AFF A800 の予期しないリブートと DIMM-XX での ECC エラー

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環境

AFF A800

問題

自動パートナーテイクオーバーを伴う予期しないノードリブートが原因で自動的にケースが作成されました。例：

CLTFLT:HA Group Notification from node_name (CONTROLLER TAKEOVER COMPLETE AUTOMATIC - Communiction Error) ALERT

システムメモリのエラーによるパニック状態

ALERT         sk.panic: Panic String: ECC error at DIMM-6: CE-04-2011-42F4C628,ADDR 0xe8a61ae40,(Node(1), Memory controller(0), CH(0), DIMM(1), Rank(5), Bank Group(3), Bank(0x1), Row(0x2b2d), Col(0x190)) Uncorrectable Machine Check Error at CPU31. SKL_IMC0 Error: STATUS<0xfe00a84001010090>(VALID,OVERFLOW,UC,EN,MISCV,ADDRV,PCC,CORR_ERR_STATUS(0),CORR_ERR_CNT(0x2a1),OTHER_INFO(0),MscodDdrType(0x1),MscodDataRdErr,MCACOD(0x90))MISC<0x200002c120002086>(DataErrorChunk(0x2),McCmdChnl(0),McCmdMemRegion(0),McCmdOpcode(0x2),McCmdVld,SmiAD,SmiMsgClass(0),SmiOpcode(0x2),TrkId(0x100),Error_Type(0x4),ADDRMODE(0x2),ADDRLSB(0x6))ADDR<0x0000000e8a61ae40>(HIPHYADDR(0xe),LOPHYADDR(0x22986b9))(Node(1), Memory controller(0), CH(0), DIMM(1), Rank(5), Bank Group(3), Bank(0x1), Row(0x2b2d), Col(0x190), ADDR<0x0000000e8a61ae40>(HIPHYADDR(0xe),LOPHYADDR(0x22986b9))MISC<0x200002c120002086>(DataErrorChunk(0x2),McCmdChnl(0),McCmdMemRegion(0),McCmdOpcode(0x2),McCmdVld,SmiAD,SmiMsgClass(0),SmiOpcode(0x2),TrkId(0x100),Error_Type(0x4),ADDRMODE(0x2),ADDRLSB(0x6)).  in process id...