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EVLA M&C CDR EVLA Monitor Data Archive System John Benson, Chunai Cai NRAO Dec 6, 2006.

Published byKenneth Taylor Modified over 8 years ago

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Presentation on theme: "EVLA M&C CDR EVLA Monitor Data Archive System John Benson, Chunai Cai NRAO Dec 6, 2006."— Presentation transcript:

1 EVLA M&C CDR EVLA Monitor Data Archive System John Benson, Chunai Cai NRAO Dec 6, 2006

2 Dec 5 - 6, 2006EVLA M&C Transition S/W CDRJohn Benson 2 Monitor Data Archive System

3 Dec 5 - 6, 2006EVLA M&C Transition S/W CDRJohn Benson 3 Monitor Data System Goals Ingest and store large amounts of monitor data –EVLA telescopes, WIDAR correlator –Other site modules (+AOC) Archived monitor data easily accessible –Accessible in real-time with web-based tools –Provide flexible query tools –Provide user friendly ‘what’s in the archive’ tool –Allow a variety of data output formats

4 Dec 5 - 6, 2006EVLA M&C Transition S/W CDRJohn Benson 4 Current Monitor Archive System Monitor Data Records –Slot_Id, Device Name, Mon Point Name, Time Stamp, Value –About 80 byte records -> Oracle DB tables at EVLA site –Currently 6 EVLA, 20 VLA ants, control room, benches –127 devices, mon points : 300 VLA, 600 EVLA Monitor Archive Data Rate –11.5 M records/day -> 1 GB/day, 10 kB/sec –Typical sample rate 1 per minute, some 1 per sec. –Expect 2000 mon pts per EVLA ant. –EVLA monitor data rate > 50 – 100 M recs/day (1 sample/min)

5 Dec 5 - 6, 2006EVLA M&C Transition S/W CDRJohn Benson 5 Current Monitor Archive System

6 Dec 5 - 6, 2006EVLA M&C Transition S/W CDRJohn Benson 6 Current Monitor Archive System

7 Dec 5 - 6, 2006EVLA M&C Transition S/W CDRJohn Benson 7 Upgrade Monitor Data Archive Enhance user interface – Chunai –New web-based tool providing cascading menus of slot_ids, devices, and monitor points in the archive within a user specified time range. –Query returns monitor points from several antennas –Query can return large numbers of mpts efficiently (10000’s) Reduce ingest data rate –Reset default sample rates on many mpts to 10-15 minutes –Auto reset to back default rate Increase Oracle storage efficiency

8 Dec 5 - 6, 2006EVLA M&C Transition S/W CDRJohn Benson 8 Upgrade Monitor Data Archive

9 Dec 5 - 6, 2006EVLA M&C Transition S/W CDRJohn Benson 9 New Interface Tool New monitor data archive interface : http://mctest:8080/aux_mon/main.faces

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