Bräuning, H.

Hoffmann, T.

GSI Repository

REMBRANDT – The REMote Beam instRumentation And Network DiagnosisToolT. Hoffmann1 and H. Bra¨uning11GSI, Darmstadt, GermanyIntroductionAt FAIR, all beam instrumentation devices and associ-ated data acquisition components will be distributed andinstalled over a large and partially inaccessible radiationexposed area. Besides operation of the device itself, likeacquisition of data, it is mandatory to control also the sup-porting LAN based components like VME/µTCA crates,front-end controllers (FEC), middle ware servers and more,to reduce trouble-shooting efforts and reaction times onDAQ system failures. Fortunately, many commercial sys-tems provide means for remote control and monitoring us-ing a variety of standardized protocols. REMBRANDT is aJava framework, which allows the authorized user to moni-tor and control remote systems while hiding the underlyingprotocols and connection information such as IP addresses,user-ids and passwords.ArchitectureREMBRANDT is based on a client-server architecture,which is shown in Figure 1. The clients as well as theserver are fully implemented in Java. Thus, the same ap-plication can be started in the main control room (LinuxX-terminals) and/or on the office PC (typically MicrosoftWindows) and can be distributed via Java webstart.The REMBRANDT server periodically queries all de-vices within several separate monitor threads typically ev-ery 10 seconds. It also logs changes in the device statesinto a data base, send notifications by e-mail to maintain-ers, handles access control and provides a web server forread-only access to the device states and logs.Several clients are available to the REMBRANDT user.Besides the main control and monitoring tool, clients forsystem information management, database and user admin-istration are provided. All clients interact with the serverexclusively by Remote Method Invocation (RMI), which isa proven standard mechanism within JAVA for procedurecalls within a network. Thus, complex subscribe/publishprocedures are avoided.Currently, REMBRANDT supports the following pro-tocols to control (switch on/off, regulate fan speed, etc.)and monitor different types of hardware: SNMP (SimpleNetwork Management Protocol); iAMT (Intel Active Man-agement Technology); IPMI (Intelligent Platform Manage-ment Interface); Ping; RDA (remote device access [1] forFESA [2] devices). REMBRANDT also provides directterminal access to devices via telnet, ssh or iAMT SOL(Serial-Over-LAN). It hides the login information as wellas the actual connection specifics, i.e. directly or via a ter-minal server. Besides obtaining a login shell this is mainlyused to oberve the device boot process for diagnostic pur-poses.MySQL Database- Device-Classes- Devices- Users- Logging- Archiving-DeviceMonitor-UserManagementDeviceConfiguration AdministrationMonitor ThreadCronThreadAll.High VoltageSystemsµTCACPU & MCHVMECPU & Crate IndustryPCSystem Information ManagerHardwareDatabaseChangelogDatabaseTroubleShootingDatabaseLANIPMI, SNMP, iAMTTELNET, Ping, SSH, etc.Device AccessSingleRemote Method InvocationGET, SET, …Other LAN HardwareClient TierServer TierData Acquisition HardwareFigure 1: The REMBRANDT software architecture.OutlookREMBRANDT will significantly help to keep a statusoverview over the huge amount of expected BI DAQ andinfrastructure systems at FAIR. It is currently in the testphase and already covers over 90% of the foreseen devicetypes. Future development will focus on the scalabilitywith a much larger number of devices and additional pro-tocols like IPMI Serial-Over-LAN or evaluation of logfileslike syslog.Furthermore, REMBRANDT should be considered asonly one, albeit major, pillar in the global remote moni-tor and control concept for beam diagnostic devices. It iscomplemented by IP based KVM switches for VGA/USBequipped systems and PLC controlled power supply unitsof beam line installed DAQ components, such as digitalcameras, to provide permanent access and full remote resetcapability.References[1] N. Trofimov et al., “Remote Device Access in the New CERNAccelerator Controls Middleware”, ICALEPCS’01, San Jose,California, USA, p. 496.[2] T. Hoffmann, M. Schwickert, G. Jansa, “FESA at FAIR”,PAC09, Vancouver, BC, Canada, p. 4794.FG-UNILAC-12 GSI SCIENTIFIC REPORT 2013308 doi:10.15120/GR-2014-1-FG-UNILAC-12

REMBRANDT - The REMote Beam instRumentation And Network Diagnosis Tool

http://repository.gsi.de/record/68009/files/FG-UNILAC-12.pdf

REMBRANDT - The REMote Beam instRumentation And Network Diagnosis Tool

Abstract

Similar works

Full text

Available Versions

GSI Repository