AUTOMATED MANAGEMENT OF LIBERA SPARK MODULE IOCs IN SPEAR3

Conference ·

DOI:https://doi.org/10.18429/JACoW-IBIC2020-TUPP12· OSTI ID:1969388

Toufexis, Filippos ^[1]

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1. SLAC National Accelerator Lab., Menlo Park, CA (United States)

We are actively upgrading BPM processors in the SPEAR3 accelerator complex as several of the existing sys- tems are reaching end-of-life. To consolidate the resources required for development and maintenance we have evalu- ated and installed several processors from the Libera SPARK hardware series. We found that two common deployment methods typically used with these modules, micro-SD card and network boot, are either hard to maintain or lack flexibil- ity. Instead we have developed an automated method based on a network boot scheme where an external EPICS soft IOC manages the assignment of specific SPARK modules to physical BPMs in the accelerator. Each module queries the soft IOC at boot time to determine which BPM it is assigned to and then starts its IOC with the appropriate BPM prefix for the PV names. This deployment method allows for quick, seamless swapping of SPARK modules by machine opera- tors or physicists. It addition, it allows us to bring additional modules online for testing, or to move modules to different locations with a different PV prefix for the new location. This method is applicable to other EPICS-enabled devices where the device hardware also hosts an IOC.

• Research Organization: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Engineering & Technology
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 1969388
• Report Number(s): SLAC-PUB-17564
• Country of Publication: United States
• Language: English