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Deployment Web > DeploymentInstallingUpgradingAndMigrating > RationalTeamConcertOnlineMigrationTestMatrix
Deployment Web > DeploymentInstallingUpgradingAndMigrating > RationalTeamConcertOnlineMigrationTestMatrix 
Rational Team Concert online migration test matrix
Authors: AndrewNiefer, LisaFrankel Build basis: CLM 5.0
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Starting in Rational Team Concert V5.0, you can choose to migrate data from an older version of the product to the latest product version while the production server is still online. This migration method is called pre-upgrade online migration. Before implementing an online migration, determine whether offline or online migration is warranted for your repository by running the migration estimation command and then checking the following test results matrix for guidance on the results.
If online migration is recommended for your repository, follow the detailed instructions in the Collaborative Lifecycle Management V5.0 Knowledge Center, Interactive upgrade guide.
After an online migration has processed 1% of the states, an estimated completion time is displayed.
Testing matrix
Unless noted as a production migration, the following times were obtained on a Linux VM image with 2 CPUs and 16G RAM, running at 2.27GHz, with DB2 and the CCM server running on the same machine. The default parameters for the online miration command arepriority=50 and numStatesPerRun=100.
| Data | Database | Repository size | Artifact counts (migrating states / total) |
Parameters (priority, numStatesPerRun) |
Online migration time | Additional offline time (addTables) |
Notes |
|---|---|---|---|---|---|---|---|
| Jazz.net CCM | DB2 | 489GB | 2.6M / 28M | p=100, n=1000 | 9h | 2h50m | |
| p=100, n=100 | 8h50m | 2h50m | |||||
| p=50, n=100 (defaults) | 12h | 1h45m | Production server migration | ||||
| Jazzdev 02 | DB2 | 179GB | 658/10M | defaults | 2h 15m | 1h | Production server migration |
| SCM team test machine | DB2 | 173GB | 930K / 9.2M | defaults | 1h30m | 25m | |
| Jazzdev 04 | DB2 | 240k | defaults | 1h | 20m | Production server migration | |
| JazzHub staging | DB2 | 43GB | 35k / 6M | defaults | 6m | 9m | Many small project areas |
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