TANGO monitoring attributes

The following table lists the TANGO attributes that can be monitored. For more information about the attributes check the ska_pst.lmc.beam API page or click on each attribute name to be deep-linked into the Python API that provides more information about the attribute.

The attributes except diskCapacity, diskUsedBytes, diskUsedPercentage and availableDiskSpace are only valid during a PST scan.

The RECV subcomponent provides attributes that report counters (e.g. malformedPackets) and rates (e.g. malformedPacketRate) for problems detected on the interface between the Correlator Beam Former (CBF) and PST. If any of the rate values are > 0.0 a warning should be reported, noting this value could return to 0.0 if the problem is intermittent. In particular, the dataDropRate could indicate network issues between CBF and PST.

Any of the STAT subcomponent variance attributes (e.g. realPolAVarianceFreqAvg, imagPolAVarianceFreqAvg, etc) that have a value of 0.0 during a scan means that all data received from the CBF are zero which indicates a problem with the rescaling applied to data stream in the CBF. For any of the clipped values (e.g. imagPolANumClippedSamples) a positive value could mean strong RFI is present (valid and expected) or that there are rescaling problems in the CBF.

Name	Type	Subcomponent	Notes
dataReceiveRate	float	RECV
dataReceived	int	RECV
dataDropRate	float	RECV	Warn: if > 0.0
dataDropped	int	RECV
misorderedPackets	int	RECV
misorderedPacketRate	float	RECV	Warn: if > 0.0
malformedPackets	int	RECV
malformedPacketRate	float	RECV	Warn: if > 0.0
misdirectedPackets	int	RECV
misdirectedPacketRate	float	RECV	Warn: if > 0.0
checksumFailurePackets	int	RECV
checksumFailurePacketRate	float	RECV	Warn: if > 0.0
timestampSyncErrorPackets	int	RECV
timestampSyncErrorPacketRate	float	RECV	Warn: if > 0.0
seqNumberSyncErrorPackets	int	RECV
seqNumberSyncErrorPacketRate	float	RECV	Warn: if > 0.0
noValidPolarisationCorrectionPackets	int	RECV
noValidPolarisationCorrectionPacketRate	float	RECV	Warn: if > 0.0
noValidStationBeamPackets	int	RECV
noValidStationBeamPacketRate	float	RECV	Warn: if > 0.0
noValidPstBeamPackets	int	RECV
noValidPstBeamPacketRate	float	RECV	Warn: if > 0.0
dataRecordRate	float	DSP
dataRecorded	int	DSP
diskCapacity	int	DSP
diskUsedBytes	int	DSP
diskUsedPercentage	int	DSP
availableDiskSpace	float	DSP
expectedDataRecordRate	float	DSP
availableRecordingTime	float	DSP	Warn: if <= 60.0 Alarm: if <= 10.0
dspProcessingTime	float	DSP (FT)
dspDataTime	float	DSP (FT)
dspBytesProcessed	int	DSP (FT)
dspProcessingTimePercent	float	DSP (FT)
dspOverallEfficiency	float	DSP (FT)	Warn: if <= 1.2 Alarm if <= 1.05
dspEfficiency	float	DSP (FT)	Warn: if <= 1.2 Alarm if <= 1.05
dspBytesProcessingRate	float	DSP (FT)
ringBufferUtilisation	float	SMRB	Warn: if >= 50.0 Alarm: if >= 90.0
realPolAMeanFreqAvg	float	STAT
realPolAVarianceFreqAvg	float	STAT	Warn: if == 0.0
realPolANumClippedSamples	int	STAT	Warn: if > 0
imagPolAMeanFreqAvg	float	STAT
imagPolAVarianceFreqAvg	float	STAT	Warn: if == 0.0
imagPolANumClippedSamples	int	STAT	Warn: if > 0
realPolAMeanFreqAvgRfiExcised	float	STAT
realPolAVarianceFreqAvgRfiExcised	float	STAT	Warn: if == 0.0
realPolANumClippedSamplesRfiExcised	int	STAT	Warn: if > 0
imagPolAMeanFreqAvgRfiExcised	float	STAT
imagPolAVarianceFreqAvgRfiExcised	float	STAT	Warn: if == 0.0
imagPolANumClippedSamplesRfiExcised	int	STAT	Warn: if > 0
realPolBMeanFreqAvg	float	STAT
realPolBVarianceFreqAvg	float	STAT	Warn: if == 0.0
realPolBNumClippedSamples	int	STAT	Warn: if > 0
imagPolBMeanFreqAvg	float	STAT
imagPolBVarianceFreqAvg	float	STAT	Warn: if == 0.0
imagPolBNumClippedSamples	int	STAT	Warn: if > 0
realPolBMeanFreqAvgRfiExcised	float	STAT
realPolBVarianceFreqAvgRfiExcised	float	STAT	Warn: if == 0.0
realPolBNumClippedSamplesRfiExcised	int	STAT	Warn: if > 0
imagPolBMeanFreqAvgRfiExcised	float	STAT
imagPolBVarianceFreqAvgRfiExcised	float	STAT	Warn: if == 0.0
imagPolBNumClippedSamplesRfiExcised	int	STAT	Warn: if > 0