Yes, and since Corey brought this up, please send me these suggestions for
our brainstorming session this week (by 4/9 evening!). We are looking to
bring the "Top 10 S.C.A.R.s" to the International Meeting this year.
Sincerely,
Diane Harris
Harris Automation Services, Inc
President Gulf Coast Users Group
http://www.HarrisAS.com
----Original Message Follows----
From: Corey R Clingo <[EMAIL PROTECTED]>
Reply-To: "Foxboro DCS Mail List" <[EMAIL PROTECTED]>
To: Foxboro DCS Mail List <[EMAIL PROTECTED]>
Subject: RE: Failed SaveAll
Date: Fri, 6 Apr 2001 12:54:27 -0500
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Or, we could design the system in the first place to allow save-alls while
the
configurator is running, and maybe prevent a save in the configurator to a
compound that is currently being saved. Or better yet, do away with all
these
different database snapshots (save-alls, checkpoints, ICC workfiles) and
replace
them with one checkpoint used to load the controller, from which the
configuration can be completely reconstituted, and which can be saved while
configuration is in progess (this is the case with at least one of Foxboro's
major competitors' systems).
Oh well, guess I'll add this to my list of rants to go over at the GCUG next
week....
Corey Clingo
Sr. Engineer
BASF Corporation
"Deen, Ron" <[EMAIL PROTECTED]> on 04/06/2001 02:44:13 AM
Please respond to Foxboro DCS Mail List
<[EMAIL PROTECTED]>
To: Foxboro DCS Mail List <Foxboro
cc:
Subject: RE: Failed SaveAll
>>> 3. I have long been an anti-proponent for automated save-alls and even
checkpoints. Your quandry is one of the best examples I can give to avoid
automating something so important as your control database backups.
<<<
Sorry, but I fail to see what is so great about this example:
The system responded with: Database locked, Override yes/no.
As I believe, answering NO would have prevented this issue from occuring at
all!
I have seen "smart engineers" screw up a control databases in broad
daylight, because they figured the "locked database" message, was a mistake
from the Foxboro system, which is usually not the case, and ALWAYS should be
a warning to the engineer that he/she must investigate.
I would suggest an initialize/load_all. And use the "cassandra provided"
save_all script (that will maintain at least 10 backups) or something
similar from your precious save_alls.
I would also suggest informing your staff about the archiving utilities on
the system and the impact they may have on real life engineering!
Making important tasks in the system (like backing up control databases)
"low thresshold functions", because they automated, should be considered a
to big value just to cancel all of this because someone has made a mistake.
Regards
Ron Deen
Foxboro Nederland N.V.
Baarnschedijk 10
3741 LS Baarn
The Netherlands
Phone: +31(0)35-5484174
Fax: +31(0)35-5484175
Web: www.foxboro.com
e-mail: [EMAIL PROTECTED]
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