| Event Id | 1020 |
| Source | MSExchangeMig |
| Description | CCMail DB8 extraction - Error writing data to the IFF files for Message <message id>. Return Code <error code>. |
| Event Information | During a one-step migration, Migration Wizard stores migration files in the Temp directory. However, the wizard could not write the data. Use System Monitor to measure memory usage and optimize performance. You may need to increase paging file size, or stop other running applications and remove unused files and applications from the servers disk. |
| Reference Links | Microsoft product: Exchange Version: 6.0 Event Source: MSExchangeMig Event ID: 1020 |
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