Brocadeスイッチが継続的なハードウェア障害を報告していました

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MetroCluster FC
Brocadeスイッチ
ONTAP 9

問題

Brocadeスイッチは継続的なハードウェア障害を報告し、最終的に「故障」状態になった。
supportshowには、以下のエラーが表示されます：

FCN000001:admin> switchshow

switchName: FCN000001

switchType: 162.5

switchState: Faulty

switchMode: Native

switchRole: Faulty

switchDomain: 5

switchId: fffc05

switchWwn: 10:00:88:94:71:c1:d3:78

zoning: ON (CFG_G620_FAB_1_RCF_9_2b)

switchBeacon: OFF

FC Router: OFF

HIF Mode: OFF

errdump -a:

2026/03/27-19:13:45 (CEST), [C4-1045], 8144, CHASSIS, INFO, BrocadeG620,Single parity error detected in ftb statistics memory, slot 0 index 0

2026/03/27-19:13:45 (CEST), [C4-1010], 8145, CHASSIS, CRITICAL, BrocadeG620, S0,C0: Above normal hardware errors were observed: fault1:0xa, fault2:0xa thresh2:0xb000000a.

2026/03/27-19:13:45 (CEST), [C4-1056], 8146, CHASSIS, CRITICAL, BrocadeG620, Chip in Slot 0, Chip 0 getting faulted with reason 52.

2026/03/27-19:13:45 (CEST), [EM-1134], 8147, FFDC | CHASSIS, ERROR, BrocadeG620, Switch set to faulty, rc=20015.

2026/03/27-19:13:45 (CEST), [RAS-1001], 8148, CHASSIS, INFO, BrocadeG620, First failure data capture (FFDC) event occurred.

イベントログ：

ERROR fcvi.qlgc.ioErr: FC-VI adapter: FCVI driver on port 5a/5c received IO error. Status=FW detected response error (status code=0x121), FCVI opcode=WriteRequest (0x1), QPname=WAFL, QPindex=4/10, Remote node's systemid=