On Fri, 24 Dec 2010, Tim.D.Crum wrote:
Sorry, this got put into my queue by accident. In Re: Level 2 outage on
December 23:
All,
I just now opened my first emails related to the "outage." I notice no
announcements from the TOC during the period.
At one point, all Level 2 data was about 40 minutes behind, but for
at least 3 hours, all L2 radar products were at least 10 minutes behind.
The "outage" came about as several people, myself included, had their
LDM's reject data older than 10 minutes.
Does anyone have stats on the pre-architecture vs post-architecture Level II
reliability and latencies? How about the times of the outage?
Time of the data delays were from roughly 18:30Z through 21:38Z, although
there seemed to be no data at time from 15:30Z-17Z. 18:30 is when I first
noticed it; it may have (and probably did) go back earlier than that.
What made things a lot more difficult yesterday was that UNIDATA's rtstats
were down, so I couldn't tell if Purdue, Max Gigapop or OU was the issue.
Knowing OU's power was down, I couldn't tell which one was having the
congestion. All I know is that I failed over to UIUC, which feeds directly
from Purdue, and they had delays. I fed from UNIDATA, and they feed from
all 3 sites, and they had the same delay. So it was affecting Purdue and
the Max Gigapop site, and it still may be doing that. I have no way of
knowing.
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Gilbert Sebenste ********
(My opinions only!) ******
Staff Meteorologist, Northern Illinois University ****
E-mail: sebenste@xxxxxxxxxxxxxxxxxxxxx ***
web: http://weather.admin.niu.edu **
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