Skip to main content
NetApp Knowledge Base

Management controller unavailable SEL entry due to false positive AC lost event

Last Updated:

Applies to

  • NetApp H610S storage node
  • NetApp H615C compute node
  • System Event Log (SEL)


"AC Lost" SEL event prior the “Management controller unavailable” with sensor number 0x7a but a storage node did not reboot

SEL Record ID          : 00a7
Record Type           : 02
Timestamp             : 11/24/2022 11/24/2022
Generator ID          : 0020
EvM Revision          : 04
Sensor Type           : Management Subsys Health
Sensor Number         : 7a
Event Type            : Sensor-specific Discrete
Event Direction       : Assertion Event
Event Data            : 0306ff
Description           : Management controller unavailable

Here are SEL log entries as shown on H615C nodes -

Aug/12/2023    16:06:17        [Information]    [Power Unit]    [Power Unit]    Power Off / Power Down - Deasserted
Aug/12/2023    16:06:12        [Warning]        [BMC FW Health]    [Management Subsystem Health]    Management controller unavailable (BMC hardware watchdog timeout reset) - Asserted
Aug/12/2023    15:36:49        [Information]    [Power Unit]    [Power Unit]    AC Lost - Asserted
Jul/8/2023    15:36:18        [Information]    [Power Unit]    [Power Unit]    Power Off / Power Down - Deasserted
Jul/8/2023    15:36:13        [Warning]        [BMC FW Health]    [Management Subsystem Health]    Management controller unavailable (BMC hardware watchdog timeout reset) - Asserted
Jul/8/2023    15:14:23        [Information]    [Power Unit]    [Power Unit]    AC Lost - Asserted


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.