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TY - CONF AU - Strangolino, G. AU - Lonza, M. AU - Pivetta, L. ED - Corvetti, Lou ED - Riches, Kathleen ED - Schaa, Volker RW TI - Time Travel Made Possible at FERMI by the Time-Machine Application J2 - Proc. of ICALEPCS2015, Melbourne, Australia, 17-23 October 2015 C1 - Melbourne, Australia T2 - International Conference on Accelerator and Large Experimental Physics Control Systems T3 - 15 LA - english AB - The TANGO archiving system HDB++ continuously stores data over time into the historical database. The new time-machine application, a specialization of the extensively used save/restore framework, allows bringing back sets of control system variables to their values at a precise date and time in the past. Given the desired time stamp t0 and a set of TANGO attributes, the values recorded at the most recent date and time preceding or equaling t0 are fetched from the historical database. The user can examine the list of variables with their values before performing a full or partial restoration of the set. The time-machine seamlessly integrates with the well known save/restore application, sharing many of its characteristics and functionalities, such as the matrix-based subset selection, the live difference view and the simple and effective user interface. PB - JACoW CP - Geneva, Switzerland SP - 1059 EP - 1062 KW - database KW - TANGO KW - interface KW - controls KW - framework DA - 2015/12 PY - 2015 SN - 978-3-95450-148-9 DO - 10.18429/JACoW-ICALEPCS2015-WEPGF152 UR - http://jacow.org/icalepcs2015/papers/wepgf152.pdf ER -