This reference lists the service health rules, the columns and dialogs of the Servers page, and how objects belong to sites. The User Guide chapter Servers and Sites links here. The Hosts tab is described in Host Monitoring Reference.
Overview
This reference lists the service health rules, the columns and dialogs of the Servers page, and how objects belong to sites. The User Guide chapter Servers and Sites links here. The Hosts tab is described in Host Monitoring Reference.
Service health rules
A server's service health is the worst of all reasons that apply. Order: Error, Warning, Unknown, Good. Each reason is listed in the server's dialog; the first is shown on the row.
State
Reason (as shown)
Applies to
Not monitored
No longer a scan target. Counts are from the last scan.
All
Not monitored
Disabled as a scan target.
All
Error
The last connection test failed.
All
Error
The last N scans failed (3 or more in a row, inventory or health)
PI Data Archive, AF Database
Warning
The last scan failed / The last 2 scans failed
PI Data Archive, AF Database
Warning
No successful health refresh since a time. Raised when the last success is older than 3 times the target's health cadence, and only while automatic monitoring is active and the target is included and not paused
PI Data Archive, AF Database
Warning
Scan automation reports that the target needs attention (its reason is shown)
PI Data Archive, AF Database
Warning
The change feed is failing; changes are picked up by full scans only.
PI Data Archive, AF Database
Warning
The change feed must be re-established by a full scan.
PI Data Archive, AF Database
Warning
The last PI Interface inventory failed.
PI Data Archive
Warning
The last PI Interface runtime poll failed.
PI Data Archive
Error / Warning
N AF databases have service health Error / Warning
AF Server
Unknown
Never tested and never scanned.
All
Good
None of the above
All
An AF Server has no scans of its own: its service health combines its connection test with its AF databases. A database with Unknown service health does not change the server. A PI Vision instance is judged only on being enabled and its connection test. An old inventory scan is never a service health reason.
Servers page tabs
Tab
Columns
Row actions
PI Data Archives
PI Data Archive (and version), Service Health, PI Points, Point Sources, PI Interfaces, PI Adapters
Show PI Points, Show Point Sources, Show PI Interfaces
AF Servers
AF Server, Service Health, AF Databases, AF Attributes, AF Analyses
Show AF Databases
AF Databases
AF Database, Service Health, AF Attributes, AF Analyses, AF Elements, Last Health Refresh
Show AF Attributes, Show AF Analyses, Show AF Elements
PI Vision
PI Vision Instance, Service Health, PI Vision Displays, Last Inventory
A Site column is added under All sites when there are two or more sites. The selected tab is part of the page address, so a shared link opens the same tab.
Card
Shows
All PI Data Archives / All AF Servers / All AF Databases / All PI Vision Instances
Every row matching the filters
Service Error
Servers PI Nexus+ cannot reach or keep current
Service Warning
Servers with failing scans, stale health or a failing change feed
With Bad PI Points / With Bad AF objects / With Display Errors
Servers whose content includes Bad or Error objects
Filter
Options
Service health
Any, Error, Warning, Good, Unknown, Not monitored
AF Server
AF Databases tab only; the AF Servers of the chosen site
Show
Monitored (default), Also not monitored
Servers CSV export
Item
Rule
Role
Operator; locked in the Evaluation edition
Rows
Every row of the tab in the chosen site, including servers that are not monitored. Search, filters and cards are ignored
Columns
Always includes Site. The PI Data Archive file also has the reasons, last inventory, last health refresh and change-feed state
Server dialogs
Dialog
Tabs
PI Data Archive
Overview, Point Sources, PI Interfaces, PI Adapters, PI Points
Server dialogs have no Issues or Change History tab. Overview shows the service health reasons, content health, details (site, version), the Host section when the server's host is monitored, and Scanning (last inventory, last health refresh, change-feed state).
Analytics item
Meaning
Estimated load
Sum over the analyses of average run time divided by trigger interval, from the Analysis Service statistics. An estimate, not a measurement. None measured without statistics
Estimated runtime per day
The analyses' estimated total run time per day
Performance warnings / Performance errors
Analyses with those performance findings
Costliest Analyses
The 5 active analyses with the highest estimated runtime per day
Site membership
Object
Belongs to
PI Data Archive, AF Server, PI Vision instance
The site chosen by an administrator; Default unless changed
AF database, AF elements, attributes, analyses, templates
The site of their AF Server
PI Points, PointSources, PI Interfaces
The site of their PI Data Archive
PI Adapter Collectors
The site of the AF Server holding their AF monitoring database
PI Vision displays
The site of their instance
Objects on a server that is not a registered target
No site; shown under All sites only
Rule
Value
Default site
Always exists; can be renamed, not deleted. Servers of a deleted site move to it. Hidden from the Site list while nothing is assigned to it
Sites visible
From two sites on
Site content health
Covers everything its servers and PI Vision instances hold
Site service health
The worst service health of its monitored PI Data Archives, AF Servers and PI Vision instances
Creating sites and assigning servers: Sites in the Administration Guide.
