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System Monitor Status and Resource Metrics
The following table lists the system status and resource usage metrics sampled by System Monitor and the notification thresholds and rules for each that result in warnings (severity 1), alerts (severity 2), and “status OK” severity 0 notifications.
System Monitor Status and Resource Notifications
Metric Description Notification Rules
Disk Space
Available space in a database directory
  • < 250MB — warning
  • < 50MB — alert
  • > 250 after warning/alert — OK
Journal Space
Available space in the journal directory
  • < 250MB — warning
  • < 50MB — alert
  • > 250 after warning/alert — OK
Paging Percentage of physical memory and paging space used
  • paging space > 30% — warning
  • physical memory > 96% + paging space > 50% — alert
Lock Table Percentage of the lock table in use
  • > 85% — warning
  • > 95% — alert
  • < 85% after warning/alert — OK
Write Daemon
Status of the write daemon
  • write daemon is awake and processing its (non-empty) queue but has been on one cycle at least 10 seconds longer than the configured write daemon cycle time (default 80 seconds) — alert
  • write daemon completes a pass after alert — OK
ECP Connections
State of connections to ECP application servers or ECP data servers
  • state is Trouble for at least five (5) seconds — alert
Shadow Server Status of connection to shadow sources
  • trouble — warning
  • disconnected — alert
Shared Memory Heap (Generic Memory Heap) Status of shared memory heap (SMH), also known as generic memory heap (gmheap)
  • SMH (gmheap) status 1 — warning
  • SMH (gmheap) status 2 — alert
Open Transactions Duration of longest open local or remote (ECP) transactions
  • > 10 minutes — warning
  • > 20 minutes — alert
License Expiration Days until license expires
  • 7 days — warning
  • 5 days or fewer — alert (daily)
SSL/TLS Certificate Expiration Days until certificate expires
  • individual certificate expires within 30 days — warning (repeated daily)
  • one or more daily expiring certificate warnings — alert (summary of warnings, one per day)
ISCAgent (mirror members only) ISCAgent status
  • Unresponsive for <1 minute — warning
  • Unresponsive for >1 minute — alert


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