both node no ACPP、INBACP、fail in storage show fault -v

Enclosure Status: critical
Channel: 0a
Shelf: 0
Shelf Type: DS212-12
Product Serial Number: xxxxxxxxxxxxx
Module Type: IOM12E

Enclosure:
Element Status      Status Bytes  Status Descriptions
  1: OK         01,00,02,00  FAIL

Vendor Unique Element 85-IOM12E: (ACP)
Element Status            Status Bytes  Status Descriptions
  1 [IOM12E A]   : CRITICAL      02,18,00,40  NO ACPP, INBACP, FAIL
  2 [IOM12E B]   : CRITICAL      02,18,00,40  NO ACPP, INBACP, FAIL

•  EMSログ：

[?]  Thu May 15 04:02:33 +0800 [Node-A: dsa_worker0: ses.status.ACPError:alert]: DS212-12 (S/N XXXXXXXX) shelf 0 on channel 0b ACP Processor error for SAS shelf ACP processor 1: critical status ; Alternate Control Path hardware failed This module is on the rear of the shelf at the top left, on shelf module A.
 [?]  Thu May 15 04:02:33 +0800 [Node-A: dsa_worker0: ses.status.ACPError:alert]: DS212-12 (S/N XXXXXXXX) shelf 0 on channel 0b ACP Processor error for SAS shelf ACP processor 2: critical status ; Alternate Control Path hardware failed This module is on the rear of the shelf at the top right, on shelf module B.
 [?]  Thu May 15 04:02:42 +0800 [Node-A: statd: monitor.shelf.fault:alert]: Critical fault reported on disk storage shelf attached to channel 0a. Check fans, power supplies, disks, and temperature sensors.
 [?]  Thu May 15 04:02:42 +0800 [Node-A: statd: callhome.shlf.fault:error]: Call home for SHELF_FAULT

 [?]  Thu May 15 04:02:33 +0800 [Node-B: dsa_worker5: ses.status.ACPError:alert]: DS212-12 (S/N XXXXXXXX) shelf 0 on channel 0a ACP Processor error for SAS shelf ACP processor 1: critical status ; Alternate Control Path hardware failed This module is on the rear of the shelf at the top left, on shelf module A.
 [?]  Thu May 15 04:02:33 +0800 [Node-B: dsa_worker5: ses.status.ACPError:alert]: DS212-12 (S/N XXXXXXXX) shelf 0 on channel 0a ACP Processor error for SAS shelf ACP processor 2: critical status ; Alternate Control Path hardware failed This module is on the rear of the shelf at the top right, on shelf module B.
 [?]  Thu May 15 04:02:42 +0800 [Node-B: statd: monitor.shelf.fault:alert]: Critical fault reported on disk storage shelf attached to channel 0a. Check fans, power supplies, disks, and temperature sensors.
 [?]  Thu May 15 04:02:42 +0800 [Node-B: statd: callhome.shlf.fault:error]: Call home for SHELF_FAULT

 [?]  Thu May 15 04:03:00 +0800 [Node-B: monitor: monitor.globalStatus.critical:EMERGENCY]: Disk shelf fault.
 [?]  Thu May 15 04:03:00 +0800 [Node-A: monitor: monitor.globalStatus.critical:EMERGENCY]: Disk shelf fault.

• 両方の コントローラ（！）LEDが ユニットの背面に点灯しています。