩PC Server??Microsoft Cluster??????????

????Windows 2000 Advance Server??Microsoft Cluster Server??MSCS????

????3)?????????????????????????????IBM XSeries??????????Oracle8.1.6?????? ?????Oracle Fail Safe??ofs????Active/Passive???á? ???????????????????????????VisiBroker??BDEAdministrator????

????4)??????????÷?????????

????5)??????PC????10???P??600/128M RAM????