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[McIDAS #HZP-657281]: Moving McIDAS-XCD server

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  • Subject: [McIDAS #HZP-657281]: Moving McIDAS-XCD server
  • Date: Fri, 07 Sep 2007 12:38:30 -0600
Hi Hsie,

re: ingesting NGRID on blizzard and relaying it to stratus

> I never request NGRID from anyone.  My problem for the main LDM server
> (rainbow.al.noaa.gov) is the I/O bottleneck.  I do not know how much I/O
> will add to the LDM server from NGRID feed?

Here is a listing that contains volumes of various feeds available in the
IDD:

Data Volume Summary for idd.unidata.ucar.edu

Maximum hourly volume   5880.553 M bytes/hour
Average hourly volume   4203.884 M bytes/hour

Average products per hour     194633 prods/hour

Feed                           Average             Maximum     Products
                     (M byte/hour)            (M byte/hour)   number/hour
CONDUIT                2349.260    [ 55.883%]     3721.929    56166.114
NEXRAD2                 911.864    [ 21.691%]     1149.017    58948.523
NGRID                   306.645    [  7.294%]      734.995    10616.909
HDS                     194.650    [  4.630%]      421.364    18627.341
NNEXRAD                 175.419    [  4.173%]      208.484    23738.000
NIMAGE                  154.132    [  3.666%]      327.339      168.864
FNEXRAD                  62.948    [  1.497%]       85.080       70.773
UNIWISC                  20.525    [  0.488%]       31.961       23.750
IDS|DDPLUS               18.816    [  0.448%]       22.790    26094.136
DIFAX                     5.512    [  0.131%]       21.983        6.841
GEM                       2.023    [  0.048%]       22.248      139.636
FSL2                      1.951    [  0.046%]        2.086       22.182
NLDN                      0.142    [  0.003%]        0.416        9.659

As you can see, the NOAAPORT NGRID feed, which is composed of higher resolution
model data mostly in GRIB2 format, has twice the volume of the HDS feed on
average.  Another way of looking at the NGRID volume is that it is roughly
75% of the volume of the combination of the NNEXRAD, NIMAGE, FNEXRAD, UNIWISC,
IDS|DDPLUS, DIFAX, GEM, FSL2, and NLDN datasetreams.  So, the addition of
NGRID to the mix would be significant if you are already having bandwidth
problems on al.noaa.gov machines.

Ingesting and processing of the NGRID feed products is, of course, entirely
up to you.  I only asked about getting the feed on stratus if you were
already ingesting it on another of the machines in your control.

> Hsie
> > Tom
> > ****************************************************************************
> > Unidata User Support                                    UCAR Unidata Program
> > (303) 497-8642                                                 P.O. Box 3000
> > address@hidden                                   Boulder, CO 80307
> > ----------------------------------------------------------------------------
> > Unidata HomePage                       http://www.unidata.ucar.edu
> > ****************************************************************************
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: HZP-657281
> > Department: Support McIDAS
> > Priority: Normal
> > Status: Closed
> >
> 
> 
> --
> ----------------------------------------------------------------
> 
> "This contents of this message are mine personally and
> do not reflect any position of the Government of NOAA or
> University of Colorado"
> 
> Eirh-Yu Hsie
> 
> Cooperative Institute for Research in Environmental Sciences (CIRES)
> University of Colorado
> Boulder, CO 80309-0216
> 
> Chemical Science Division (CSD)
> Earth System Research Laboratory (ESRL)
> NOAA
> 325 Broadway, R/CSD4
> Boulder, CO  80305-3328
> 
> e-mail: address@hidden
> address@hidden
> voice:  303-497-3275
> fax:    303-497-5373
> 
> 

Cheers,

Tom
****************************************************************************
Unidata User Support                                    UCAR Unidata Program
(303) 497-8642                                                 P.O. Box 3000
address@hidden                                   Boulder, CO 80307
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Unidata HomePage                       http://www.unidata.ucar.edu
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Ticket Details
===================
Ticket ID: HZP-657281
Department: Support McIDAS
Priority: Normal
Status: Closed