User Guides for Experiments - Revision history

Amujahid: /* Power Cycling the DAQ */

2023-03-14T20:56:38Z

Power Cycling the DAQ

← Older revision		Revision as of 20:56, March 14, 2023
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	=== Power Cycling the DAQ ===		=== Power Cycling the DAQ ===
	If the "soft" reboot was not successful, a hard reboot of the VME crates is necessary, which requires power cycling. If the remote PCU is operational, go to [[[Network Accessible Power Control Units of DGS]].		If the "soft" reboot was not successful, a hard reboot of the VME crates is necessary, which requires power cycling. If the remote PCU is operational, go to [[Network Accessible Power Control Units of DGS]].

	If access to Area 4 is necessary, check the monitor above the cage entrance for room status on ARIS 2.0. The Farday cup must be put "IN" if the area is locked, contact the operators (2-4115 from ANL landline) to request assistance. Click here for the procedure to [[Sweep Area 4]].		If access to Area 4 is necessary, check the monitor above the cage entrance for room status on ARIS 2.0. The Farday cup must be put "IN" if the area is locked, contact the operators (2-4115 from ANL landline) to request assistance. Click here for the procedure to [[Sweep Area 4]].

Amujahid: /* Other Guides for New Users */

2023-01-25T15:29:25Z

Other Guides for New Users

← Older revision		Revision as of 15:29, January 25, 2023
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	==Other Guides for New Users==		==Other Guides for New Users==
			*[[Understanding Gammasphere Interactively]]
	*[[Digitizer Guide for Beginners]]		*[[Digitizer Guide for Beginners]]

	''Go back to [[Digital Gammasphere Upgrade Project]]''		''Go back to [[Digital Gammasphere Upgrade Project]]''

Copp at 14:17, October 5, 2021

2021-10-05T14:17:24Z

← Older revision		Revision as of 14:17, October 5, 2021
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	*[[Digitizer Guide for Beginners]]		*[[Digitizer Guide for Beginners]]

	''Go back to [[Digital Gammasphere ~~and the SBX~~ Upgrade]]''		''Go back to [[Digital Gammasphere Upgrade Project]]''

Copp at 19:05, September 24, 2021

2021-09-24T19:05:06Z

← Older revision		Revision as of 19:05, September 24, 2021
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	If there is still a problem, contact the person ON CALL for the shift.		If there is still a problem, contact the person ON CALL for the shift.

	====		==Other Guides for New Users==
			*[[Digitizer Guide for Beginners]]

	''Go back to [[Digital Gammasphere and the SBX Upgrade]]''		''Go back to [[Digital Gammasphere and the SBX Upgrade]]''

Copp at 19:02, September 24, 2021

2021-09-24T19:02:36Z

← Older revision		Revision as of 19:02, September 24, 2021
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	If there is still a problem, contact the person ON CALL for the shift.		If there is still a problem, contact the person ON CALL for the shift.

			====

	''Go back to [[Digital Gammasphere and the SBX Upgrade]]''		''Go back to [[Digital Gammasphere and the SBX Upgrade]]''

Copp at 18:58, September 24, 2021

2021-09-24T18:58:58Z

← Older revision		Revision as of 18:58, September 24, 2021
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	~~== Experiment Run Procedures ==~~
	For directory structure, energy and pole/zero calibration see [[typical DGS run procedures]].		For directory structure, energy and pole/zero calibration see [[typical DGS run procedures]].

Copp at 18:55, September 24, 2021

2021-09-24T18:55:26Z

← Older revision		Revision as of 18:55, September 24, 2021
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	For directory structure, energy and pole/zero calibration see [[typical DGS run procedures]].		For directory structure, energy and pole/zero calibration see [[typical DGS run procedures]].

	===Digital Gammasphere Shift Notes===		==Digital Gammasphere Shift Notes==
	This section provides a walkthrough of a typical 8-hour shift using DGS. The main workspace looks like this:		This section provides a walkthrough of a typical 8-hour shift using DGS. The main workspace looks like this:
	[[File:DGS shift notes1.png\|center\|DGS main workspace ]]		[[File:DGS shift notes1.png\|center\|DGS main workspace ]]

	==== General Things to Watch ====		=== General Things to Watch ===
	*Run Control box in DGS Main Controller (top right) must show "Start; Save; Sort" during a run. Otherwise, data is not being recorded.		*Run Control box in DGS Main Controller (top right) must show "Start; Save; Sort" during a run. Otherwise, data is not being recorded.
	*TCP/IP rates (center grey boxes) should be changing, and Buffs Avail should be <400 when data is being written to disk.		*TCP/IP rates (center grey boxes) should be changing, and Buffs Avail should be <400 when data is being written to disk.
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	The second desktop in the above image (bottom right button) has several white terminal windows, one for each VME (IOC receiver), plus a terminal window with a dgs@dgs1 prompt for start/stop commands. Each VME terminal should update every 15 seconds showing the data in Mb/sec written to disk.		The second desktop in the above image (bottom right button) has several white terminal windows, one for each VME (IOC receiver), plus a terminal window with a dgs@dgs1 prompt for start/stop commands. Each VME terminal should update every 15 seconds showing the data in Mb/sec written to disk.

