Skip to main content
NetApp Knowledge Base

CONTAP-170136: FAS8200 and AFF A300 systems might experience non-responsive CPUs followed by multiple watchdog controller disruptions

  1. Last updated
  2. Save as PDF
Views:
477
Visibility:
Public
Votes:
1
Category:
ontap-9
Specialty:
core
Last Updated:

Issue

  • Many sensor information cannot be read correctly.

> system sensors
Sensor Name      | Current    | Unit       | Status     | LCR       | LNC       | UNC       | UCR
-----------------+------------+------------+------------+-----------+-----------+-----------+-----------
CPU0_Temp_Margin | na         | degrees C  | na         | na        | na        | -11.000   | -1.000  
In_Flow_Temp     | 20.000     | degrees C  | ok         | 0.000     | 5.000     | 50.000    | 55.000
Out_Flow_Temp    | 27.000     | degrees C  | ok         | 0.000     | 5.000     | 65.000    | 75.000
PCI_Slot_Temp    | 25.000     | degrees C  | ok         | 0.000     | 5.000     | 60.000    | 70.000
Smart_Bat_Temp   | 22.000     | degrees C  | ok         | 0.000     | 5.000     | 60.000    | 70.000
CPU0_Error       | 0x0        | discrete   | Asserted   | na        | na        | na        | na      
CPU0_Therm_Trip  | 0x0        | discrete   | Asserted   | na        | na        | na        | na     
Wrench_Port_Up   | 0x0        | discrete   | Enabled    | na        | na        | na        | na
Attn_Sensor1     | 0x0        | discrete   | Asserted   | na        | na        | na        | na  
  • FAS8200 and AFF A300 storage systems might experience non-responsive CPUs followed by watchdog controller disruptions.

watchdog nmi on cpu 0, hang cpu is 0 in process idle: cpu0
Record 1108: Sat Apr 30 05:01:38 2022 [IPMI Event.critical]: NMI
Record 1109: Sat Apr 30 05:01:38 2022 [IPMI.notice]: e800 | 02 | EVT: 6fc824ff | System_Watchdog | Assertion Event, "Timer interrupt"
Record 1110: Sat Apr 30 05:01:39 2022 [IPMI Event.critical]: L2 watchdog timeout hard reset
Record 1111: Sat Apr 30 05:01:39 2022 [Trap Event.critical]: hwassist l2_watchdog_reset (29)
Record 1112: Sat Apr 30 05:01:45 2022 [IPMI.notice]: e900 | 02 | EVT: 6fc104ff | System_Watchdog | Assertion Event, "Hard reset"

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.