Content
Thank you David
-Kevin Seifert, AutoSys LLC
________________________________
From: David Noellsch <DavidN@CannonCorp.us>
Sent: Tuesday, April 21, 2026 12:49 PM
To: Kevin Seifert <kevin@autosysnet.com>; Mason Radke <mason@autosysnet.com>
Cc: Nichols, Jerry <jenichl@countyofsb.org>
Subject: Re: Laguna SCADA issue
I've stopped the platform and all engines on app-server-1. One of the engines was stuck in a sync cycle with its redundant partner on server 2. I stopped the partner engine on server 2 temporarily to allow a clean termination on server 1.
Everything is running on server 2 now. I'm monitoring for a few minutes. Then I will perform a repair install on server 1.
David Noellsch, PE
Principal Control System Engineer
D: 661.616.6228 C: 213.215.9673
DavidN@CannonCorp.us<mailto:DavidN@CannonCorp.us> | LinkedIn<https://www.linkedin.com/company/cannon->
Cannon
Reliable Responsive Solutions
________________________________
From: Kevin Seifert <kevin@autosysnet.com>
Sent: Tuesday, April 21, 2026 2:15 PM
To: David Noellsch <DavidN@CannonCorp.us>; Mason Radke <mason@autosysnet.com>
Cc: Nichols, Jerry <jenichl@countyofsb.org>
Subject: Re: Laguna SCADA issue
** WARNING: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. **
Adding @Mason Radke<mailto:mason@autosysnet.com> to the chain
-Kevin Seifert, AutoSys LLC
________________________________
From: David Noellsch <DavidN@CannonCorp.us>
Sent: Tuesday, April 21, 2026 12:13 PM
To: Kevin Seifert <kevin@autosysnet.com>
Cc: Nichols, Jerry <jenichl@countyofsb.org>
Subject: Re: Laguna SCADA issue
Kevin,
Thanks for sending. This is some good background info. I agree a repair install is likely needed. Let me try to login. I assume VPN remote connection is still working.
David Noellsch, PE
Principal Control System Engineer
D: 661.616.6228 C: 213.215.9673
DavidN@CannonCorp.us<mailto:DavidN@CannonCorp.us> | LinkedIn<https://www.linkedin.com/company/cannon->
Cannon
Reliable Responsive Solutions
________________________________
From: Kevin Seifert <kevin@autosysnet.com>
Sent: Tuesday, April 21, 2026 2:01 PM
To: David Noellsch <DavidN@CannonCorp.us>
Cc: Nichols, Jerry <jenichl@countyofsb.org>
Subject: Laguna SCADA issue
** WARNING: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. **
Here is the hand-off information Mason gave me.
Let me know what you think.
Thanks in advance.
Kevin Seifert
![[20260421_19db1a8b97c5_Outlook-0m0loqwi.png]]
AutoSys LLC
kevin@autosysnet.com<mailto:kevin@autosysnet.com>
805-835-9595