When an Upgrade Fails

If the upgrade process fails, the installation program displays error messages.

Once you start Adaptive Server on the new version, you cannot start Adaptive Server on the earlier version. Attempts to do so result in having to restore from backups.

• If You Can Identify the Cause of the Upgrade Failure
  If the error logs or messages clearly indicate the cause of failure, and you are confident that your databases have not been damaged, you can attempt to fix the problem and immediately re-run the upgrade.
• Restoring Databases After a Failed Upgrade
  You may need to restore your databases due to a failed upgrade.
• Re-running the Cluster Edition Upgrade
  Failures while upgrading a server installation fall into one of two categories: failure to upgrade an individual database, or failure to complete configuration changes after all databases have been upgraded.
• If You Cannot Identify the Cause of an Upgrade Failure
  Your attempts to upgrade may continue to fail.
• If Lack of Space Prevents an Upgrade
  During the upgrade process, the transaction log may fill due to system table changes. A full transaction log may prevent a successful Adaptive Server upgrade.