------------------------------------------------------------ Date: Mon Aug 20 08:02:31 2001, Shift: 00:00-08:00 Supervisor: sjs, with: ah Log book#7 pages 138 - 139 Shift Summary: ------------------------------------------------------------ It was a dark and stormy evening when, suddenly, the lights flickered.... Lost: Magnet control, tsir, sc, fb3. HV tripped for BB, H1, H2, TOFW. RHIC went into a "severe weather shutdown" mode. The current estimate is for several more hours before operations resume. No beam during shift. Found on-line documentation on how to reset sc. Good work whoever wrote this! Reseting sc also cleared tsir error. Called MCR to reset magnet control computer. Once reset, system recovered with all currents at 0 and status in Stby-fault state. Still haven't figured out how to get magnets running--looks like we might have to get help for this... fb3 error took somewhat longer to clear. After failing to find any documentation on how to handle this situation, AH scanned the previous shift reports for mention of fb3. Fortunately, a reference was found that directed us to p 8 of Log 7, where the DAQ reboot procedure is discussed. After several tries, this was found to work. A short pulser test run was taken to test the daq using the fb3 partition. Current situation: All systems look operational, but... Need to bring up fields in magnets. Need to set HV back to correct values. Should have plenty of time...RHIC operations still trying to recover systems that they lost... (and, from a mid-westerners perspective, it wasn't even that severe a storm...) ------------------------------------------------------------
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