Migrating delta data after CDM denormalization

For a parallel upgrade (with staging server), consider the following points before migrating the delta data:

Refresh the Delta Data Migration (DDM) package before you migrate the delta data to the server with denormalized CDM.
Perform the delta data migration after the CDM denormalization is complete and all the validation tasks are successfully completed.
Delta data migration is limited to the out-of-the-box classes and attributes listed in the following table. If you use custom attributes for any of these classes, update the respective .arm file.

Supported Classes	Attributes
BMC_LogicalSystemComponent	SystemClassId
	SystemName
	isVirtual
BMC_Product	ProductType
	BuildType
	LicenseType
	ServicePack
	ConfigurationBasicNumber
	ContractID
	LicensesAvailable
	PatchNumber
	InstallLocation
	BuildNumber
BMC_Component	IsNext
	IsMaximum
	IsDefault
	IsMinimum
	IsCurrent
	IsPending

To migrate delta data after CDM denormalization

Copy the <version number> folder of CDM denormalization DDM package from Atrium Core Home directory to the Migrator installation folder.
For example,
Copy From:
C:\Program Files\BMC Software\AtriumCore\cmdb\utils\cdmflattening\Migrator\DDM\DDM_Packages\Atrium\CMDB\8.8\
To:
C:\Program Files\BMC Software\Migrator\migrator\DeltaDataMigration\Packages\Atrium\CMDB\8.8\
Open the BMC-Atrium_CMDB.xml file from the <version number> folder of CDM denormalization in the Atrium Core Home directory.
For example,
C:\Program Files\BMC Software\Migrator\migrator\DeltaDataMigration\Packages\Atrium\CMDB\8.8
Locate the BMC.CORE:BMC_Product_ form name entry and change the data enabled tag to false.
For example:
From:
<data enabled="true" source-form="BMC.CORE:BMC_Product_" destination-form="BMC.CORE:BMC_Product_" type="data" mode="search" merge-option="update" ignore-required-fields="true" ignore-pattern-matching="true" count="0" disable-related-workflow="true">
To:
<data enabled="false" source-form="BMC.CORE:BMC_Product_" destination-form="BMC.CORE:BMC_Product_" type="data" mode="search" merge-option="update" ignore-required-fields="true" ignore-pattern-matching="true" count="0" disable-related-workflow="true">
Repeat step 3 for the BMC_LogicalSystemComponent_ and BMC_Component_ forms.
Run the Migrator.
See, Migrating delta data.