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[IDD #JHR-989766]: Assistance in becoming a Unidata user

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [IDD #JHR-989766]: Assistance in becoming a Unidata user
  • Date: Wed, 13 Oct 2010 10:53:53 -0600
Hi Cedrick,

re:
> It looks as if our available amount of storage space will be changing
> due to utilizing a system with a public ip address. Are you able to tell
> me the average amount of data (GB,MB etc.) we will be receiving on any
> given day.

How much disk space you will need will depend on the range of data you get
and how long you want to keep it online.  The volume of data in the various
feeds available in the IDD can be seen from the following link from our
real time stats pages:

You can view volumes of the feeds at:

http://www.unidata.ucar.edu/cgi-bin/rtstats/siteindex?idd.unidata.ucar.edu

Click on the Cumulative Volume Summary link at the bottom of the page and
after some amount of time (depends on how loaded our server is), you will
get a listing of data volumes in IDD feeds.  Here is one example:

Data Volume Summary for idd.unidata.ucar.edu

Maximum hourly volume  13901.700 M bytes/hour
Average hourly volume   6574.972 M bytes/hour

Average products per hour     236077 prods/hour

Feed                           Average             Maximum     Products
                     (M byte/hour)            (M byte/hour)   number/hour
CONDUIT                2447.936    [ 37.231%]     7196.958    64122.143
NEXRAD2                1832.425    [ 27.870%]     2635.038    52056.619
NEXRAD3                 745.404    [ 11.337%]      999.243    47353.476
NGRID                   736.530    [ 11.202%]     1609.071    16017.976
HDS                     259.845    [  3.952%]      412.853    18168.905
FNMOC                   232.120    [  3.530%]     1459.823     2036.262
NIMAGE                  128.951    [  1.961%]      233.543      173.357
FNEXRAD                  89.196    [  1.357%]      108.216       72.333
IDS|DDPLUS               39.188    [  0.596%]       50.582    35204.119
EXP                      30.578    [  0.465%]       66.133      363.500
UNIWISC                  22.777    [  0.346%]       30.270       27.024
DIFAX                     3.343    [  0.051%]       12.119        4.929
GEM                       3.216    [  0.049%]       39.369      220.619
LIGHTNING                 1.744    [  0.027%]        2.972      233.238
FSL2                      1.721    [  0.026%]        1.972       22.429

You should check with Jennifer to see what datastreams will be wanted
and how long it will be desired to keep the data online and then use the
information above as an estimate for how much disk should be made
available.  My initial guess that you would want to have at least
10-100 GB of data at any time, but this is just a guess.

Cheers,

Tom
--
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Ticket Details
===================
Ticket ID: JHR-989766
Department: Support IDD
Priority: Normal
Status: Closed