Data Aging - Euthanasia Bob Dalesio

Data Management - Channel Data Allow recovery of unused data space Allow selective delete of channels Allow selective delete of time ranges Allow winnowing of data –by dates –keeping statistics –preserving only every Nth sample Provide operator supplied notes for data

Data Management - Set Data Allow selective delete of channels Allow selective delete of time ranges Allow editing of values Provide operator supplied notes for data

Conclusion Bob Dalesio

Status of Prototyping Efforts Channel Based Frequency archiving supporting up to 10K samples per second on a SPARC 10 available for beta test Archive viewer for frequency data available for beta test - plot of 4 channels with 1K samples each in under 4 seconds Data management only recovers unused disk space New requirements and feedback on prototypes needed from users Integrated with XARR data viewer from JLab

Status of Prototyping Effort Set Based Save set archive engine saving up to 5K samples (synchronous from a 10 Hz set of channels) 5K samples take 2 seconds to collect and write to disk Access for viewer and creation of restore and reboot files Not Yet Implemented

Development Efforts Data taking engines being developed at LANL, graphical engine for UNIX developed at JLAB Archive record operational at DESY - buffer server? Prototypes of the frequency archiver are running at JLAB PC based archive viewers being prototyped at LANL Client/server access to the archive data being developed at JLAB Distributed data taking viewer being developed at JLAB