Experimental Physics and Industrial Control System
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Dirk,
if you want have a look on the HyperArchiver development status please
go here
http://www.lnl.infn.it/~epics/joomla/archiver.html
Loris, who has develop the java Archiver interface to Hypertable is
closing his job with us and looking for a term position...
Regards
-Mauro
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Mauro Giacchini
Istituto Nazionale di Fisica Nucleare - Laboratori Nazionali di Legnaro
V.le dellâUniversita', 2
35020 LEGNARO (PD) â ITALY
Tel. +39.049.8068558
Fax. +39.049.641925
EPICS _at_ LNL http://www.lnl.infn.it/~epics/
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
On 9/28/2010 4:40 PM, Ralph Lange wrote:
Dirk,
James Rowland from Diamond recently did a poll and has the most
current list of archiving solutions that are used with EPICS. I think
he will talk about it at the upcoming EPICS Collaboration Meeting in
two weeks.
My first order answer would be:
There's the Channel Archiver: old, stable, fast, very widely used, but
not based on a RDB.
There are several other archiving solutions, some of which use a RDB
for storage, others don't. Different ages, different languages,
different file formats or RDB systems for storage. Their common
feature: they are all used at one lab only, two labs maximum.
CSS databrowser support is available for the Channel Archiver, and for
the Oracle-based archiver at SNS. (The latter might not be part of the
DESY CSS.) There is experimental support for HyperArchiver (Channel
Archiver writing into Hypertable).
While RDB-based archiving solutions have a tendency to be slower (as
well in writing an archive as retrieving from it), I don't see an
issue here for your system (unless your 10K channels are updating
every second or faster).
Hope this helps,
Ralph
On 28.09.2010 10:23, Dirk Martin wrote:
Hallo,
at the S-DANILAC of the TU Darmstadt we're using EPICS to control power
supplies for example. Since it is necessary to observe ~10000 PVs for a
period of nearly four weeks, we decided to introduce an archiving system
based upon a relational database. We're using CSS (from the DESY) and
would like to plot the archived data in the Data Browser.
That is why I ask you, whether you could tell me, which archiving system
is wide-spreaded enough and best for this job.
Thanks in advance and best regards
Dirk Martin
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- Re: archiving system Ralph Lange
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