「 Failed to recover SP 」を指定してシステムをブートできない

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Category:: fas-systems

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環境

AFF A220 / FAS27x0 / AFF C190
AFF A200 / FAS26x0
FAS80x0
AFF A300 / FAS8200
AFF A700 / FAS9000

問題

ストレージシステムは（ONTAPアップグレード中など）リブートされますが、ブートに失敗し、LOADERに移行します。例：

...

Waiting for SP ... SP failure. Resetting SP from primary FW. This can take a few minutes Waiting for SP ... SP failure. Resetting SP from backup FW. This can take a few minutes Waiting for SP ... Failed to recover SP IPMI PCI Slot Control failed. IPMI PCI Slot Configuration failed. Configuring Devices ... IPMI:Get controller FRU inventory:failed IPMI:Get midplane FRU 0 inventory:failed IPMI: Get NVRAM FRU inventory:failed

BIOS POST Failure(s) detected: SP IPMI failure. Abort AUTOBOOT

LOADER-A>

BIOS POST Failure(s) detected: Failed to get FRU data. Abort AUTOBOOT

サービスプロセッサ（SP）のイベントログでも同様のエラーメッセージが報告されます。例：

Record 1287: Tue Apr 14 14:34:05.000000 2020 [SysFW.notice]: IPMI:Read midplane FRU common header:timeout - retrying Record 1288: Tue Apr 14 14:34:10.000000 2020 [SysFW.notice]: IPMI:Read midplane FRU common header:timeout Record 1289: Tue Apr 14 14:34:13.000000 2020 [SysFW.notice]: Failed to recover SP Record 1290: Tue Apr 14 14:34:13.000000 2020 [SysFW.critical]: IPMI:Read midplane FRU common header:failed Record 1291: Sun Jan 01 00:02:58.340000 2017 [Trap Event.critical]: hwassist post_error (26) Record 1292: Tue Apr 14 14:34:14.000000 2020 [SysFW.critical]: IPMI PCI Slot Control failed. Record 1293: Sun Jan 01 00:02:59.310000 2017 [Trap Event.critical]: hwassist post_error (26) Record 1294: Tue Apr 14 14:34:18.000000 2020 [CFE.notice]: Loader time adjust: Set BMC time. Old time: Sun Jan 1 00:03:03 2017. New time: Tue Apr 14 14:34:18 2020. Record 1295: Tue Apr 14 14:34:18.000000 2020 [Boot Loader.notice]: Received time sync Record 1296: Tue Apr 14 14:34:20.000000 2020 [Boot Loader.critical]: Abort Autoboot due to BIOS POST failure. Record 1297: Tue Apr 14 14:34:20.280000 2020 [Trap Event.critical]: hwassist post_error (26) Record 1298: Tue Apr 14 14:34:24.020000 2020 [IPMI.notice]: 001c | 02 | EVT: 6fc220ff | System_FW_Status | Assertion Event, "Bootloader is running"

問題は、コントローラを再装着したあともe0M / SPにケーブルが接続されていなくても維持されます（「ノードのシャットダウン」で説明されているように、過剰なSPトラフィックの問題を排除するため、「SP IPMIの障害」が原因でブートできません）。