TJ, Patrick, Dave:

at 15:33 PDT we rebooted h1guardian0 after getting sign-off from all subsystems. On restart, TJ noted CA connection errors with the Slow Controls Beckhoff machine h1ecatx1. Some workstations were apparently connecting to this IOC and other were not. Patrick noted that his CDS overview was connecting, but it was showing the last update times of 19:45:34 PDT Sunday 5/14 on all three PLCs, so we think this is when the IOC stopped updating and accepting any new channels.

The reason for the h1guardian0 reboot is two-fold, recoup RAM and lower processing times (load averages had been hitting 50 recently).