A major upgrade, minor upgrade, reconfigurations, and expansions require a system redeployment. For information on how to upgrade the Teradata Database running in a virtual or public cloud environment, log on to TaYS (https://access.teradata.com) and search for the following Knowledge Article: KCS001779.
|Bundle Download Mechanism||You obtain software upgrade bundles from Teradata at Your Service, which uses Akamai for the download process. If you are a new Akamai user, you are prompted to complete additional steps related to Akamai setup when first downloading an upgrade bundle.|
|Operating System Updates||Because the operating system software bundle includes both important security updates and the latest version of the utility used to upgrade Teradata components (PUT), you must download this bundle whenever upgrading other Teradata components with the exception of Server Management, for which the required updates are included in the image itself.|
|Outage Preparation||When upgrading the operating system and Teradata components other than Server Management, PUT automatically opens a maintenance window and reboots the system. The Server Management upgrade likewise results in a reboot of that component. Be sure to plan accordingly for these events.|
|Data Backups||If performing a major or minor upgrade, use DSC to archive the existing Teradata Database. After the upgrade, use DSC to restore the archive. For more information, see DSC Configuration. You do not need to archive and restore data for maintenance and efix upgrades.|
|Cross-Tier Migration||You cannot migrate from the Teradata Database on VMware Base, Advanced, or Enterprise Tiers to the Teradata Database on VMware Developer Tier. They are separate products.|