Version

Argent Advanced Technology – All Versions

Date

Wednesday, 19 September 2018

Summary

This document discusses how Argent Advanced Technology calculates the Global Health of Enterprise Application Views

Technical Background

Enterprise Application Views (EAV) look at Alerts in the AAC_CONSOLE table that matches the specified Rule names for a specified set of Nodes and ultimately calculate a “Global Health” of the EAV

Each “dot” on an EAV can either be a node or another EAV, known as an ’embedded EAV’

Each “dot” has the following properties:

• Component Name:     Arbitrary text
• Node Type:                Node or Embedded EAV
• Server/Device:            Node Name or EAV name
• Application:               Arbitrary text
• Global Health %:        Percentage of Global Health to reduce if a matching Rule is bound for the given Node
• Rules That Are Used To Monitor This Component:     A list of product-specific Rules to match

By default, the Health percentage is then weighted based on the priority of the Alert (Low, Medium, High)

In fact, the priority of the Alert plays the most important role in the status and calculation of each “dot”

All information on EAVs is stored as XML data in {Drive:}\Argent\ArgentConsole\ARGENT_ENTERPRISE_APPLICATIONS.XML

After all calculations of Global Health of each dot is made, each dot is assigned the following:

• Status label     (Normal, Degraded, Failed, Suspended)
• Color                (Green, Yellow, Red, Blue)
• % Health Reduction     

Each EAV can have a different algorithm, which affects the calculations, color and status of a dot

• Weighted Health Calculation
  

  This is the default; simply applies a weighted calculation and reduction of Global Health for each dot

• One Down All Down
  

  If ANY dot exists that has matching unanswered Alerts, the Total Global Health is set to ZERO

• One Up All Up
  

  If ANY dot exists that has NO matching Alerts, the Total Global Health will always display 100%

Nomenclature

In the Argent Advanced Technology GUI, each dot also has a “status label”:

• Normal:         The count of dots that had no matching unanswered Alerts
• Degraded:     The count of dots that had matching unanswered Alerts with medium or low priority
• Failed:           The count of dots that had matching unanswered Alerts with high priority
• Suspended:    The count of dots for nodes that are in ‘Suspend’ mode

How Total Global Health Is Calculated

This section applies to the ‘Weighted Health Algorithm’ only, as the other two algorithms are trivial

First we start at 100% Global Health

Next, for each “dot”:

This is located in the ArgentConsole registry – by default it is set to ‘1’

If set to ‘0’, this simply means that ANY Alert, regardless of priority, is weighted at a multiplier of 1, which means if the Global Health % of the dot was 20%, it would always deduct 20% if a matching unanswered Alert is found, even if it was ‘Low’ priority

When this occurs, the status of the dot is also labeled as ‘Failed’ instead of ‘Degraded’

For embedded EAVs, the Total Global Health of the embedded EAV needs to be calculated first; the result of the Total Global Health of the EAV is then used to determine the Global Health reduction on the embedded EAV dot, the status, and the color:

The Global Health reduction of an embedded EAV dot is:

For example, if the embedded EAV was set to a Global Health of 50%, and if the embedded EAV itself had a Total Global Health of 40%, then the weighted reduction in Global Health would be:

The color and status for embedded EAVs is as follows:

Suspended Nodes are found by querying the SUSPEND_FLAG in ARGSOFT_AT_NODE – if found, the dot is colored BLUE and the status is ‘Suspended’

Resolution

N/A