This documentation supports the 9.0 version of BMC Remedy ITSM Deployment.

To view the latest version, select the version from the Product version menu.

Migrating delta data

Important

Carefully review the Restrictions after restoring the database on the upgrade server. If you performed any of those tasks, you are not ready to migrate delta data. 

Delta data refers to any data changes that occur on the production server during the upgrade of the staging server. You can migrate delta data by using the Delta Data Migration tool.

Recommendation

BMC recommends that you install the Delta Data Migration tool on a computer other than where you have BMC Remedy Action Request (AR) System installed.

The following table lists the high-level steps for performing delta data migration (DDM).

StepActionDescription
1.Understand the supported migration pathReview the table to find the earliest version from which a component can be migrated to the current version.
2.Review the infrastructure requirementsReview the minimum infrastructure requirements for system and database migration.
3.Install BMC Remedy MigratorThe Delta Data Migration tool is installed with BMC Remedy Migrator.
4.Prepare the source and destination serverAfter the upgrade is complete and customizations are reapplied, the environment is ready for DDM. Perform the described procedures to prepare your source and destination servers for the delta data migration.
5.Extend delta data migration to include customizationsYou can add custom forms to the Delta Data Migration tool so that you can migrate the data in these custom forms.
6. Reconcile your data If your reconciliation job is going to touch more than a million CIs, BMC recommends that you run a reconciliation before you start your first DDM run. Otherwise, DDM is capable of bringing CIs with Reconciliation ID 0 into production and updating them in successive runs.
7.Perform the data migrationYou can run the Delta Data Migration tool one time or multiple times. BMC recommends that you run the tool at least twice: before you start your production outage, and again after the production outage begins.
8.

Review the migration results and resolve issues

None.
9.Complete the postmigration activitiesComplete the postmigration activities before you proceed with the next step.
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