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---------- Forwarded Message ---------- ------------------------------------------ On Wednesday, 4/4, the Reflectivity (R), Product 19 @ 1.45/1.5 deg elev (N1Rxxx) radar product was added to the SBN/NOAAPORT. The plan is to add 1 radar product per weekday. As each radar product is added to the SBN/NOAAPORT, NWS Headquarters will monitor the performance impact on the receiving AWIPS systems. The ds1 and as1 servers are the systems that may be most impacted by these additional radar products. While NWS Headquarters is monitoring the performance impact, the additional radar products will only be transmitted on the SBN/NOAAPORT from approximately 9 a.m. EDT to 5 p.m. EDT. The schedule for adding the 10 radar products to NOAAPORT is as follows: Date Radar Product 4/4 Reflectivity (R), Product 19 @ 1.45/1.5 deg elev (N1Rxxx) 4/5 Reflectivity (R), Product 19 @ 2.4/2.5 deg elev (N2Rxxx) 4/6 Reflectivity (R), Product 19 @ 3.35/3.5 deg elev (N3Rxxx) 4/9 Reflectivity (R), Product 20 @ 0.5 deg elev (N0Zxxx) 4/10 Velocity (V), Product 27 @ 1.45/1.5 deg elev (N1Vxxx) 4/11 Echo Tops (ET), Product 41 (NETxxx) 4/12 Velocity Azimuth Display (VAD) Wind Profile, Product 48 (VWDxxx) 4/13 Storm Rel Mean Rad Vel (SRM), Product 56 @ 1.45 deg elev (N1Sxxx) 4/16 Storm Rel Mean Rad Vel (SRM), Product 56 @ 2.4 deg elev (N2Sxxx) 4/17 One Hour Precipitation (OHP), Product 78 (N1Pxxx) Ken Hager wrote:
Awipsinfo List -------------- This is a multi-part message in MIME format. ---------------------------------------------------------------- Beginning on Wednesday, April 4th, the NCF will begin sending additional radar products over the SBN. Currently, there are eight products being distributed via the SBN. The following additional ten products will be added: Reflectivity (R), Product 19 @ 1.45/1.5 deg elev (N1Rxxx) Reflectivity (R), Product 19 @ 2.4/2.5 deg elev (N2Rxxx) Reflectivity (R), Product 19 @ 3.35/3.5 deg elev (N3Rxxx) Reflectivity (R), Product 20 @ 0.5 deg elev (N0Zxxx) Velocity (V), Product 27 @ 1.45/1.5 deg elev (N1Vxxx) Echo Tops (ET), Product 41 (NETxxx) Velocity Azimuth Display (VAD) Wind Profile, Product 48 (VWDxxx) Storm Rel Mean Rad Vel (SRM), Product 56 @ 1.45 deg elev (N1Sxxx) Storm Rel Mean Rad Vel (SRM), Product 56 @ 2.4 deg elev (N2Sxxx) One Hour Precipitation (OHP), Product 78 (N1Pxxx) The new products will be phased in over time to minimize the potential for performance problems. On the morning of April 4th, the SST will distribute a revised version of prodList.txt to all sites which will identify the first of the ten products listed above (Reflectivity Product @ 1.45/1.5 deg elev) for SBN distribution. RadarStorage will then be stopped and restarted to activate the new file. That evening, the SST will restore the "baseline" of version of prodList.txt. The next morning, the SST will again distribute a revised version of prodList.txt, this time with the first two products listed above set up for SBN distribution, and will replace the baseline again at night. Each weekday, one additional new product will be added to prodList.txt so, assuming there are no problems, the entire set of new products will have been added by the morning of April 17th. During this phase-in period, we will be monitoring field sites to make sure the addition of these new products does not result in system performance degradation. If we determine that there is an impact, then the addition of new products will be suspended until the problem can be rectified. We highly recommend that all sites closely monitor their system performance during this period and report any impacts to the NCF. The additional products will result in increased processing activity on both the as1 and ds1 servers, so you may see the CPU utilization increase. The notification server on as1 will also be affected and you may start to see an impact on the updating of green times. If there are going to be performance impacts, the sites which receive data from a large number of radars will be the first to be affected so National Centers and RFCs in particular should be aware of how their systems are performing. We will continue to post updates to the awipsinfo list as the phase-in goes along to keep you all advised on how it is progressing.
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