	==== Actions During Shift ====		=== Actions During Shift ===
	It is highly recommended to start a new run approximately every hour. If there is an incident that results in corrupt data for that run, less data would be lost.		It is highly recommended to start a new run approximately every hour. If there is an incident that results in corrupt data for that run, less data would be lost.
	In /dgsdata directory, stop the current run		In /dgsdata directory, stop the current run
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	df -h		df -h

	==== When VME(s) Crash ====		==== Check Histograms for Quality Control====
			Digital Gammsphere does not display "live" histograms for users. Users are responsible for checking histograms to ensure sensible data is being collected. Data can be merged, sorted, and displayed in ROOT while it is being collected. See [[analysis codes]] for details.

			Contact the person ON CALL if data is nonsensical.

			==Troubleshooting During Shift==
			This section describes the most common issues that can occur during a shift and how to fix it.

			=== When VME(s) Crash ===
	The first indication of a VME crashing is the TCP/IP rate drops to 0.0 and Buffs Avail continuously fall below 380 without recovering on their own. Stopping the current run and starting a new run before the Buffs Avail reach zero can prevent a crash. If Buffs Avail fall to 0.0, that VME has crashed and needs to be restarted. Check the terminal windows of the IOC receivers and look for an error message (ie something other than Mb/sec written to disk).		The first indication of a VME crashing is the TCP/IP rate drops to 0.0 and Buffs Avail continuously fall below 380 without recovering on their own. Stopping the current run and starting a new run before the Buffs Avail reach zero can prevent a crash. If Buffs Avail fall to 0.0, that VME has crashed and needs to be restarted. Check the terminal windows of the IOC receivers and look for an error message (ie something other than Mb/sec written to disk).

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	*Fifth, click "Scripts" and run "Digitizer Setup" script (takes over 1 min). This issues a series of commands setting digitizer channel PVs. At this point, Buffs Avail should read 400 again, and a new run can be started.		*Fifth, click "Scripts" and run "Digitizer Setup" script (takes over 1 min). This issues a series of commands setting digitizer channel PVs. At this point, Buffs Avail should read 400 again, and a new run can be started.

	==== Power Cycling the DAQ ====		=== Power Cycling the DAQ ===
	If the "soft" reboot was not successful, a hard reboot of the VME crates is necessary, which requires power cycling. If the remote PCU is operational, go to [[[Network Accessible Power Control Units of DGS]].		If the "soft" reboot was not successful, a hard reboot of the VME crates is necessary, which requires power cycling. If the remote PCU is operational, go to [[[Network Accessible Power Control Units of DGS]].

Copp at 18:43, September 24, 2021

2021-09-24T18:43:28Z

← Older revision		Revision as of 18:43, September 24, 2021
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	Turn off the crate and wait 30 sec before turning the power back on. Leave the shack and [[Sweep Area 4]].		Turn off the crate and wait 30 sec before turning the power back on. Leave the shack and [[Sweep Area 4]].

	Back in the Data Room, reboot the Trigger IOC.		Back in the Data Room, reboot the Trigger IOC. Click "Terminals" in DGS Main Controller and select Trigger IOC. This is like rebooting a VME IOC, a terminal window opens, hit "return" for a prompt, then use Ctrl+X to initiate the auto-reboot countdown
			Ctrl+X
			This takes over 1 min. As stated above, ignore any error messages, close the window once the prompt reappears. Next run "Lock All Setup", followed by "Digitizer Setup". Same as stated above.

			If there is still a problem, contact the person ON CALL for the shift.

	''Go back to [[Digital Gammasphere and the SBX Upgrade]]''		''Go back to [[Digital Gammasphere and the SBX Upgrade]]''

Copp at 18:34, September 24, 2021

2021-09-24T18:34:06Z

← Older revision		Revision as of 18:34, September 24, 2021
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	For directory structure, energy and pole/zero calibration see [[typical DGS run procedures]].		For directory structure, energy and pole/zero calibration see [[typical DGS run procedures]].

	===[[Digital Gammasphere Shift Notes]]===		===Digital Gammasphere Shift Notes===
	This section provides a walkthrough of a typical 8-hour shift using DGS. The main workspace looks like this:		This section provides a walkthrough of a typical 8-hour shift using DGS. The main workspace looks like this:
	[[File:DGS shift notes1.png\|center\|DGS main workspace ]]		[[File:DGS shift notes1.png\|center\|DGS main workspace ]]

Copp at 18:21, September 24, 2021

2021-09-24T18:21:06Z

@@ Line 28: / Line 28: @@
 The first indication of a VME crashing is the TCP/IP rate drops to 0.0 and Buffs Avail continuously fall below 380 without recovering on their own. Stopping the current run and starting a new run before the Buffs Avail reach zero can prevent a crash. If Buffs Avail fall to 0.0, that VME has crashed and needs to be restarted. Check the terminal windows of the IOC receivers and look for an error message (ie something other than Mb/sec written to disk).
-First, stop the current run. Then, attempt to reboot the affected receiver.
+*First, stop the current run.
 ''Go back to [[Digital Gammasphere and the SBX Upgrade]]''