All,
The message forwarded below alerts us to a test of the AWIPS Network
Control Facility (NCF) backup servers.
NB:
The last time that the backup facility (back on October 7, 2009) was
tested, some bad GRIB2 products caused Unidata NOAAPort ingest code to
exit with errors, and that would cause the LDM running on the ingest
machines to also exit. The problem was that several GRIB2 messages were
run together into a single SBN product, and our code was unable to handle
the bad data.
Hopefully, this time there no bad products will be introduced into
the SBN. We will monitor ingest closely during the test of the backup
servers, and work with NOAA if any problems arise.
Cheers,
Tom
------- Forwarded Message
Date: Wed, 03 Mar 2010 12:58:54 -0700
To: nws-changes@xxxxxxxxxxxxxxxx
Subject: [nws-changes] 20100303: network backup
NOXX10 KWBC 031957
DATA MGT MESSAGE 03-10.01
TO NOAAPORT USERS
FROM RTH WASHINGTON DATA MANAGEMENT
SUBJECT BACKUP NETWORK CONTROL FACILITY /NCF/ ACTIVATION
EFFECTIVE DATE 1515 UTC ON MONDAY MARCH 15
THERE WILL BE AN OPERATIONAL TEST OF THE AWIPS
NETWORK CONTROL FACILITY (NCF) BACKUP SERVERS.
NCF SERVER OPERATIONS WILL BE SWITCHED FROM THE
PRIMARY AWIPS NCF (ANCF) IN SILVER SPRING, MD TO THE
BACKUP NCF (BNCF) AT FAIRMONT, WV. THE SWITCH IS
SCHEDULED FOR MONDAY, 15 MARCH AT 1515 UTC.
OPERATIONS WILL BE SWITCHED BACK TO THE PRIMARY
NCF ON THURSDAY, 18 MARCH AT 1415 UTC. THE SWITCH
WILL NOT BE DONE ON A CRITICAL WEATHER DAY, OR
IF THERE ARE OTHER SIGNIFICANT OPERATIONAL ISSUES
WARRANTING POSTPONEMENT.
ALL ANCF MESSAGE DISTRIBUTION WILL BE REPOINTED
TO THE BNCF. THE SWITCH TO THE BNCF WILL BEGIN
AT 1515 UTC AND WILL TAKE ABOUT 20 MINUTES. DATA
WILL QUEUE WHILE THE SWITCH IS IN PROGRESS AND
WILL BE SENT ONCE THE SWITCH IS COMPLETE. THIS
AND NATIONAL CENTERS ON THE AWIPS NETWORK
INCLUDING RADAR DATA.
REPOINTING OF OPERATIONS BACK TO THE ANCF WILL
ALSO TAKE ABOUT 20 MINUTES DURING WHICH DATA
WILL BE QUEUED. QUEUED DATA WILL BE SENT WHEN
THE REPOINTING IS COMPLETE.
NCF
THIS INFORMATION IS ALSO POSTED ON THE NWS DATA MANAGEMENT
CHANGE NOTICES WEB PAGE. THE URL IS LISTED BELOW.
HTTP/COLON///WWW.NWS.NOAA.GOV/DATAMGMT/NOTICES.SHTML
DATA MANAGEMENT
TELECOMMUNICATION OPERATIONS CENTER
RTH WASHINGTON SENDS
NNNN
------- End of Forwarded Message
