Rapid After-hours Support Restores Data Visibility and Prevents Costly Startup Delays
During a critical process startup, operations came to a halt when the control system stopped historizing data. With no live or historical values visible, operators lost insight into performance, startup verification stalled, and the risk of costly downtime escalated by the minute. Waiting until the next day wasn’t an option, as every hour introduced operational and financial consequences.
An after-hours response uncovered the root cause impacting the Advanced Continuous Historian with PI (PI Historian)—full drives on the node prevented data from being written, despite no obvious system errors. Once unnecessary files were cleared, historization resumed immediately, systems came back online, and startup completed that same evening. This swift resolution delivered savings exceeding $120,000 while improving long-term awareness of disk space monitoring and reducing future outage risk.
An after-hours response uncovered the root cause impacting the Advanced Continuous Historian with PI (PI Historian)—full drives on the node prevented data from being written, despite no obvious system errors. Once unnecessary files were cleared, historization resumed immediately, systems came back online, and startup completed that same evening. This swift resolution delivered savings exceeding $120,000 while improving long-term awareness of disk space monitoring and reducing future outage risk.