Terminology and naming conventions

The following terminology and naming conventions are used in this section.

Metric and Meta Data

Meta Data:
Data that is used by the system to describe/define the data that is measured. Examples include:
  • Formulas (Metrics)
  • Resources (Subelements)
  • Hosts (Elements)
  • Grouping
  • Thresholds
Metric Data:
Customer data that is stored for reporting. Examples include:
  • Numeric Raw Data
  • Baseline Threshold Data
  • Resource Aggregations
  • Group Aggregations
  • Sparse Metrics

DataChannel components

DataChannel component names include the following:

LDR:
Is responsible for merging, remerging, and loading hourly raw and baseline data and all aggregation data, and performing end of period loads for aggregated data.
DLDR:
Is responsible for sort-merging the 24 individual hourly raw and baseline data files and loading these merged files into the database.
CME:
Complex Metrics Engine performs resource level data aggregation for a single Collector.
BOF:
Binary Output File.
Channel:
LDR and DLDR operate at the channel level. These components sort-merge files that arrive from the set of CMEs assigned to that channel and loads them into the database.

Channel table set type

Tivoli® Netcool® Performance Manager uses the following channel table set types:

NRAW:
Numeric raw values.
BASE:
Baseline threshold values.
1DRA:
Resource aggregated values for one day.
1WRA:
Resource aggregated values for one week.
1MRA:
Resource aggregated values for one month.
1DGA:
Group aggregated values for one day.
1WGA:
Group aggregated values for one week.
1MGA:
Group aggregated values for one month.
SNRW:
Sparse numeric raw values.

Metric Data tablespaces

Format
C{Chnl}_{Type}_{AggSet}_{TSpace}

With:

  • {Chnl} The channel set number (1 - 8), 2 digits formatted
  • {Type} The tablespace types (4 characters)
  • {AggSet} Aggregation Set number - 3 digits formatted
  • {TSpace} Tablespace identifier that is defined with a readable date format - YYYYMMDDHH24 Value 0000000000 is used for working tablespaces.

Metric Data tablespace datafiles

Format
C03_NRAW_000_0000000000

The working tablespace that contains the raw data for channel three. 

C02_1WRA_000_2000090400

The historic tablespace that contains weekly data for resource aggregates for the week and starts with 09-04-2000 at 00.00, aggregation set zero and channel three.

{DbId}_C{Chnl}_{Type}_{TSpace}_{file#}.dbf

With:

  • {DbId}: The database name
  • {Chnl}: The Channel Number (1 - 8), 2 digits formatted
  • {Type}: The Channel Table Set Type (4 characters)
  • {TSpace}: Tablespace identifier that is defined with a readable date format - YYYYMMDDHH24 (0000000000 is defined as a working tablespace) • {File#}: File number of the tablespace
Examples
TEST_C03_1DGA_0000000000_001.dbf

The first datafile of the C03_1DGA_0000000000 tablespace in the TEST database.