How to get root cause of server reboot in IBM AIX ?

In this post we will look how to get root cause of server reboot in IBM AIX.

Lets check it step by step how to get the root cause.

1. Get last reboot time from the server.

ngeaix01--> last | grep -i reboot
reboot    ~                                   Apr 08 12:37

 

2. Check the shutdown/reboot error message available in errpt.

ngeaix01--> errpt | pg
IDENTIFIER TIMESTAMP  T C RESOURCE_NAME  DESCRIPTION
DE84C4DB   0408123821 I O ConfigRM       IBM.ConfigRM daemon has started.
A6DF45AA   0408123821 I O RMCdaemon      The daemon is started.
2BFA76F6   0408123721 T S SYSPROC        SYSTEM SHUTDOWN BY USER

 

3. Check out details of the error message.

ngeaix01--> errpt -aj 2BFA76F6
---------------------------------------------------------------------------
LABEL:          REBOOT_ID
IDENTIFIER:     2BFA76F6

Date/Time:       Thu Apr  8 12:37:18 2021
Sequence Number: 10419
Machine Id:      00C302E74C00
Node Id:         ngeaix01
Class:           S
Type:            TEMP
WPAR:            Global
Resource Name:   SYSPROC

Description
SYSTEM SHUTDOWN BY USER

Probable Causes
SYSTEM SHUTDOWN

Detail Data
USER ID
           0
0=SOFT IPL 1=HALT 2=TIME REBOOT
           0
TIME TO REBOOT (FOR TIMED REBOOT ONLY)
           0
ngeaix01-->

As per the logs above, we can see a user has initiated the reboot here.

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