AclusteradministratorhasbeenaskedtoinstallHACMPontwonodeswiththefollowinghardware-twoCPUs，-1GBRAM，-one136GBdrive，-two10\/100\/1000Ethernetadapters，and-GBFibreChanneladaptersdualattachedtoSANstorage.Inordertoeliminatesinglepointsoffailure，theadministratorshouldfirstaddwhichofthefollowing（）
A.anadditional1GBRAMtoeachnode.
B.Anotherbootablemirroreddiskdrive.
C.A10\/100\/1000GBEthernetadaptertobeattachedtoaredundantswitch.
D.Nothing，becausethisisaviableclustersolutionwithnosinglepointsoffailure.
参考答案：B
