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Data outages from NWS... (fwd)


===============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
address@hidden             WWW: http://www.unidata.ucar.edu/
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---------- Forwarded message ----------
Date: Wed, 11 Aug 1999 08:55:49 -0500 (CDT)
From: Gilbert Sebenste <address@hidden>
To: address@hidden
Subject: Data outages from NWS...

Although we are in one right now, or coming out of one, actually...
just thought I'd pass it along, if you are wondering why data is slow or
missing over the next few days.


---------- Forwarded message ----------
Date: Wed, 11 Aug 1999 07:12:38 -0500
From: LDM Data Software Account
Subject: NWS NOAAport message


182 
NOUS72 KNCF 111148
ADMNCF

SUBJECT:  DATA INTERRUPTIONS DURING AWIPS NCF UPGRADE-UPDATE

PHASE ONE OF THE AWIPS NCF UPGRADE WAS SUCCESSFULLY COMPLETED YESTERDAY.  
THE NEW NCF DATA SERVERS (DS) HAVE BEEN PUT IN PLACE AND CABLED INTO THE
EXISTING SYSTEM.  ONE SHORT INTERRUPTION OCCURRED ON OUR MESSAGE HANDLING
SYSTEM WHEN AN EXISTING DS UNEXPECTLY WENT OFF-LINE.  AFFECTED SITES WERE
NOTIFIED AND SERVICE WAS QUICKLY RESTORED.

ACTIVITY FOR TODAY, WEDNESDAY, 11 AUG 99:
AWIPS SATELLITE BROADCAST NETWORK (SBN) UPLINKS WILL BE TRANSFERRED FROM
EXISTING NCF PRIMARY AND BACKUP DS'S TO THE NEW DS'S.  THIS SECOND PHASE
WILL CAUSE AN INTERRUPTION OF APPROXIMATELY 45 MINUTES ON ALL FOUR AWIPS
SBN UPLINK CHANNELS INCLUDING NWSTG, GOES-E, GOES-W, AND NON-GOES IMAGERY 
AND DCP CIRCUITS.  NWSTG DATA WILL BE QUEUED DURING THIS PROCESS, SO NONE
OF THIS DATA WILL BE LOST.  HOWEVER, NO QUEUING THE SATELLITE IMAGERY IS 
POSSIBLE, SO ANY OF THE GOES/NON-GOES PRODUCT IMAGERY SCHEDULED DURING
THIS OUTAGE WILL BE LOST.  THE SDM DOES NOT EXPECT TO GO INTO A CRITICAL
WEATHER MODE, SO NWS/OSO HAS AUTHORIZED THE UPGRADE WORK TO PROCEED TODAY.
THE CIRCUIT DOWN TIME IS NOW PLANNED TO OCCUR BETWEEN 11/1300Z AND 11/1430Z.

THURSDAY, 12 AUG 99:
THE THIRD PHASE IS TO UPGRADE SOFTWARE ON THE EXISTING NCF DS'S.  THIS
UPGRADE WILL INTERRUPT AWIPS MESSAGE HANDLING SYSTEM (MHS) TRAFFIC FROM
FIELD SITES THROUGH THE NCF FOR TWO 10-MINUTE PERIODS.  THIS WILL AFFECT
THE TIMELY DELIVERY OF AWIPS WAN TEXT MESSAGES FROM THE NCF TO THE NWSTG.
THESE INTERRUPTIONS WILL BE SPACED OVER A TWO-HOUR PERIOD.  SINCE BIS AND
CRP ARE THE ONLY SITES OPERATING IN THE COMMISSIONING MODE, THE NCF WILL
COORDINATE DOWN TIMES DIRECTLY WITH THESE SITES.  THESE OUTAGES ARE PLANNED
TO OCCUR BETWEEN 12/1300Z AND 12/1500Z.

WE WILL TRANSMIT A FINAL ADVISORY 15 MINUTES BEFORE THE START OF TODAY'S 
DATA INTERRUPTION, AND A FOLLOW-UP MESSAGE WHEN TODAY'S WORK IS COMPLETE.
PLEASE SET TEXT WORKSTATION ALARMS/ALERTS FOR THE FOLLOWING PRODUCTS:
NCFADMNCF
NCFADANCF

(Gilbert's note: That's NOUS7(12) KNCF).

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Gilbert Sebenste                                                     ********
Internet: address@hidden    (My opinions only!)                     ******
Staff Meteorologist, Northern Illinois University                      ****
Work phone: 815-753-5492                                                ***
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