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ディスクがPoisoned Transaction Layer Packet(PTLP)を受信したことによるテイクオーバー

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環境

  • ONTAP 9
  • 内蔵ストレージ搭載のAFF / FASシステム

問題

  • ディスクがPoisoned Transaction Layer Packet(PTLP)を受信したことによるテイクオーバー:

PANIC: Uncorrectable Machine Check Error at CPU1. SKL_IIO Error: STATUS<0xf780000000010405>(VALID,OVERFLOW,UC,EN,ADDRV,PCC,S,AR,CORR_ERR_STATUS(0),CORR_ERR_CNT(0),MSCOD(0x1),MCACOD(0x405))IIO Machine Check from device(s):RPT(22,0,0):ErrSrcID(CorrSrc(0x1898),UCorrSrc(0)), PLX PCIE 9797 switch on Controller, PLX PCIE 9797 switch on Controller. , ADDR(0).  in process idle: cpu1 on release 9.12.1P5 (C) on Tue Feb 13 10:00:03 PST 2024

  • システムログの分析では、次のものが見つかりました。これは特定のドライブを指しています(次の出力では14)。

"Poisoned Tranasaction Layer Packet (PTLP)"
   This indicates an error on the link between these devices:
Dv[a824](27,0,0) in slot 14: PCI Device 144d:a824 in slot 14 on Controller
Br[9797](24,2,0): PLX PCIE 9797 switch on Controller

  • そのドライブについてEMSでエラーが報告されています:

​​​​​​​Tue Feb 13 10:00:07 -0800 [cluster: scsi_cmdblk_strthr_admin: disk.timeout.flush.start:debug]: Aggressive timeout flush started on disk 0n.14.

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