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Flexible server monitoring

Introducing Simon 5!

Simon version 5 is now available. It is a massive update, introducing a much-requested feature: syncing the Simon data between multiple Macs, plus a Simon Status service, a Link Checker filter, improved Find filter, iMessage and Speak Error notifiers, a new app icon, and much more.

Important: please note that Simon 5 requires a minimum of macOS 10.12 (Sierra), and is a paid upgrade from Simon 4. Purchasers since September 1, 2020 automatically get a version 5 license (that also works in previous versions).

Read the Simon What's New page for details.

Simon preventing computer shutdown

I've had a few instances lately where Simon prevented the shutdown of the computer (manual and programmed). I believe it may have been related to the harddisk monitor (my drive got 90% full).

How can I troubleshoot this?

David Sinclair's picture

Re: Simon preventing computer shutdown

Is it preventing shutdown due to Simon becoming unresponsive, or is it displaying a quit confirmation that is unanswered?

If it's unresponsive, that would suggest that it is getting stuck doing something, so a "sample" when Simon is unresponsive might help indicate the cause.  Please do the following:

1. Open Activity Monitor;
2. Click on Simon;
3. Click Sample Process;
4. Click Save... and save to a file;
5. Send me the file.

Another useful thing is to look for errors in the console log:

1. Launch Console (in /Applications/Utilities);
2. Type "simon" in the Filter toolbar field;
3. Copy all remaining lines and paste in a reply.