Actually, I think “preShutdown” will do it since it passes the type of shutdown “abnormal” for a crash to the call back - I can use that to send a Slack message. mmaddcallback node-abort --event preShutdown --command /usr/local/sbin/callback-test.sh --parms "%eventName %reason" and you get either: preShutdown normal preShutdown abnormal Bob Oesterlin Sr Principal Storage Engineer, Nuance From: <gpfsug-discuss-bounces at spectrumscale.org> on behalf of Marc A Kaplan <makaplan at us.ibm.com> Reply-To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org> Date: Wednesday, January 30, 2019 at 3:17 PM To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org> Subject: [EXTERNAL] Re: [gpfsug-discuss] Node ‘crash and restart’ event using GPFS callback? We have (pre)shutdown and pre(startup) ... Trap and record both... If you see a startup without a matching shutdown you know the shutdown never happened, because GPFS crashed. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20190131/099a6951/attachment.html>