20020612: Linux-ADMIN NOTICE NOUS72 KNCF (fwd)

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985
NOUS72 KNCF 121110
ADMNCF
PLEASE PASS TO MIC, ESA, HIC, SOO
OVER THE NEXT FEW WEEKS, THE NCF WILL BEGIN THE TRANSITION TO NEW LINUX-BASED
SATELLITE BROADCAST NETWORK UPLINK SERVERS.  THE NEW DEVICES WILL BRING GREATER
RELIABILITY TO AWIPS SBN UPLINK AND WILL SERVE AS THE FIRST OF SEVERAL STEPS
NEEDED TO IMPROVE PRODUCT DELIVERY TIME.  THE TIMELINE FOR THIS UPGRADE IS AS
FOLLOWS: JUNE 11NEW LINUX SERVERS POWERED UP AND CONNECTED AT ANCF, BUT UPLINK
STILL ACCOMPLISHED BY HP-UX  SERVERS. JUNE 124th CHANNEL UPLINK (NON-GOES DCP)
MOVED TO NEW LINUX SERVER.
JUNE 13GOES-W CHANNEL MOVED TO NEW LINUX SERVER.
JUNE 17REMAINING CHANNELS MOVED TO NEW LINUX SERVERS.
MOVING CHANNELS FROM THE HP-UX SERVERS TO THE NEW LINUX SERVERS SHOULD
NOT CAUSE DATA LOSS OR INTERRUPTION OF UPLINK FOR MORE THAN 5 MINUTES FOR
EACH CHANNEL TRANSITION.
THERE WILL BE A TOTAL OF FOUR LINUX UPLINK SERVERS.  EACH SERVER WILL UPLINK
ONE CHANNEL.  SHOULD ONE SERVER ENCOUNTER A PROBLEM, THE CHANNEL
BEING UPLINKED FROM THAT SERVER WILL BE MOVED TO ANOTHER.  IF IT IS NOT
POSSIBLE TO SPARE TO ANOTHER LINUX UPLINK SERVER, UPLINK WILL BE RETURNED TO
AN HP-UX SERVER.  TWO EXISTING HP-UX SERVERS WILL REMAIN IN THE NCF UNTIL
ABOUT JUNE 27.
NCF WILL BE MONITORING THIS UPGRADE CLOSELY AND WILL INFORM SITES IF ANY
PROBLEMS ARE ENCOUNTERED.


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