EPICS Home Page at Jefferson Lab
Experimental Physics and Industrial Control System (EPICS) is a set of
software tools and applications cooperatively developed by
Los Alamos National Laboratory (LANL),
Argonne
National Laboratory (ANL),
Thomas Jefferson National Accelerator
Facility (formerly CEBAF),
Lawrence Berkeley Laboratory (LBL),
Brookhaven National Laboratory (BNL), Deutsches
Elektronen-Synchrotron (DESY) and many others. For more
information about EPICS, visit the epics
integration site.
The EPICS Control System at Jefferson Lab
<>The accelerator control system is maintained by the controls
software group, part of the operations department.
>
<>The controls software group has
developed an EPICS archiver, called CZAR, which advances the state of
the art in archived data acqusition and storage for EPICS. The
archive engine runs on a Linux-based system with dual 2.4 Xeon
processors, 12 GB of memory and 1.7 TB of raid disk space. It is
currently used to monitor more than 30,000 channels, and consumes
roughly 30% of one of the CPUs. The 1.7 TB of disk space enables users
to have ready access to the last 2 years of data, with more available
on off-line storage if needed. Users are able to retrieve from the
archive any channel's data in the 2 year time range, with retrieval
time taking approximately 1 second for each day's worth of data
returned (which can be as much as 86,000 timestamp/value pairs). >
Modified on November 16, 2004; Maintained by Matt Bickley