I notice random shutdowns about once a month. I started the syslog server to find the issue(s), however, I can't find anything. The Telegram bot sent me a message about the unclean shutdown at 12:03 am. If I remember correctly, the unclean shutdowns almost always happen around that time. Nothing seems to be going on, but my guess is that it can have something to do with the flash backup service provided by Unraid. This is the only scheduled task around that time.

 

This is what the log says around the time of the unclean shutdown:

 

Quote

Oct 26 23:51:05 Executor autofan: Highest disk temp is 0C, adjusting fan speed from: 153 (60% @ 889rpm) to: OFF (0% @ 888rpm)
Oct 26 23:51:05 Executor autofan: Highest disk temp is 0C, adjusting fan speed from: 153 (60% @ 930rpm) to: OFF (0% @ 930rpm)
Oct 26 23:51:37 Executor autofan: Highest disk temp is 0C, adjusting fan speed from: 153 (60% @ 925rpm) to: OFF (0% @ 925rpm)
Oct 26 23:51:37 Executor autofan: Highest disk temp is 0C, adjusting fan speed from: 153 (60% @ 889rpm) to: OFF (0% @ 884rpm)
Oct 26 23:52:23 Executor autofan: Highest disk temp is 0C, adjusting fan speed from: 153 (60% @ 917rpm) to: OFF (0% @ 926rpm)
Oct 26 23:52:54 Executor autofan: Highest disk temp is 0C, adjusting fan speed from: 153 (60% @ 930rpm) to: OFF (0% @ 943rpm)
Oct 26 23:56:10 Executor autofan: Highest disk temp is 0C, adjusting fan speed from: 153 (60% @ 888rpm) to: OFF (0% @ 881rpm)
Oct 26 23:56:10 Executor autofan: Highest disk temp is 0C, adjusting fan speed from: 153 (60% @ 935rpm) to: OFF (0% @ 946rpm)
Oct 26 23:56:42 Executor autofan: Highest disk temp is 0C, adjusting fan speed from: 153 (60% @ 923rpm) to: OFF (0% @ 924rpm)
Oct 26 23:56:42 Executor autofan: Highest disk temp is 0C, adjusting fan speed from: 153 (60% @ 881rpm) to: OFF (0% @ 879rpm)
Oct 26 23:57:29 Executor autofan: Highest disk temp is 0C, adjusting fan speed from: 153 (60% @ 924rpm) to: OFF (0% @ 918rpm)
Oct 26 23:57:59 Executor autofan: Highest disk temp is 0C, adjusting fan speed from: 153 (60% @ 930rpm) to: OFF (0% @ 941rpm)
Oct 27 00:04:02 Executor file.activity: Starting File Activity
Oct 27 00:04:02 Executor emhttpd: Starting File Activity...
Oct 27 00:04:02 Executor file.activity: File Activity inotify starting
Oct 27 00:04:03 Executor inotifywait[12399]: Setting up watches.  Beware: since -r was given, this may take a while!
Oct 27 00:04:03 Executor rsyslogd: [origin software="rsyslogd" swVersion="8.2102.0" x-pid="12344" x-info="https://www.rsyslog.com"] start
Oct 27 00:04:05 Executor root: Delaying execution of fix common problems scan for 10 minutes
Oct 27 00:04:05 Executor unassigned.devices: Mounting 'Auto Mount' Devices...
Oct 27 00:04:05 Executor emhttpd: /usr/local/emhttp/plugins/user.scripts/backgroundScript.sh "/tmp/user.scripts/tmpScripts/case_fans/script" >/dev/null 2>&1
Oct 27 00:04:05 Executor emhttpd: Starting services...
Oct 27 00:04:05 Executor emhttpd: shcmd (61): /etc/rc.d/rc.samba restart
Oct 27 00:04:05 Executor wsdd2[9451]: 'Terminated' signal received.
Oct 27 00:04:05 Executor winbindd[9465]: [2024/10/27 00:04:05.418539,  0] ../../source3/winbindd/winbindd_dual.c:1950(winbindd_sig_term_handler)
Oct 27 00:04:05 Executor winbindd[9461]: [2024/10/27 00:04:05.418542,  0] ../../source3/winbindd/winbindd_dual.c:1950(winbindd_sig_term_handler)
Oct 27 00:04:05 Executor winbindd[9465]:   Got sig[15] terminate (is_parent=0)
Oct 27 00:04:05 Executor winbindd[9461]:   Got sig[15] terminate (is_parent=1)
Oct 27 00:04:05 Executor wsdd2[9451]: terminating.
Oct 27 00:04:05 Executor winbindd[10615]: [2024/10/27 00:04:05.418799,  0] ../../source3/winbindd/winbindd_dual.c:1950(winbindd_sig_term_handler)
Oct 27 00:04:05 Executor winbindd[10615]:   Got sig[15] terminate (is_parent=0)
Oct 27 00:04:05 Executor kernel: nct6683: Found NCT6683D or compatible chip at 0x4e:0xa20
Oct 27 00:04:05 Executor kernel: nct6683 nct6683.2592: NCT6683D EC firmware version 1.0 build 05/05/20
Oct 27 00:04:07 Executor root: Starting Samba:  /usr/sbin/smbd -D
Oct 27 00:04:07 Executor smbd[13444]: [2024/10/27 00:04:07.647630,  0] ../../source3/smbd/server.c:1741(main)
Oct 27 00:04:07 Executor smbd[13444]:   smbd version 4.17.12 started.
Oct 27 00:04:07 Executor smbd[13444]:   Copyright Andrew Tridgell and the Samba Team 1992-2022
Oct 27 00:04:07 Executor root:                  /usr/sbin/wsdd2 -d -4
Oct 27 00:04:07 Executor wsdd2[13487]: starting.
 

So, basically it's the autofan plugin regulating the fan speeds for the spun down array and then the boot sequence starts, right?

Is there any other way to find out what caused the shutdown?

executor-diagnostics-20241027-0713.zip

Edited October 27, 20241 yr by Hiko0

If you meant the server is shutting down/rebooting on its own, that's almost always a hardware problem.

 

 

Hm, so maybe I‘ll start with Memtest then.