Fognet's Field Guide to OpenView Network Node Manager, 2nd Ed.
This book, published in 2006 and 2008, was the most popular title on HP OpenView for 5 years. Even though NNM version 7 is no longer supported by HP, many shops still run this legacy product.

Now! Click here to download the ebook for FREE!

V3 Mindmap - Developed by Fognet, 2009: (Java Applet)

Note: This applet will not run in Chrome.
In firefox, Internet Explorer, and other browsers, the applet will run if allowed.

The Medium is the Message: Improving Message Handling in HP Operations (PDF)
(891k, 2010 HP Software Universe, Washington, DC, 2 Hrs)

NNM 8i: Let's get down to brass tacks, how much for the ape? (PDF)
(2,033k, 2008 HP Software Universe, Las Vegas, 1.5 Hrs)

Here is an example of a Syllaus for a course Fognet developed that was directed at operators who use the Java-based GUI of Operations manager for Windows. This is a good example of how Fognet can take a standard HP course and redevelop it to fit the customer's very specific needs:

VPO, SNMP, and Crawfish Ettouffee (PDF)
(740k, 2001 OpenView Forum, New Orleans, 1 hr)

Intellectually-Challenged Plug-ins: Improving IT/Operations' Templates for UNIX System Administration (PDF)
(795k,2000 HP Software Forum, Orlando, 1 hr)

Integrated SNMP management with HP OpenView IT/Operations and Network Node Manager (Presentation - PDF) (369k, 1999)  (White Paper - DOC)    (1999)

A Cow of a Different Color - Advanced Status with OpenView NNM (PDF)
(2,920k, 2006 HP Technology Forum, Houston, 4 Hrs)

Peeling the Oranges (and Reds and Greens) (PDF)
(939k, 2006 HP Software Forum, Miami, 2.5 Hrs)

The Rocky Road to Advanced Status in NNM (PDF)
(1003k, 2005 HP Software Forum, Denver, 2 hrs)

NNM Status: Soup to Nuts (PDF)
(911k, 2004 HP Software Forum, Montreal, 1 hr)

The Ups and Downs of NNM Status Polling (PDF)
(440k, 2003 HP Software Forum, Chicago, 1 Hr)

The Low Down on a Node Down (PDF)
(360k, 2002 HP Software Forum, Seatle, 1 hr)

White Paper: The Low Down on a Node Down: Improving on NNM's Default Status Event Configuration Settings (HTML)   (DOC)   (2002)

NNM Status Polling: The Big Uneasy (PDF)
(295k, 2001 HP Software Forum, New Orleans, 1 hr)

Article: High Availability Choices for OpenView (HTML)   (2004)

White Paper:OVO on Solaris Server Footprint Reduction (PDF)  (2003)

Click for USA 4-color, BMP, 837K Click for USA 4-color, JPG, 37K Click for USA Relief, JPG, 126K

Click for World, White & Grey Shadow, GIF, 25K Click for World Political 4-color, Miller Projection JPG, 103K Click for World 4-Color Timezones, JPG, 78K
Click for World 2-Color Robinson Projection, JPG, 353K Click for World 3-Color Robinson Projection, JPG, 189K

Some of these I yanked from other sites, some I've added to along the way.

Fog is not simply air that is over saturated with water vapor, It is a collection of liquid water droplets or ice crystals suspended in the air at or near the Earth's surface. Fog is formed primarily via the heterogeneous nucleation process, though I am unclear whether fog can sometimes be formed by homegeneous nucleation as well.


Homogeneous nucleation requires a) that relative humidity exceed 100% (typically it must exceed it by several hundred percent) and b) the presence of condensation nuclei that range in size from 0.2 to 0.002 microns.

Air in which the relative humity exceeds 100% is called supersaturated. I know the feeling.

Condensation nuclei are particles in the air like dust, pollen, smoke, or smog. in other words, any aerosol, which is a solid suspended in air.


Heterogeneous Nucleation differs from homogeneous nucleation in that: a) the nucleus of formation is larger, and b) the air need not be supersaturated. This process is more commonly associated with cloud formation, so much so that the nuclei are referred to as Cloud condenasation nuclei (CCN). They average about 1 micron is size and there are two types:

HYGROSCOPIC - water-seeking

HYDROPHOBIC - water-repelling

Most particles are released into the atmosphere near the ground, this is where largest concentrations of CCN are. There are generally more over land than over oceans.

Particles in the atmosphere can be sometimes be seen as "shafts of light". Actually, you are not seeing the particles themselves, but the scattering of the sun's rays by them. What I have a hard time figuring out when I look at these rays is that while they seem to be coming in at differing angles, they are in fact all parallel relative to each other. These are called crepuscular rays.

HAZE - Haze is defined simply as a large concentration of nuclei - whose source is most typically dust or salt particles.

Dry haze

Wet haze - condensation can occur at RH of 80%.

As the relative humidity increases and approaches 100% the haze particles grow larger and condensation begins on the less-active nuclei. When the visibility lowers to less than 1 km (.62 mi.) and the air contains water droplets we have a FOG.


Fog forms in one of three ways:

  1. by cooling the air
  2. by evaporation of water into the air
  3. mixing of air parcels

The types of fog are named with reference to the method by which the air becomes saturated.

Favorable conditions:

  1. clear nights,
  2. shallow layer of moist air near the ground,
  3. long nights,
  4. light winds

Radiation fogs are common over land in late fall and winter. Radiation fogs also form in low-lying areas VALLEY FOG. Cold air and high moisture content in river valleys make them susceptible to radiation fog. Radiation fogs form at the ground and are deepest around sunrise - sometimes an increase in thickness at sunrise due to the evaporation of dew.

The above methods of forming a fog all require cooling

Fogs do not "burn off". As the sun warms the ground, the air near the ground warms, thereby lowering the relative humidity. This warmer drier air mixes upwards, thus destroying the fog. Sometimes the fog does not totally dissipate, but forms a stratus cloud.