介绍了在邮政储蓄省处理中心的SAN环境下，如何实现无风险的新旧业务主机切换。
It introduces how to replace the old host system for postal savings by new ones in SAN environment of province class processing center.
居民也不再过分看重仅含有无风险价值的储蓄利率，更关注包含风险价值的金融市场的收益；
Theinhabitant also no longer excessively regards as important onlyincludes the non- risk value the deposit interest rate, pays attentioncontains the risk value the money market income;
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