6.1

Table Of Contents
ADM Repository Reference Guide
28 VMware, Inc.
Overview of External Database Tables
Thischapterprovidesinformationabouttheexternaldatabasetables.
Database Structure and Dependencies
Figure 41illustratesthestructureanddependenciesoftheADMexternaldatabase.Arrowheadsareusedto
identifythetablekeys.
Itisimportanttonotethatsomeofthecommonlyaccesseddataisduplicatedinmanytablestoavoid
unnecessaryjoins.
Fordisplaypurposes,somedataisaggregatedtoa
commaseparatedlist.Forexample:
hostnamesaflatlistofoneormorehostnames.
host_ipsaflatlistofallIPsofahost.
groupsaflatlistofgroupstheentitybelongsto.
Asinglerelationcalledentity_id(ingroupmembership,usagemetric,etc.)couldbejoinedwithallthree
“entity”tables(network_element,service,anddependency)althoughitisnotshownintheERDasa
foreignkey.