Duringnormalclusterprocessinginafive-nodecluster，oneofthenodesunexpectedlycrashes.AreviewofthesystemdumpindicatesthataDMStimeouthasoccurred.TheclusterisconfiguredtousediskheartbeatsasaPoint-to-Pointnetwork.Whatshouldbedonetoaddresstheproblemwiththisconfiguration？（）
A.Morediskshouldbeaddedtothediskheartbeatnetwork，allowingmorepathsforheartbeats.
B.AnRS232networkisrequiredtosupplyamorerobustnon-IPnetworkwhendisk heartbeatingisimplemented.
C.Thenetworktunableparametersshouldbechangedtoallowmoremissedheartbeatssince thedisksmaybeheavilyused.
D.Anerrornotificationmethodisrequiredtodeterminetheactiontotakeinresponsetoafailureofthediskheartbeat.
参考答案：C
