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<== Date ==> <== Thread ==>

Subject: DEA Dead PVs [DEA]
From: Heinz Junkes via Tech-talk <tech-talk at aps.anl.gov>
To: EPICS Tech-Talk <tech-talk at aps.anl.gov>
Date: Fri, 1 May 2026 18:31:02 +0200
Hallo,
When I start a ca-gateway on a system where I don’t currently have any IOCs running, I find lots of dead PVs at startup that are presumably running on
other IOCs behind other gateways. But they’re not ‘all’ of them, are they? Where do these come from?
When I run a cainfo, can’t I resolve these PVs?

epics@gnu:/opt/ca-gateway/GNU$ more gateway.report
---------------------------------------------------------------------------
PV Summary Report: Wed Apr 29 19:55:01 2026

Exist test rate = 4.936252
Total real PV count = 524
Total virtual PV count = 4
Total connecting PV count = 0
Total connecting PVs: 0
Total dead PVs: 519
Total disconnected PVs: 0
Total inactive PVs: 1
Total active PVs: 4
Total active stat PVs: 0 [of 24]
Total active stat DESC PVs: 0 [of 24]

Internal PVs [INT]:
 State Name                            Group        Level Pattern

Connecting PVs [CON]:
 State Name                            Time         Group        Level Pattern

Dead PVs [DEA]:
 State Name                            Time         Group        Level Pattern
 DEA FHIISC:REAKTOR3:FLOW1-SET-ALM-MAX-LIMT_   0:00:03:40 GNU              0 .*
 DEA FHIISC:REAKTOR3:FLOW1-SET-ALM-MIN-LIMT_   0:00:03:40 GNU              0 .*
 DEA FHIISC:REAKTOR3:FLOW2-SET-ALM-MAX-LIMT_   0:00:03:40 GNU              0 .*
 DEA FHIISC:REAKTOR3:FLOW2-SET-ALM-MIN-LIMT_   0:00:03:40 GNU              0 .*
 DEA FHIISC:REAKTOR3:FLOW3-SET-ALM-MAX-LIMT_   0:00:03:40 GNU              0 .*
 DEA FHIISC:REAKTOR3:FLOW3-SET-ALM-MIN-LIMT_   0:00:03:40 GNU              0 .*
 DEA FHIISC:REAKTOR3:FLOW4-SET-ALM-MAX-LIMT_   0:00:03:40 GNU              0 .*
…
Danke Heinz
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Heinz Junkes          | VC: https://zoom.fhi.berlin/junkes
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D - 14195 Berlin
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