题目内容

WhileperformingasitesurveytodocumenttheexistingenvironmentbeforeimplementinganewHACMPcluster，itwasdiscoveredthataportfilteringfirewallwasbeingusedtoprotecttheproductionsystem.Theplanistocontinueusingthefirewallandaddasecondfirewalltoavoidasinglepointoffailure.Eachnodeinthetwo-nodeclusterwillhaveallofitsnetworkadaptersconnectedtothefirewalls，andallconnectionstothenodeswillpassthroughthesefirewalls.
WhatmustbeconsideredaboutHACMPinafirewallenvironment？（）

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